GPT-5.1-Codex-mini
GPT-5.1-Codex-mini.
13
Benchmarks with a score
0
Ranked first, out of five or more models
0
In the top three
OpenAI Nov 2025
GPT-5.1-Codex-mini
Closed weights
No Epoch Capabilities Index score yet
- Terminal-Bench 2.0 61.6% #11 /43
Where it ranks
Its best score on each benchmark, and where that ranks among every model with a score there. We rank each model once, at its best setting.
Knowledge and language
| Benchmark | Score | Rank | Source | |
|---|---|---|---|---|
| DesignArena ASCII Art | 1,100 | #67 of 77 | Official leaderboard |
Coding
| Benchmark | Score | Rank | Source | |
|---|---|---|---|---|
| DesignArena Game Dev | 1,082 | #107 of 143 | Official leaderboard | |
| DesignArena Website | 1,104 | #116 of 151 | Official leaderboard | |
| DesignArena UI Component | 1,072 | #109 of 139 | Official leaderboard | |
| DesignArena Code | 1,084 | #115 of 143 | Official leaderboard | |
| DesignArena Data Visualization | 1,095 | #105 of 118 | Official leaderboard | |
| Code Arena | 1,245 | #116 of 128 | Official leaderboard | |
| DesignArena 3D Design | 971 | #124 of 136 | Official leaderboard | |
| WebDev Arena | 1,247 | #96 of 105 | WebDev Arena Leaderboard, via Epoch AI | |
| DesignArena SVG | 968 | #99 of 103 | Official leaderboard |
Agents and tools
| Benchmark | Score | Rank | Source | |
|---|---|---|---|---|
| SnakeBench | 37 | #6 of 188 | Official leaderboard | |
| Terminal-Bench 2.0 | 61.6% | #11 of 43 | Official leaderboard | |
| LLM Chess | 544 | #40 of 123 | Official leaderboard |