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Sourced AI briefs in publish order — newest first. Citeable originals live on the homepage under From Signal Desk.

AISep 8, 2026OpenAI

On the Navier–Stokes Millennium Prize Problem

OpenAI says an internal multi-agent system—stronger than GPT-6 Astra—produced a Lean-checked singularity proof for Navier–Stokes statements C and D, and it will not claim the Millennium Prize.

AISep 6, 2026OpenAI

Supporting independent journalism in Ukraine

OpenAI, WAN-IFRA, and Ukraine's independent regional press association are packaging AI training, hands-on pilots, and API credits as wartime newsroom infrastructure.