Pulse Daily — Saturday, September 5, 2026

[YOU] on AI · Daily · Sep 5, 2026 · 16m

On Saturday, September 5, 2026, AI history was made as Anthropic announced Claude's autonomous Lean 4 formalization of Fermat's Last Theorem, while OpenAI's Astra model sparked a safety debate over 'recurrent depth' architecture, SoundHound closed its LivePerson acquisition, Sony and Warner's music copyright suit against Anthropic escalated, McKinsey revealed a seismic build-vs-buy shift, Nvidia chips quietly brokered geopolitical peace, and consumer robotics arrived in force at IFA Berlin. Stories: Claude Writes the First Machine-Checked Proof of Fermat's Last Theorem · OpenAI's Astra Uses…