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Claude's Riemann Advance, Model 2, and OpenRouter — August 17, 2026
A thirty-seven-year record in prime number theory, broken by a Claude research loop in thirty-six hours. Anthropic's risk report revealed a model that outperforms its flagship in internal testing, with no plans to release it. Built and withheld by the same lab. We go through the proof and what Lean verification means, the Model 2 benchmarks and what it looks like when a lab's own tools can't measure what it built, Stripe's seven-billion-dollar bet on AI model routing, and Nvidia cutting its data center backstop by more than half.
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