AI News — May 21, 2026: o3 Fills 125 Pages to Kill Erdős Conjecture, OpenAI Files S-1 at $850B

OpenAI o3 disproves an Erdős conjecture with 125 pages of reasoning, while OpenAI files for IPO at 850B valuation and Cohere returns with an open-weights MoE model.

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AI News — May 21, 2026: o3 Fills 125 Pages to Kill Erdős Conjecture, OpenAI Files S-1 at $850B

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