granite-4.0-1b

A Core AI bundle of ibm-granite/granite-4.0-1b for the Aether SDK (iOS and macOS 27+).

• Source: ibm-granite/granite-4.0-1b at revision 6a7381ba1f54d684ff508d991aeb7dc580157103, licence Apache-2.0. The licence is included as LICENSE. ibm-granite/granite-4.0-1b declares apache-2.0 in its model card but ships no licence file; LICENSE is the canonical text from apache.org.
• Changes from the source: converted from PyTorch to Core AI (.aimodel) by Aether forge (recipe granite-4.0-1b@2). Weights are int8-linear-perblock32 (8-bit weights). The tokenizer files are the source's own.

Variants

Variant	Platform	Arch	Compute	Compiled	Download
macos-any-gpu	macos	any	gpu	no (specialized on first load)	1.74 GB
ios-any-gpu	ios	any	gpu	no (specialized on first load)	1.74 GB
ios-h18p-gpu	ios	h18p	gpu	yes	1.74 GB

Verification

Every row is a record in verification/ about exactly these bytes (matched by bundle digest). Reference rows are strict T2 passes of the unquantized export on the same fixture, in verification/reference/.

Variant	Tier	Result	Detail	Device	OS build	Compute	Record
ios-any-gpu	T0	pass		iPhone18,2	24A437	target	70a17ed2
ios-any-gpu	T2	pass	19/19 strict; profile quantized-8bit; fixture aa4c544dc96a983e	iPhone18,2	24A437	target	29cba282
ios-h18p-gpu	T0	pass		iPhone18,2	24A437	target	8bba98be
ios-h18p-gpu	T2	pass	19/19 strict; profile quantized-8bit; fixture aa4c544dc96a983e	iPhone18,2	24A437	target	b28eeafc
macos-any-gpu	T0	pass		Mac17,6	26A428	target	e9b192a2
macos-any-gpu	T1	pass		Mac17,6	26A428	target	e510b868
macos-any-gpu	T2	pass	19/19 strict; 19/19 strict; profile quantized-8bit; fixture aa4c544dc96a983e	Mac17,6	26A428	target	14c59d9c
unquantized reference (not published)	T2	pass	19/19 strict; 19/19 strict; profile strict; fixture aa4c544dc96a983e	Mac17,6	26A428	target	4c32f671

The quantized profile also requires: T2 strict on the unquantized reference export (met by the reference row).

Use

aether run granite-4.0-1b --prompt "Hello"

import Aether

let aether = try Aether()
let chat = try await aether.chat("granite-4.0-1b")
let reply = try await chat.respond(to: "Hello")
print(reply.text)