~129117–141Estimated index scoreexpected range · not ranked until independently tested
–Core tests takenno independent results yet
−41Versus the frontier at releasebest then: GPT-5.4
$0.15/ $0.60Price per million tokensinput / output, list price
262KContext windowtokens it reads at once
Where it sitson the frontier
Dashed ring: an estimate until Epoch AI publishes results for this model.
Test resultsby area · tick = best by any model
Reasoning & knowledgeno evidence yet
Humanity's Last Examno result Mathsno evidence yet
FrontierMath T1-3no result Codingno evidence yet
SWE-bench Verifiedno result Novel problemsno evidence yet
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
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
Not in the top three among current models on any category we track.
Where this model places in the top three of today's models, on category leaderboards and on our core tests.