--- license: cc-by-4.0 tags: - glyph-cluster - stealth-model - stealthmark - coding - reasoning - long-context - tool-use thumbnail: https://stealthmodels.com/glyph-cluster/assets/social-card-v2.png --- Glyph Cluster: four colorful glyph characters fitting together like a block puzzle, with its 256K context. **Glyph Cluster counts tokens exactly like Microsoft's MAI Thinking 1, on all 24 of our test phrases. That's our lead for who made it.** By [Stealth Models](https://stealthmodels.com/). StealthMark 1.8.10 results for Glyph Cluster: benchmark score 18.9, General Intelligence 12.0, Visual Intelligence 29.8. Strongest at composing a whole scene: 46.3 on Beach. Every StealthMark result of Glyph Cluster: Beach 46.3, Raccoon 35.7, Selfie 32.4, Ground Truth 19.9, Newton's Mirror 12.8, Mona Lisa 11.7, Foresight 6.4, Latch 3.6. [Compare it with MAI Thinking 1](https://stealthmodels.com/compare/glyph-cluster-vs-mai-thinking-1) The case file. First seen 7 Oct 2026, revealed not yet, developer unknown, context 256K tokens, input Text only, tool calls Yes (function calling), speed in our tests about 69 tok/s. 9 Oct 2026, our finding: Our lead: Microsoft’s MAI. Its token counts and its Newton’s Mirror failures match MAI Thinking 1. 25 Oct 2026, our finding: Iceman Contributor counts tokens exactly like Glyph Cluster: one tokenizer family behind both. [See our verdict](https://stealthmodels.com/glyph-cluster#identity-verdict)
Facts as text | Fact | Value | |---|---| | First seen | 7 Oct 2026 | | Revealed | not yet | | Developer | unknown | | Context | 256K tokens | | Input | Text only | | Tool calls | Yes (function calling) | | Speed in our tests | about 69 tok/s | | Access | Active as a free preview; prompts may be retained for training |
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Text and images: CC BY 4.0, stealthmodels.com.