Grok 4.3 Beta
Where it sitson the frontier
GPT-5 reached this score 8 months earlier.
Test resultsby area · tick = best by any model
Independent results from Epoch AI, Vals AI, LiveBench, ARC Prize, Scale AI and other testers, at the model’s best standard setting. The core tests are shown here; anchor tests also inform the score and can be shown above. Hover a bar for who ran it.
What others sayrank on 2 leaderboards
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.
Where to use itprices checked 5 Oct 2026
Provider prices come from OpenRouter's live listing; going direct to a provider can differ. Subscriptions are the lab's own apps.