GPT-5 Codex
OpenAI
63.0#70 of 427 overall
- Input / output
- US$ 1,25 / US$ 10,00 US$ per 1M tokens
- Context
- — tokens
- Release
- 09/23/2025 release date
- Weights
- —
- Speed
- 0 tok/s first token in 0.00 s
Family history
The 4 versions of this family, from first to newest, by release date. Click a point to open that version.
See the data as a table
| Model | Released | Score | Rank | Elo Arena |
|---|---|---|---|---|
| GPT-5 Codex | 09/23/2025 | 63.0 | #70 | — |
| GPT-5.1-Codex-Max | 12/04/2025 | 47.0 | #178 | — |
| GPT-5.2-Codex | 01/14/2026 | 50.8 | #141 | — |
| GPT-5.3-Codex | 02/24/2026 | 58.9 | #85 | — |
Scores by source
Scores by sourcepercentile = % of ranked models it beats| Metric | Value | Percentile | Source |
|---|---|---|---|
| Humanity's Last Exam weight 1 | 27.8 | 76% | Artificial Analysis |
| GPQA Diamond | 83.7 | 74% | Artificial Analysis |
| Long-context reasoning | 71.7 | 65% | Artificial Analysis |
By category
| Category | Score | Rank | Metrics |
|---|---|---|---|
| Reasoning | 66.6 | #97 | Humanity's Last Exam, GPQA Diamond |
| Research | 57.6 | #116 | Long-context reasoning |
History
RankingIA score on each collection day (hover to see the rank).
Daily collection started on 10/30/2026. The chart appears from the second day the model is ranked.