165153–176Index score#33 of 229 models
3/ 8Core tests taken3 of 6 areas · plus 12 anchor tests
$0.017/ $1.28Price per million tokensinput / output, list price
1.05MContext windowtokens it reads at once
Where it sitson the frontier
Claude Opus 4.6 reached this score 6 months earlier.
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.
What others sayrank on each leaderboard
The Model Indexindependent tests, our method#33of 219 · 165
Further left is better. Leaderboards measure different things: LMArena is people voting blind between two answers, the others are test scores. Click any row for the source.
Best attop three among current models
Replaced by DeepSeek-V4.1-Flash; it no longer leads any category among current models.
Where this model places in the top three of today's models, on category leaderboards and on our core tests.