Topic

Anthropic in September 2026

Browse Anthropic coverage from September 2026 in Newsroom.

4 stories

September 2026 coverage

Analysis

What the Hugging Face Intrusion and AI Math Claims Actually Show

A source-backed comparison of Claude Mythos security tests, the OpenAI-Hugging Face intrusion, and AI-assisted mathematics separates measured results from broad claims about superintelligence.

All September 2026 coverage

Analysis

Claude’s Fermat Proof Puts the Verification Process in Focus

Anthropic reports that Claude formalized Fermat’s Last Theorem in Lean. The released artifact makes the verification questions concrete: what statement was checked, which assumptions were allowed and who actually ran the checks?