166155–177Index score#29 of 229 models
8/ 8Core tests taken6 of 6 areas · plus 22 anchor tests
−4Versus the frontier at releasebest then: GPT-5.3-Codex
$2.0/ $12Price per million tokensinput / output, list price
1.05MContext 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
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.