Claude Opus 4, Claude Sonnet 4
Anthropic
rich detail 25 method fields published
Evaluation
ASL-4 expert red teaming (bioweapons)
whether the model can uplift experts in bioweapon ideation and design (ASL-4-level)
How it was run
Open a release to see the setup, scoring, and other details that the lab published. Only fields the lab actually disclosed are shown.