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license: cc-by-4.0
tags:
- iceman-contributor
- stealth-model
- stealthmark
- coding
- reasoning
- long-context
- tool-use
thumbnail: https://stealthmodels.com/iceman-contributor/assets/social-card.png
---
<img src="https://huggingface.co/stealth-model/iceman-contributor/resolve/main/panels/hero.webp" alt="A boy made of cracked ice lunging beside the name Iceman Contributor, 417 billion tokens on day one, two 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](https://stealthmodels.com/).
<img src="https://huggingface.co/stealth-model/iceman-contributor/resolve/main/panels/verdict.webp" alt="StealthMark 1.8.10 results for Iceman Contributor: benchmark score 19.2, General Intelligence 11.7, Visual Intelligence 31.0. Strongest at composing a whole scene: 46.4 on Beach.">
<img src="https://huggingface.co/stealth-model/iceman-contributor/resolve/main/panels/results.webp" alt="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](https://stealthmodels.com/compare/glyph-cluster-vs-iceman-contributor)
<img src="https://huggingface.co/stealth-model/iceman-contributor/resolve/main/panels/case.webp" alt="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](https://stealthmodels.com/iceman-contributor#tokenizer)
<details><summary>Facts as text</summary>
| 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 |
</details>
## Watch
[](https://www.youtube.com/watch?v=l5hdM8lsPfI)
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[StealthMark leaderboard](https://huggingface.co/spaces/stealth-model/stealthmark)<br>
Text and images: CC BY 4.0, stealthmodels.com.
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