<PAGE>

                                                                    Exhibit 4.18

================================================================================

                               GUARANTEE AGREEMENT

                                 by and between

                       AMERICAN INTERNATIONAL GROUP, INC.,
                                  as Guarantor

                                       and

                              THE BANK OF NEW YORK,
                              as Guarantee Trustee

                                   relating to

                              AIG CAPITAL TRUST ( )

                                -----------------

                         Dated as of ____________, ____

                                -----------------

================================================================================

<PAGE>

                             CROSS-REFERENCE TABLE*

<TABLE>
<CAPTION>
Section of
Trust Indenture Act                                                                               Section of
of 1939, as amended                                                                           Guarantee Agreement
-------------------                                                                           -------------------
<S>                                                                                           <C>
310(a)..........................................................................................   4.1(a)

310(b)..........................................................................................   4.1(c), 2.8

310(c)..........................................................................................   Inapplicable

311(a)..........................................................................................   2.2(b)

311(b)..........................................................................................   2.2(b)

311(c)..........................................................................................   Inapplicable

312(a)..........................................................................................   2.2(a)

312(b)..........................................................................................   2.2(b)

312(c)..........................................................................................   2.2(c)

313.............................................................................................   2.3

314(a)..........................................................................................   2.4

314(b)..........................................................................................   Inapplicable

314(c)..........................................................................................   2.5

314(d)..........................................................................................   Inapplicable

314(e)..........................................................................................   1.1, 2.5, 3.2

314(f)..........................................................................................   2.1, 3.2

315(a)..........................................................................................   3.1(d)

315(b)..........................................................................................   2.7

315(c)..........................................................................................   3.1

315(d)..........................................................................................   3.1(d)

315(e)..........................................................................................   4.3

316(a)..........................................................................................   1.1, 2.6(a), 5.4

316(b)..........................................................................................   2.6(b)

316(c)..........................................................................................   8.2

317(a)..........................................................................................   Inapplicable

317(b)..........................................................................................   Inapplicable

318(a)..........................................................................................   2.1

318(b)..........................................................................................   2.1

318(c)..........................................................................................   2.1
</TABLE>

--------
*  This Cross-Reference Table does not, for any purpose, constitute part of the
   Guarantee Agreement and shall not affect the interpretation of any of its
   terms or provisions.

                                       -i-

<PAGE>

                                TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                                                Page
<S>                                                                                                             <C>

                                    ARTICLE I

                                   DEFINITIONS

SECTION 1.1         DEFINITIONS...............................................................................    1

                                 ARTICLE II

                             TRUST INDENTURE ACT

SECTION 2.1         TRUST INDENTURE ACT; APPLICATION..........................................................    5
SECTION 2.2         LIST OF HOLDERS...........................................................................    5
SECTION 2.3         REPORTS BY THE GUARANTEE TRUSTEE..........................................................    6
SECTION 2.4         PERIODIC REPORTS TO THE GUARANTEE TRUSTEE.................................................    6
SECTION 2.5         EVIDENCE OF COMPLIANCE WITH CONDITIONS PRECEDENT..........................................    6
SECTION 2.6         EVENTS OF DEFAULT; WAIVER.................................................................    6
SECTION 2.7         EVENT OF DEFAULT; NOTICE..................................................................    6
SECTION 2.8         CONFLICTING INTERESTS.....................................................................    7

                                  ARTICLE III

              POWERS, DUTIES AND RIGHTS OF THE GUARANTEE TRUSTEE

SECTION 3.1         POWERS AND DUTIES OF THE GUARANTEE TRUSTEE................................................    7
SECTION 3.2         CERTAIN RIGHTS OF GUARANTEE TRUSTEE.......................................................    8
SECTION 3.3         COMPENSATION; INDEMNITY; FEES.............................................................   10

                                  ARTICLE IV

                               GUARANTEE TRUSTEE

SECTION 4.1         GUARANTEE TRUSTEE; ELIGIBILITY............................................................   11
SECTION 4.2         APPOINTMENT, REMOVAL AND RESIGNATION OF THE GUARANTEE TRUSTEE.............................   11
SECTION 4.3         UNDERTAKING FOR COSTS.....................................................................   12

                                   ARTICLE V

                                   GUARANTEE

SECTION 5.1         GUARANTEE.................................................................................   13
SECTION 5.2         NATURE OF GUARANTEE.......................................................................   13
</TABLE>

                                      -ii-

<PAGE>

<TABLE>
<S>                                                                                                             <C>
SECTION 5.3         CHANGES IN OBLIGATIONS AND AGREEMENTS RELATING THERETO; WAIVER OF CERTAIN NOTICES.........   13
SECTION 5.4         RIGHTS OF HOLDERS.........................................................................   14
SECTION 5.5         SUBROGATION...............................................................................   14
SECTION 5.6         NO WAIVER; CUMULATIVE RIGHTS..............................................................   14

                                  ARTICLE VI

                          COVENANTS AND SUBORDINATION

SECTION 6.1         SUBORDINATION.............................................................................   15
SECTION 6.2         PARI PASSU GUARANTEES.....................................................................   15

                                  ARTICLE VII

                                  TERMINATION

SECTION 7.1         TERMINATION...............................................................................   15

                                  ARTICLE VIII

                                 MISCELLANEOUS

SECTION 8.1         SUCCESSORS AND ASSIGNS....................................................................   16
SECTION 8.2         AMENDMENTS................................................................................   16
SECTION 8.3         NOTICES...................................................................................   16
SECTION 8.4         BENEFIT...................................................................................   17
SECTION 8.5         GOVERNING LAW.............................................................................   17
SECTION 8.6         COUNTERPARTS..............................................................................   17
</TABLE>

                                      -iii-

<PAGE>

         GUARANTEE AGREEMENT, dated as of ____________, ____, between AMERICAN
INTERNATIONAL GROUP, INC. a Delaware corporation (the "Guarantor" or "AIG"),
having its principal office at 70 Pine Street, New York, NY 10270, and THE BANK
OF NEW YORK, as trustee (the "Guarantee Trustee" or "The Bank of New York"), for
the benefit of the Holders (as defined herein) from time to time of the Capital
Securities (as defined herein) of AIG CAPITAL TRUST ( ), a Delaware statutory
trust (the "Issuer Trust").

                 RECITALS OF THE GUARANTOR AND THE ISSUER TRUST

         WHEREAS, pursuant to an Amended and Restated Trust Agreement, dated as
of ____________, ____ (the "Trust Agreement"), among American International
Group, Inc., as Sponsor, The Bank of New York, as Property Trustee, The Bank of
New York (Delaware), as Delaware Trustee and the Administrators named therein,
the Issuer Trust is issuing $___________ aggregate Liquidation Amount (as
defined in the Trust Agreement) of its ___________ (liquidation amount $_____
per Capital Security) (the "Capital Securities"), representing preferred
undivided beneficial interests in the assets of the Issuer Trust and having the
terms set forth in the Trust Agreement; and

         WHEREAS, the Capital Securities will be issued by the Issuer Trust and
the proceeds thereof, together with the proceeds from the issuance of the Issuer
Trust's Common Securities (as defined herein), will be used to purchase the
Junior Subordinated Debentures (as defined in the Trust Agreement) of the
Guarantor, which Junior Subordinated Debentures will be deposited with The Bank
of New York, as Property Trustee under the Trust Agreement, as trust assets; and

         WHEREAS, as an incentive for the Holders to purchase Capital
Securities, the Guarantor desires unconditionally to agree, to the extent set
forth herein, to pay to the Holders of the Capital Securities the Guarantee
Payments (as defined herein) and to make certain other payments on the terms and
conditions set forth herein.

         NOW, THEREFORE, in consideration of the purchase of Capital Securities
by each Holder, which purchase the Guarantor hereby acknowledges shall benefit
the Guarantor, and intending to be legally bound hereby, the Guarantor executes
and delivers this Guarantee Agreement for the benefit of the Holders from time
to time of the Capital Securities.

                                    ARTICLE I

                                   DEFINITIONS

         SECTION 1.1       Definitions.

         Any capitalized term used herein but not defined shall have the meaning
ascribed to it in the Trust Agreement. For all purposes of this Guarantee
Agreement, except as otherwise expressly provided or unless the context
otherwise requires:

                                       -1-

<PAGE>

         (a) The terms defined in this Article have the meanings assigned to
them in this Article, and include the plural as well as the singular;

         (b) All other terms used herein that are defined in the Trust Indenture
Act, either directly or by reference therein, have the meanings assigned to them
therein;

         (c) The words "include", "includes" and "including" shall be deemed to
be followed by the phrase "without limitation";

         (d) All accounting terms used but not defined herein have the meanings
assigned to them in accordance with United States generally accepted accounting
principles;

         (e) Unless the context otherwise requires, any reference to an
"Article" or a "Section" refers to an Article or a Section, as the case may be,
of this Guarantee Agreement; and

         (f) The words "hereby", "herein", "hereof" and "hereunder" and other
words of similar import refer to this Guarantee Agreement as a whole and not to
any particular Article, Section or other subdivision.

         "AFFILIATE" of any specified Person means any other Person directly or
indirectly controlling or controlled by or under direct or indirect common
control with such specified Person. For the purposes of this definition,
"control", when used with respect to any specified Person means the power to
direct the management and policies of such Person, directly or indirectly,
whether through the ownership of voting securities, by contract or otherwise;
and the terms "controlling" and "controlled" have meanings correlative to the
foregoing.

         "CAPITAL SECURITIES" has the meaning specified in the recitals to this
Guarantee Agreement.

         "COMMON SECURITIES" means the securities representing common undivided
beneficial interests in the assets of the Issuer Trust.

         "CORPORATION" means a corporation, association, company, joint-stock
company, limited liability company or business trust.

         "EVENT OF DEFAULT" means (i) a default by the Guarantor in any of its
payment obligations under this Guarantee Agreement, and the continuance of such
default for five days, or (ii) a default by the Guarantor in any other
obligation hereunder, and the continuance of such default for a period of 30
days after there has been given, by registered or certified mail, to the
Guarantor by the Guarantee Trustee or to the Guarantor and the Guarantee Trustee
by the Holders of at least 25% in Liquidation Amount (as defined in the Trust
Agreement) of the Outstanding Capital Securities (as defined in the Trust
Agreement) a written notice specifying such default and requiring it to be
remedied.

                                       -2-

<PAGE>

         "GUARANTEE AGREEMENT" means this Guarantee Agreement, as modified,
amended or supplemented from time to time.

         "GUARANTEE PAYMENTS" means the following payments or distributions,
without duplication, with respect to the Capital Securities, to the extent not
paid or made by or on behalf of the Issuer Trust: (i) any accumulated and unpaid
Distributions (as defined in the Trust Agreement) required to be paid on the
Capital Securities, to the extent the Issuer Trust shall have funds on hand
available to make such Distributions at such time; (ii) the Redemption Price (as
defined in the Trust Agreement) with respect to any Capital Securities called
for redemption by the Issuer Trust, to the extent the Issuer Trust shall have
funds on hand available to pay such Redemption Price at such time; and (iii)
upon a voluntary or involuntary dissolution, winding-up or liquidation of the
Issuer Trust, unless Junior Subordinated Debentures are distributed to the
Holders, the lesser of (a) the Liquidation Distribution (as defined in the Trust
Agreement) with respect to the Capital Securities, to the extent that the Issuer
Trust shall have funds on hand available to make such Liquidation Distribution
at such time, and (b) the amount of assets of the Issuer Trust remaining
available for distribution to Holders on liquidation of the Issuer.

         "GUARANTEE TRUSTEE" means The Bank of New York, solely in its capacity
as Guarantee Trustee and not in its individual capacity, until a Successor
Guarantee Trustee has been appointed and has accepted such appointment pursuant
to the terms of this Guarantee Agreement, and thereafter means each such
Successor Guarantee Trustee.

         "GUARANTOR" has the meaning specified in the preamble to of this
Guarantee Agreement.

         "HOLDER" means any Holder (as defined in the Trust Agreement) of any
Capital Securities; provided, however, that in determining whether the holders
of the requisite percentage of Capital Securities have given any request,
notice, consent or waiver hereunder, "Holder" shall not include the Guarantor or
any Affiliate of the Guarantor.

         "INDENTURE" means the Junior Subordinated Debt Indenture, dated as of
________,______, between American International Group, Inc. and The Bank of New
York, as trustee, as supplemented by the First Supplemental Junior Subordinated
Debt Indenture, dated as of ____, ____, and as may be further modified, amended
or supplemented from time to time relating to the issuance of the Junior
Subordinate Debentures.

         "ISSUER TRUST" has the meaning specified in the preamble to of this
Guarantee Agreement.

         "MAJORITY IN LIQUIDATION AMOUNT OF THE CAPITAL SECURITIES" means
Capital Securities representing 50% or more of the aggregate Liquidation Amount
(as defined in the Trust Agreement) of all Capital Securities then Outstanding
(as defined in the Trust Agreement).

         "OFFICERS' CERTIFICATE" means a certificate signed by the Chairman, a
Vice Chairman, the President or a Vice President of the Guarantor, and by the
Treasurer, an Assistant

                                       -3-

<PAGE>

Treasurer, the Secretary or an Assistant Secretary of the Guarantor, and
delivered to the Guarantee Trustee. Any Officers' Certificate delivered with
respect to compliance with a condition or covenant provided for in this
Guarantee Agreement shall include:

         (a)      a statement by each officer signing the Officers' Certificate
that such officer has read the covenant or condition and the definitions
relating thereto;

         (b)      a brief statement of the nature and scope of the examination
or investigation undertaken by such officer in rendering the Officers'
Certificate;

         (c)      a statement that such officer has made such examination or
investigation as, in such officer's opinion, is necessary to enable such officer
to express an informed opinion as to whether or not such covenant or condition
has been complied with; and

         (d)      a statement as to whether, in the opinion of such officer,
such condition or covenant has been complied with.

         "PERSON" means any individual, corporation, partnership, joint venture,
trust, unincorporated organization or government or any agency or
political subdivision thereof, or any other entity of whatever nature.

         "SUCCESSOR GUARANTEE TRUSTEE" means a successor Guarantee Trustee
possessing the qualifications to act as Guarantee Trustee under Section 4.1.

         "TRUST AGREEMENT" means the Amended and Restated Trust Agreement of the
Issuer Trust referred to in the recitals to this Guarantee Agreement, as
modified, amended or supplemented from time to time.

         "TRUST INDENTURE ACT" means the Trust Indenture Act of 1939 as in force
at the date as of which this Guarantee Agreement was executed; provided,
however, that in the event the Trust Indenture Act of 1939 is amended after such
date, "Trust Indenture Act" means, to the extent required by any such amendment,
the Trust Indenture Act of 1939 as so amended.

         "VICE PRESIDENT," when used with respect to a corporation, means any
duly appointed vice president, whether or not designated by a number or a word
or words added before or after the title "vice president."

                                       -4-

<PAGE>

                                   ARTICLE II

                               TRUST INDENTURE ACT

         SECTION 2.1       Trust Indenture Act; Application

         (a) This Guarantee Agreement is subject to the provisions of the Trust
Indenture Act that are required to be part of this Guarantee Agreement and
shall, to the extent applicable, be governed by such provisions.

         (b) If any provision hereof limits, qualifies or conflicts with a
provision of the Trust Indenture Act which is required under such Act to be a
part of and govern this Guarantee Agreement, the latter provision shall control.
If any provision of this Guarantee Agreement modifies or excludes any provision
of the Trust Indenture Act which may be so modified or excluded, the latter
provision shall be deemed to apply to this Guarantee Agreement as so modified or
to be excluded, as the case may be.

         (c) The application of the Trust Indenture Act to this Guarantee
Agreement shall not affect the nature of the Capital Securities as equity
securities representing undivided beneficial interests in the assets of the
Issuer Trust.

         SECTION 2.2       List of Holders.

         (a) The Guarantor shall furnish or cause to be furnished to the
Guarantee Trustee (i) semiannually not later than March 31 and September 30 a
list, in such form as the Guarantee Trustee may reasonably require, of the names
and addresses of the Holders as of the preceding March 16 or September 15, and
(ii) at such other times as the Guarantee Trustee may request in writing, within
30 days after the receipt by the Guarantor of any such request, a list of
similar form and content as of a date not more than 15 days prior to the time
such list is furnished, in each case to the extent such information is in the
possession or control of the Guarantor. The Guarantee Trustee shall preserve, in
as current a form as is reasonably practicable, the names and addresses of
Holders contained in the most recent list furnished to the Guarantee Trustee as
provided in this Section 2.2(a) and the names and addresses of Holders received
by the Guarantee Trustee in its capacity as such. The Guarantee Trustee may
destroy any list furnished to it as provided in this Section 2.2(a) upon receipt
of a new list so furnished.

         (b) The Guarantee Trustee shall comply with the requirements of Section
311(a), Section 311(b) and Section 312(b) of the Trust Indenture Act.

         (c) Every Holder agrees with the Guarantor and the Guarantee Trustee
that neither the Guarantor nor the Guarantee Trustee nor any agent of either of
them shall be held accountable by reason of any disclosure of information as to
names and addresses of Holders made pursuant to the Trust Indenture Act.

                                       -5-

<PAGE>

         SECTION 2.3       Reports by the Guarantee Trustee.

         The Guarantee Trustee shall transmit to Holders such reports concerning
the Guarantee Trustee and its actions under this Guarantee Agreement as may be
required pursuant to the Trust Indenture Act at the times and in the manner
provided pursuant thereto.

         A copy of each such report shall, at the time of such transmission to
Holders, be filed by the Guarantee Trustee with each stock exchange upon which
any Capital Securities are listed, with the Commission and with the Guarantor.
The Guarantor will notify the Guarantee Trustee when any Capital Securities are
listed on any stock exchange.

         SECTION 2.4       Periodic Reports to the Guarantee Trustee.

         The Guarantor shall provide to the Guarantee Trustee, the Commission
and the Holders of such documents, reports and information as required by
Section 314 of the Trust Indenture Act (if any) and the compliance certificate
required by Section 314(a) of the Trust Indenture Act in the form, in the manner
and at the times required by Section 314(a) of the Trust Indenture Act.

         SECTION 2.5       Evidence of Compliance with Conditions Precedent.

         The Guarantor shall provide to the Guarantee Trustee such evidence of
compliance with such conditions precedent, if any, provided for in this
Guarantee Agreement that relate to any of the matters set forth in Section
314(c) of the Trust Indenture Act. Any certificate or opinion required to be
given by an officer of the Guarantor pursuant to Section 314(c)(1) may be given
in the form of an Officers' Certificate.

         SECTION 2.6      Events of Default; Waiver.

         (a) The Holders of at least a Majority in Liquidation Amount of the
Capital Securities may, by vote, on behalf of the Holders of all the Capital
Securities, waive any past default or Event of Default and its consequences,
except a default in the payment of the Guarantee Payments. Upon such waiver, any
such default or Event of Default shall cease to exist, and any default or Event
of Default arising therefrom shall be deemed to have been cured, for every
purpose of this Guarantee Agreement, but no such waiver shall extend to any
subsequent or other default or Event of Default or impair any right consequent
thereon.

         (b) The Holder of any Capital Security shall have the right, which is
absolute and unconditional, to receive the Guarantee Payments and to institute
suit for the enforcement of Guarantee Payments, and such rights shall not be
impaired without the consent of such Holder.

         SECTION 2.7       Event of Default; Notice.

         The Guarantee Trustee shall, within 90 days after the occurrence of an
Event of Default known to the Guarantee Trustee, transmit by mail, first class
postage prepaid, to the Holders,

                                       -6-

<PAGE>

notice of any such Event of Default, unless such Event of Default has been cured
before the giving of such notice.

         SECTION 2.8       Conflicting Interests.

         If the Guarantee Trustee has or shall acquire a conflicting interest
within the meaning of the Trust Indenture Act, the Guarantee Trustee shall
either eliminate such interest or resign, to the extent and in the manner
provided by, and subject to the provisions of, the Trust Indenture Act and this
Guarantee Agreement. To the extent permitted by such Act, the Guarantee Trustee
shall not be deemed to have a conflicting interest by virtue of being a trustee
under the Indenture or the Trust Agreement.

                                   ARTICLE III

               POWERS, DUTIES AND RIGHTS OF THE GUARANTEE TRUSTEE

         SECTION 3.1       Powers and Duties of the Guarantee Trustee.

         (a) This Guarantee Agreement shall be held by the Guarantee Trustee for
the benefit of the Holders, and the Guarantee Trustee shall not transfer its
rights, powers, trusts and duties in this Guarantee Agreement to any Person
except to a Successor Guarantee Trustee on acceptance by such Successor
Guarantee Trustee of its appointment to act as Guarantee Trustee in accordance
with Section 4.2. The rights, powers, trusts and duties of the Guarantee
Trustee, as such, hereunder shall automatically vest in any Successor Guarantee
Trustee, upon acceptance by such Successor Guarantee Trustee of its appointment
in accordance with Section 4.2.

         (b) If an Event of Default has occurred and is continuing, the
Guarantee Trustee shall enforce this Guarantee Agreement for the benefit of the
Holders.

         (c) The Guarantee Trustee, before the occurrence of any Event of
Default and after the curing of all Events of Default that may have occurred,
shall undertake to perform only such duties as are specifically set forth in
this Guarantee Agreement, and no implied covenants shall be read into this
Guarantee Agreement against the Guarantee Trustee. The Guarantee Trustee shall
exercise such of the rights and powers vested in it by this Guarantee Agreement,
and use the same degree of care and skill in its exercise thereof, as a prudent
person would exercise or use under the circumstances in the conduct of his or
her own affairs.

         (d) No provision of this Guarantee Agreement shall be construed to
relieve the Guarantee Trustee from liability for its own negligent action, its
own negligent failure to act, its own bad faith or its own willful misconduct,
except that:

                  (i) prior to the occurrence of any Event of Default and after
         the curing or waiving of all such Events of Default that may have
         occurred:

                                       -7-

<PAGE>

                           (A) the duties and obligations of the Guarantee
                  Trustee shall be determined solely by the express provisions
                  of this Guarantee Agreement (including pursuant to Section
                  2.1), and the Guarantee Trustee shall not be liable except for
                  the performance of such duties and obligations as are
                  specifically set forth in this Guarantee Agreement; and

                           (B) in the absence of bad faith on the part of the
                  Guarantee Trustee, the Guarantee Trustee may conclusively
                  rely, as to the truth of the statements and the correctness of
                  the opinions expressed therein, upon any certificates or
                  opinions furnished to the Guarantee Trustee and conforming to
                  the requirements of this Guarantee Agreement; but in the case
                  of any such certificates or opinions that by any provision
                  hereof or of the Trust Indenture Act are specifically required
                  to be furnished to the Guarantee Trustee, the Guarantee
                  Trustee shall be under a duty to examine the same to determine
                  whether or not they substantially conform to the requirements
                  of this Guarantee Agreement;

                  (ii) the Guarantee Trustee shall not be liable for any error
         of judgment made in good faith by an authorized officer of the
         Guarantee Trustee, unless it shall be proved that the Guarantee Trustee
         was negligent in ascertaining the pertinent facts upon which such
         judgment was made;

                  (iii) the Guarantee Trustee shall not be liable with respect
         to any action taken or omitted to be taken by it in good faith in
         accordance with the direction of the Holders of not less than a
         Majority in Liquidation Amount of the Capital Securities relating to
         the time, method and place of conducting any proceeding for any remedy
         available to the Guarantee Trustee, or exercising any trust or power
         conferred upon the Guarantee Trustee under this Guarantee Agreement;
         and

                  (iv) no provision of this Guarantee Agreement shall require
         the Guarantee Trustee to expend or risk its own funds or otherwise
         incur personal financial liability in the performance of any of its
         duties or in the exercise of any of its rights or powers, if the
         Guarantee Trustee shall have reasonable grounds for believing that the
         repayment of such funds or liability is not reasonably assured to it
         under the terms of this Guarantee Agreement or adequate indemnity
         against such risk or liability is not reasonably assured to it.

         SECTION 3.2       Certain Rights of Guarantee Trustee.

         (a) Subject to the provisions of Section 3.1:

                  (i) the Guarantee Trustee may conclusively rely and shall be
         fully protected in acting or refraining from acting upon any
         resolution, certificate, statement, instrument, opinion, report,
         notice, request, direction, consent, order, Capital Security
         certificate or

                                       -8-

<PAGE>

         other paper or document reasonably believed by it to be genuine and to
         have been signed, sent or presented by the proper party or parties;

                  (ii) any direction or act of the Guarantor contemplated by
         this Guarantee Agreement shall be sufficiently evidenced by an
         Officers' Certificate unless otherwise prescribed herein;

                  (iii) whenever, in the administration of this Guarantee
         Agreement, the Guarantee Trustee shall deem it desirable that a matter
         be proved or established before taking, suffering or omitting to take
         any action hereunder, the Guarantee Trustee (unless other evidence is
         herein specifically prescribed) may, in the absence of bad faith on its
         part, request and rely upon an Officers' Certificate which, upon
         receipt of such request from the Guarantee Trustee, shall be promptly
         delivered by the Guarantor;

                  (iv) the Guarantee Trustee may consult with legal counsel
         (which counsel may be counsel to the Guarantor or any of its
         Affiliates, and may include any of its employees), and the advice or
         opinion of such legal counsel with respect to legal matters shall be
         full and complete authorization and protection in respect of any action
         taken, suffered or omitted to be taken by it hereunder in good faith
         and in accordance with such advice or opinion. Such legal counsel may
         be legal counsel (which counsel may be counsel to the Guarantor or any
         of its Affiliates, and may include any of its employees) to the
         Guarantor or any of its Affiliates and may be one of its employees. The
         Guarantee Trustee shall have the right at any time to seek instructions
         concerning the administration of this Guarantee Agreement from any
         court of competent jurisdiction;

                  (v) the Guarantee Trustee shall be under no obligation to
         exercise any of the rights or powers vested in it by this Guarantee
         Agreement at the request or direction of any Holder unless such Holder
         shall have provided to the Guarantee Trustee such reasonable security
         and indemnity as would satisfy a reasonable person in the position of
         the Guarantee Trustee against the costs, expenses and liabilities that
         might be incurred by it in complying with such request or direction;
         provided, that nothing contained in this Section 3.2(a)(v) shall be
         taken to relieve the Guarantee Trustee, upon the occurrence of an Event
         of Default, of its obligation to exercise the rights and powers vested
         in it by this Guarantee Agreement;

                  (vi) the Guarantee Trustee shall not be bound to make any
         investigation into the facts or matters stated in any resolution,
         certificate, statement, instrument, opinion, report, notice, request,
         direction, consent, order, Capital Security certificate or other paper
         or document, but the Guarantee Trustee may make such further inquiry or
         investigation into such facts or matters as it may see fit;

                  (vii) the Guarantee Trustee may execute any of the trusts or
         powers hereunder or perform any duties hereunder either directly or by
         or through its agents or attorneys; provided that the Guarantee Trustee
         shall not be responsible for any negligence, bad faith

                                       -9-

<PAGE>

         or misconduct on the part of any such agent or attorney appointed with
         due care by it hereunder; and

                  (viii) whenever in the administration of this Guarantee
         Agreement the Guarantee Trustee shall deem it desirable to receive
         instructions with respect to enforcing any remedy or right or taking
         any other action hereunder, the Guarantee Trustee (A) may request
         instructions from the Holders, (B) may refrain from enforcing such
         remedy or right or taking such other action until such instructions are
         received and (C) shall be protected in acting in accordance with such
         instructions.

         (b) No provision of this Guarantee Agreement shall be deemed to impose
any duty or obligation on the Guarantee Trustee to perform any act or acts or
exercise any right, power, duty or obligation conferred or imposed on it, in any
jurisdiction in which it shall be illegal, or in which the Guarantee Trustee
shall be unqualified or incompetent in accordance with applicable law, to
perform any such act or acts or to exercise any such right, power, duty or
obligation. No permissive power or authority available to the Guarantee Trustee
shall be construed to be a duty.

         SECTION 3.3       Compensation; Indemnity; Fees.

         The Guarantor agrees:

                  (a) to pay to the Guarantee Trustee from time to time such
reasonable compensation for all services rendered by it hereunder as may be
agreed in writing by the Guarantor and the Guarantee Trustee from time to time
(which compensation shall not be limited by any provision of law in regard to
the compensation of a trustee of an express trust);

                  (b) except as otherwise expressly provided herein, to
reimburse the Guarantee Trustee upon request for all reasonable expenses,
disbursements and advances incurred or made by the Guarantee Trustee in
accordance with any provision of this Guarantee Agreement (including the
reasonable compensation and the expenses and disbursements of its agents and
counsel), except any such expense, disbursement or advance as may be
attributable to its negligence, bad faith or willful misconduct; and

                  (c) to indemnify the Guarantee Trustee for, and to hold it
harmless against, any loss, liability, claim, damage or expense incurred without
negligence, willful misconduct or bad faith on the part of the Guarantee
Trustee, arising out of or in connection with the acceptance or administration
of this Guarantee Agreement, including the costs and expenses of defending
itself against any claim or liability in connection with the exercise or
performance of any of its powers or duties hereunder.

The Guarantee Trustee will not claim or exact any lien or charge on any
Guarantee Payments as a result of any amount due to it under this Guarantee
Agreement. The provisions of this Section 3.3 shall survive the termination of
this Guarantee Agreement or the resignation or removal of the Guarantee Trustee.

                                      -10-

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                                   ARTICLE IV

                                GUARANTEE TRUSTEE

         SECTION 4.1       Guarantee Trustee; Eligibility.

         (a) There shall at all times be a Guarantee Trustee which shall:

                  (i) not be an Affiliate of the Guarantor; and

                  (ii) be a Person that is eligible pursuant to the Trust
         Indenture Act to act as such and has a combined capital and surplus of
         at least $50,000,000, and shall be a corporation meeting the
         requirements of Section 310(a) of the Trust Indenture Act. If such
         corporation publishes reports of condition at least annually, pursuant
         to law or to the requirements of its supervising or examining
         authority, then, for the purposes of this Section 4.1 and to the extent
         permitted by the Trust Indenture Act, the combined capital and surplus
         of such corporation shall be deemed to be its combined capital and
         surplus as set forth in its most recent report of condition so
         published.

         (b) If at any time the Guarantee Trustee shall cease to be eligible to
so act under Section 4.1(a), the Guarantee Trustee shall immediately resign in
the manner and with the effect set out in Section 4.2.

         (c) If the Guarantee Trustee has or shall acquire any "conflicting
interest" within the meaning of Section 310(b) of the Trust Indenture Act, the
Guarantee Trustee and Guarantor shall in all respects comply with the provisions
of Section 310(b) of the Trust Indenture Act.

         SECTION 4.2       Appointment, Removal and Resignation of the Guarantee
Trustee.

         (a) Subject to Section 4.2(b), the Guarantee Trustee may be appointed
or removed without cause at any time by the Guarantor.

         (b) The Guarantee Trustee shall not be removed until a Successor
Guarantee Trustee has been appointed and has accepted such appointment by
written instrument executed by such Successor Guarantee Trustee and delivered to
the Guarantor and the retiring Guarantee Trustee.

         (c) The Guarantee Trustee appointed hereunder shall hold office until a
Successor Guarantee Trustee shall have been appointed or until its removal or
resignation. The Guarantee Trustee may resign from office (without need for
prior or subsequent accounting) by an instrument in writing executed by the
Guarantee Trustee and delivered to the Guarantor, which resignation shall not
take effect until a Successor Guarantee Trustee has been appointed and has
accepted such appointment by instrument in writing executed by such Successor
Guarantee Trustee and delivered to the Guarantor and the resigning Guarantee
Trustee.

                                      -11-

<PAGE>

         (d) In case of the appointment hereunder of a Successor Guarantee
Trustee, such Successor Guarantee Trustee so appointed shall execute,
acknowledge and deliver to the Guarantor and to the retiring Guarantee Trustee
an instrument accepting such appointment, and thereupon the resignation or
removal of the retiring Guarantee Trustee shall become effective and such
Successor Guarantee Trustee, without any further act, deed or conveyance, shall
become vested with all the rights, powers, trusts and duties of the retiring
Guarantee Trustee; but, on the request of the Guarantor or the Successor
Guarantee Trustee, such retiring Guarantee Trustee shall, upon payment of its
charges, execute and deliver an instrument transferring to such Successor
Guarantee Trustee all the rights, powers and trusts of the retiring Guarantee
Trustee.

         (e) If no Successor Guarantee Trustee shall have been appointed and
accepted appointment as provided in this Section 4.2 within 60 days after
delivery to the Guarantor of an instrument of resignation, the resigning
Guarantee Trustee may petition, at the expense of the Guarantor, any court of
competent jurisdiction for appointment of a Successor Guarantee Trustee. Such
court may thereupon, after prescribing such notice, if any, as it may deem
proper, appoint a Successor Guarantee Trustee.

         (f) If at any time:

                  (i) the Guarantee Trustee shall fail to comply with Section
         2.8 after written request therefor by the Guarantor or by any Holder
         who has been a bona fide Holder of a Capital Security for at least six
         months, or

                  (ii) the Guarantee Trustee shall cease to be eligible under
         Section 4.1 and shall fail to resign after written request therefor by
         the Guarantor or by any such Holder, or

                  (iii) the Guarantee Trustee shall become incapable of acting
         or shall be adjudged bankrupt or insolvent or a receiver of the
         Guarantee Trustee or of its property shall be appointed or any public
         officer shall take charge or control of the Guarantee Trustee or of its
         property or affairs for the purpose of rehabilitation, conservation or
         liquidation,

then, in any such case, (A) the Guarantor may remove the Guarantee Trustee, or
(B) subject to Section 4.3, any Holder who has been a bona fide Holder of a
Capital Security for at least six months may, on behalf of himself and all
others similarly situated, petition any court of competent jurisdiction for the
removal of the Guarantee Trustee and the appointment of a Successor Guarantee
Trustee.

         SECTION 4.3       Undertaking for Costs.

         In any suit for the enforcement of any right or remedy under this
Guarantee Agreement, or in any suit against the Guarantee Trustee for any action
taken, suffered or omitted by it as Guarantee Trustee, a court may require any
party litigant in such suit to file an undertaking to pay the costs of such
suit, and may assess reasonable costs against any such party litigant, in the
manner and to the extent provided in the Trust Indenture Act; provided that
neither this Section

                                      -12-

<PAGE>

nor the Trust Indenture Act shall be deemed to authorize any court to require
such an undertaking or to make such an assessment in any suit instituted by the
Guarantor.

                                    ARTICLE V

                                    GUARANTEE

         SECTION 5.1       Guarantee.

         The Guarantor absolutely, unconditionally and irrevocably guarantees,
on a subordinated basis as set forth in Article VI, to the Holders the prompt
payment when due, subject to any applicable grace period, the Guarantee Payments
(without duplication of amounts theretofore paid by or on behalf of the Issuer
Trust). The Guarantor's obligation to make a Guarantee Payment may be satisfied
by direct payment of the required amounts by the Guarantor to the Holders or by
causing the Issuer Trust to pay such amounts to the Holders.

         SECTION 5.2       Nature of Guarantee.

         The Guarantor's obligations hereunder shall not be affected by any
circumstance relating to the Guarantee Payments that might constitute a legal or
equitable discharge of or defense to the Guarantor not available to the Issuer
Trust. The Guarantor agrees that the Holders may resort to the Guarantor for
payment of the Guarantee Payments whether or not the Holders shall have
proceeded against the Issuer Trust. The Holders shall not be obligated to file
any claim relating to the Guarantee Payments in the event that the Issuer Trust
becomes subject to a bankruptcy, reorganization or similar proceeding, and the
failure of the Holders to so file shall not affect the Guarantor's obligations
hereunder. This Guarantee shall remain in full force and effect and shall be
binding on the Guarantor, its successors and assigns until the Guarantee
Payments have been satisfied in full. In the event that any payment to the
Holders in respect of the Guarantee Payments is rescinded or must otherwise be
returned for any reason whatsoever, the Guarantor shall remain liable hereunder
with respect to such Guarantee Payments as if such payments had not been made.
The Guarantor reserves the right to (a) set-off against any payment owing
hereunder any amounts owing by the Holders to the Issuer Trust and (b) assert
defenses which the Issuer Trust may have to payment of the Guarantee Payments
other than defenses arising from the bankruptcy or insolvency of the Issuer
Trust and other defenses expressly waived hereby.

         SECTION 5.3       Changes in Obligations and Agreements Relating
thereto; Waiver of Certain Notices.

         The Guarantor agrees that the Holders may at any time and from time to
time, either before or after the maturity thereof, without notice to or further
consent of the Guarantor, extend the time of payment by the Issuer Trust of all
or any portion of the Distributions (other than an extension of time for payment
of Distributions that results from the extension of any interest payment period
on the Junior Subordinated Debentures as provided in the Indenture),

                                      -13-

<PAGE>

Redemption Price, Liquidation Distribution or any other sums payable under the
terms of the Capital Securities or the extension of time for the performance of
any other obligation under, arising out of, or in connection with, the Capital
Securities, and may also make any agreement with the Issuer Trust or with any
other party to or person liable on any of the Guarantee Payments or interested
therein, in accordance with the Trust Agreement, for the extension, renewal,
payment, compromise, discharge or release thereof, in whole or in part, or for
any modification of the terms thereof or of any agreement between the Holders
and the Issuer Trust or any such other party or person, without in any way
impairing or affecting this Guarantee. The Guarantor waives notice of the
acceptance of this Guarantee and of the Guarantee Payments, presentment, demand
for payment, notice of dishonor and protest.

         SECTION 5.4       Rights of Holders.

         The Guarantor expressly acknowledges that: (i) this Guarantee Agreement
will be deposited with the Guarantee Trustee to be held for the benefit of the
Holders; (ii) the Guarantee Trustee has the right to enforce this Guarantee
Agreement on behalf of the Holders; (iii) the Holders of a Majority in
Liquidation Amount of the Capital Securities have the right to direct the time,
method and place of conducting any proceeding for any remedy available to the
Guarantee Trustee in respect of this Guarantee Agreement or exercising any trust
or power conferred upon the Guarantee Trustee under this Guarantee Agreement;
and (iv) any Holder may institute a legal proceeding directly against the
Guarantor to enforce its rights under this Guarantee Agreement without first
instituting a legal proceeding against the Guarantee Trustee, the Issuer Trust
or any other Person.

         SECTION 5.5       Subrogation.

         Upon payment in respect of any amounts paid to the Holders by the
Guarantor under this Guarantee Agreement, the Guarantor shall be subrogated to
the rights of the Holders against the Issuer Trust in respect of such amounts
paid, and the Holders will be deemed to agree to take at the Guarantor's expense
such steps as the Guarantor may reasonably request to implement such
subrogation.

         SECTION 5.6       No Waiver; Cumulative Rights.

         No failure on the part of the Holders to exercise, and no delay in
exercising, any right, remedy or power hereunder shall operate as a waiver
thereof, nor shall any single or partial exercise by the Holders of any right,
remedy or power hereunder preclude any other or future exercise of any right,
remedy or power. Each and every right, remedy and power hereby granted to the
Holders or allowed by law or other agreement shall be cumulative and not
exclusive of any other, and may be exercised by the Holders at any time or from
time to time.

                                      -14-

<PAGE>

                                   ARTICLE VI

                           COVENANTS AND SUBORDINATION

         SECTION 6.1       Subordination.

         The obligations of the Guarantor under this Guarantee Agreement will
constitute unsecured obligations of the Guarantor and will rank subordinate and
junior in right of payment to all Senior Debt (as defined in the Indenture) of
the Guarantor to the extent and in the manner set forth in the Indenture with
respect to the Junior Subordinated Debentures, and the provisions of Article
XIII of the Indenture will apply, mutatis mutandis, to the obligations of the
Guarantor hereunder. The obligations of the Guarantor hereunder do not
constitute Senior Debt (as defined in the Indenture) of the Guarantor.

         SECTION 6.2       Pari Passu Guarantees.

         The obligations of the Guarantor under this Guarantee Agreement shall
rank pari passu with the obligations of the Guarantor under (i) any similar
guarantee agreements issued by the Guarantor on behalf of the holders of
preferred or capital securities issued by any Issuer Trust (as defined in the
Indenture), (ii) the Indenture and the Securities (as defined therein) issued
thereunder; (iii) the Expense Agreement (as defined in the Trust Agreement) and
any similar expense agreements entered into by the Guarantor in connection with
the offering of Capital Securities (as defined in the Indenture) by any Issuer
Trust (as defined in the Indenture), and (iv) any other security, guarantee or
other agreement or obligation that is expressly stated to rank pari passu with
the obligations of the Guarantor under this Guarantee Agreement or with any
obligation that ranks pari passu with the obligations of the Guarantor under
this Guarantee Agreement.

                                   ARTICLE VII

                                   TERMINATION

         SECTION 7.1       Termination.

         This Guarantee Agreement shall terminate and be of no further force and
effect upon (i) full payment of the Redemption Price (as defined in the Trust
Agreement) of all Capital Securities, (ii) the distribution of Junior
Subordinated Debentures to the Holders in exchange for all of the Capital
Securities or (iii) full payment of the amounts payable in accordance with
Article IX of the Trust Agreement upon liquidation of the Issuer Trust.


                                      -15-

<PAGE>
                                  ARTICLE VIII

                                 MISCELLANEOUS

         SECTION 8.1       Successors and Assigns.

         All guarantees and agreements contained in this Guarantee Agreement
shall bind the successors, assigns, receivers, trustees and representatives of
the Guarantor and shall inure to the benefit of the Holders of the Capital
Securities then outstanding. Except in connection with a consolidation, merger
or sale involving the Guarantor that is permitted under Article VIII of the
Indenture and pursuant to which the successor or assignee agrees in writing to
perform the Guarantor's obligations hereunder, the Guarantor shall not assign
its obligations hereunder, and any purported assignment other than in accordance
with this provision shall be void.

         SECTION 8.2       Amendments.

         Except with respect to any changes that do not adversely affect the
rights of the Holders in any material respect (in which case no consent of the
Holders will be required), this Guarantee Agreement may only be amended with the
prior approval of the Holders of not less than a Majority in Liquidation Amount
of the Capital Securities. The provisions of Article VI of the Trust Agreement
concerning meetings of the Holders shall apply to the giving of such approval.

         SECTION 8.3       Notices.

         Any notice, request or other communication required or permitted to be
given hereunder shall be in writing, duly signed by the party giving such
notice, and delivered, telecopied or mailed by first class mail as follows:

         (a) if given to the Guarantor, to the address or telecopy number set
forth below or such other address or telecopy number as the Guarantor may give
notice to the Guarantee Trustee and the Holders:

                  American International Group, Inc.
                  70 Pine Street
                  New York, NY 10270
                  Attention: Secretary

         (b) if given to the Guarantee Trustee, at the address or telecopy
number set forth below or such other address or telecopy number as the Guarantee
Trustee may give notice to the Guarantor and the Holders:

                  The Bank of New York
                  101 Barclay Street
                  New York, NY 10286
                  Attention: Corporate Trust Administration

                                      -16-

<PAGE>

         with a copy to:

                  AIG Capital Trust ( )
                  American International Group, Inc.
                  70 Pine Street
                  New York, NY 10270
                  Attention: Secretary

         (c) if given to any Holder, at the address set forth on the books and
records of the Issuer Trust.

         All notices hereunder shall be deemed to have been given when received
in person, telecopied with receipt confirmed, or mailed by first class mail,
postage prepaid, except that if a notice or other document is refused delivery
or cannot be delivered because of a changed address of which no notice was
given, such notice or other document shall be deemed to have been delivered on
the date of such refusal or inability to deliver. In any case where notice to a
Person is given by mail, neither the failure to mail such notice, nor any defect
in any notice so mailed, shall affect the sufficiency of such notice with
respect to any other Person.

         SECTION 8.4       Benefit.

         This Guarantee Agreement is solely for the benefit of the Holders and
is not separately transferable from the Capital Securities.

         SECTION 8.5       Governing Law.

         This Guarantee Agreement shall be governed by and construed in
accordance with the laws of the State of New York.

         SECTION 8.6       Counterparts.

         This instrument may be executed in any number of counterparts, each of
which so executed shall be deemed to be an original, but all such counterparts
shall together constitute but one and the same instrument.

                                      -17-

<PAGE>

         IN WITNESS WHEREOF, the parties hereto have executed this Guarantee
Agreement as of the day and year first above written.

                                                AMERICAN INTERNATIONAL
                                                GROUP, INC., as Guarantor

                                                By: ____________________________
                                                Name:
                                                Title:

                                                THE BANK OF NEW YORK,
                                                as Guarantee Trustee

                                                By: ____________________________
                                                Name:
                                                Title: