Claude Opus 4 and Claude Sonnet 4, Anthropic's latest generation of frontier AI models, were announced Thursday.

Anthropic has long been warning about these risks—so much so that in 2023, the company pledged to not release certain models ...

Under Anthropic’s Responsible Scaling Policy (RSP), ASL-3 mandates heightened defences against deployment misuse, primarily CBRN, and security threats from sophisticated non-state actors.

making it the highest risk model Anthropic has released to date based on its Responsible Scaling Policy. After the morning keynote, journalists were ushered from the dark auditorium to a sunny ...

“(Anthropic’s Responsible Scaling Policy) allows us to err on the side of caution and deploy a model under a higher standard than we are sure is needed.” Apollo Research, a third-party ...

“(Anthropic’s Responsible Scaling Policy) allows us to err on the side of caution and deploy a model under a higher standard than we are sure is needed.” Apollo Research, a third-party safety group, ...