Anthropic sets out its position on open-weight models

Anthropic published its position on open-weight AI models on 27 July 2026. Chief executive Dario Amodei said open-weight models without dangerous capabilities are a public good; the company backed chip export limits and mandatory safety testing rather than a ban.

Why it mattered A closed-weight laboratory declined to argue for restricting open weights as a category, at a point when Chinese laboratories were releasing increasingly capable open models.