A boy made of cracked ice lunging beside the name Iceman Contributor, 417 billion tokens on day one, two SVG benchmark results and a 23 of 23 tokenizer match.

Iceman Contributor counts tokens exactly like MAI Thinking 1 and Glyph Cluster, on 23 of 23 phrases, and no company has claimed it yet.

By Stealth Models.

StealthMark 1.8.8 results for Iceman Contributor: benchmark score 19.2 out of 100, General Intelligence 11.7, Visual Intelligence 31.0. Strongest at composing a whole scene: 46.4 on Beach.

Every StealthMark result of Iceman Contributor: Beach 46.4, Selfie 39.3, Raccoon 29.8, Ground Truth 20.2, Mona Lisa 19.3, Newton's Mirror 10.1, Latch 3.6, Foresight 3.2.

Compare it with Glyph Cluster

The case file. First seen 24 Oct 2026, revealed not yet, developer unknown, context 262,144 tokens, input Text, tool calls Yes, speed in our tests about 46 tok/s. 24 Oct 2026: Appears without an announcement: about 417 billion tokens on its first full day. 24 Oct 2026: A post on X matches its token counts to Microsoft’s MAI Thinking 1. 25 Oct 2026, our finding: Our test: the same tokenizer family as Glyph Cluster, our MAI lead.

See the token-count test

Facts as text
Fact Value
First seen 24 Oct 2026
Revealed not yet
Developer unknown
Context 262,144 tokens
Input Text
Tool calls Yes
Speed in our tests about 46 tok/s
Access Active; prompts may be used for training

Watch

Iceman Contributor on the same benchmark tasks, and the case for who made it


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Text and images: CC BY 4.0, stealthmodels.com.

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