GPT-5.3 Codex benchmark ranking on every AI leaderboard
closed weights · top 10 on 1 of 5 · released Feb 5, 2026
| Rank | Board | Score | |||
|---|---|---|---|---|---|
| 5 |  AA SpeedSpeed · as “GPT-5.3 Codex (xhigh)” | Speed | 145 tok/s | 24 | |
| 16 |  Epoch ECIReasoning · as “GPT-5.3 Codex” | Reasoning | 156.8 | 100 | |
| 23 | AA PricePrice · as “GPT-5.3 Codex (xhigh)” | Price | $4.81 | 27 | |
| 27 | AA IntelligenceReasoning · as “GPT-5.3 Codex (xhigh)” | Reasoning | 32.5 | 100 | |
| 61 |  WebDev ArenaCoding · as “gpt-5.3-codex (codex-harness)” | Coding | 1,409 | 100 |
Category ranks and more models
Sources: each leaderboard's own published results page, captured every day at 04:30 UTC. Scores exactly as each board published them; we run no evaluations. Logos via logo.dev; trademarks belong to their owners.