187176–198Index score#5 of 229 models
4/ 8Core tests taken4 of 6 areas · plus 19 anchor tests
FrontierVersus the frontier at releaseset or matched the recordReplaced by Claude Opus 5.5 $5.0/ $25Price per million tokensinput / output, list price
1MContext windowtokens it reads at once
Where it sitson the frontier
Among the first models to reach this score.
Test resultsby area · tick = best by any model
Reasoning & knowledgeevidence
Humanity's Last Examno result Codingevidence
SWE-bench Verifiedno result Long tasksno evidence yet
METR time horizonno result Independent results from the Epoch AI benchmarking hub, best reasoning setting. The core tests are shown here; anchor tests also inform the score and can be shown above.