OpenAIo1-mini
o1-mini is an OpenAI proprietary reasoning model, released 12 Sept 2024. Its best configuration ranks #497 of 785 on the BenchLeader Index at 46.1 ±6.4, in the lower half. The ± is the point: 383 other configurations score within that range, so they and this one cannot be told apart on quality alone — price and speed are what separate them. It scores highest in maths (53) and lowest in reasoning (36). It has been measured at 3 reasoning-effort settings; this summary describes the best-scoring one, and the tabs above switch between them. Last measured 22 Oct 2026.
- Blended price
- –
- Output speed
- –
- First answer
- –
- Context
- 128k
- Full answer
- –
- Cost per run
- –
- Released
- 12 Sept 2024
- Overall index46
- Reasoning36
- Coding44
- Maths53
- Human preference50
- Composite40
Reasoning-effort configurations
The same model behaves differently depending on how much it is allowed to think. Each row is one setting, scored only on the benchmarks that were run at that setting. “Not stated” collects results from publishers that did not say which setting they used; for a reasoning model that is usually its thinking mode, but we do not assume it. Pick a setting here or at the top of the page to see its price, speed and category scores.
| Effort | Index | Rank | Speed | First answer | Chat reply cost | Categories |
|---|---|---|---|---|---|---|
| medium | 44.4 | #539 | – | – | – | Agents & tools 38 · Coding 41 · Maths 53 · Reasoning 35 |
| high | – | – | – | – | – | Knowledge 56 · Maths 55 · Reasoning 46 |
| not statedbest | 46.1 | #497 | – | – | – | Coding 44 · Composite 40 · Human preference 50 · Maths 53 · Reasoning 36 |
How its index has moved
8 Sept 2026 to 21 Oct 2026- not stated
- medium
The index is recomputed from scratch every day, so a line moves when a new benchmark result lands, when a publisher revises a score, or when the models it is normalised against change. Early movement usually means the score is still settling.
Benchmark results
See all LLM benchmarks. One column per reasoning effort. Rank is among every configuration of every model on that benchmark. Hover a score for the run it came from.
Reasoning
| Benchmark | medium | high | not stated | Source | Trend |
|---|---|---|---|---|---|
| GPQA Diamond | 59.5%#194 | 62.4%#189 | – | Epoch AI Benchmarking Hub | |
| SimpleBench | 18.1%#84 | – | – | SimpleBench | |
| Arena Hard Promptseffort not stated | – | – | 1360#207 | Arena (LMArena) | |
| GPQA Diamond (AA)not in indexeffort not stated | – | – | 60.3%#374 | Artificial Analysis | |
| Humanity's Last Exam (AA)not in indexeffort not stated | – | – | 3.6%#586 | Artificial Analysis | |
| ARC-AGI-1effort not stated | – | – | 14.0%#230 | ARC Prize | |
| ARC-AGI-2effort not stated | – | – | 0.8%#231 | ARC Prize |
Coding
| Benchmark | medium | not stated | Source | Trend |
|---|---|---|---|---|
| WeirdML | 36.3%#124 | – | WeirdML | |
| Arena Codingeffort not stated | – | 1386#208 | Arena (LMArena) | |
| Aider Polygloteffort not stated | – | 32.9%#34 | Aider polyglot leaderboard |
Agents & tools
| Benchmark | medium | not stated | Source | Trend |
|---|---|---|---|---|
| Cybench | 10.0%#15 | – | Cybench | |
| BrowseCompnot in indexeffort not stated | – | 0.9%#19 | OpenAI |
Maths
| Benchmark | medium | high | not stated | Source | Trend |
|---|---|---|---|---|---|
| OTIS Mock AIME | 44.7%#191 | 46.9%#186 | – | Epoch AI Benchmarking Hub | |
| MATH Level 5 | 84.3%#29 | 89.2%#22 | – | Epoch AI Benchmarking Hub | |
| Arena Mathseffort not stated | – | – | 1362#191 | Arena (LMArena) |
Instruction following
| Benchmark | not stated | Source | Trend |
|---|---|---|---|
| Arena Instruction Followingnot in index | 1332#205 | Arena (LMArena) |
Human preference
| Benchmark | medium | not stated | Source | Trend |
|---|---|---|---|---|
| Arena Texteffort not stated | – | 1337#216 | Arena (LMArena) | |
| Arena Creative Writingnot in indexeffort not stated | – | 1281#236 | Arena (LMArena) | |
| Arena Multi-turnnot in indexeffort not stated | – | 1323#221 | Arena (LMArena) | |
| Arena Longer Queriesnot in indexeffort not stated | – | 1344#209 | Arena (LMArena) | |
| Lech Mazur Creative Writingnot in index | 64.9%#36 | – | Lech Mazur |
Composite
| Benchmark | not stated | Source | Trend |
|---|---|---|---|
| Epoch Capabilities Indexnot in index | 135.7#131 | Epoch AI Benchmarking Hub | |
| AA Intelligence Index v4.3.2 | 9.8#391 | Artificial Analysis |
More from OpenAI
See also
Questions people ask
- What are o1-mini's benchmark scores?
- As of 25 Oct 2026, o1-mini scores 46.1 ±6.4 on the BenchLeader Index, strongest in maths (53) and weakest in reasoning (36). That rests on 8 independent benchmark results, and every score on this page links to its publisher.
- How does o1-mini rank?
- o1-mini is #497 of 785 ranked configurations on 25 Oct 2026. 383 other configurations score within its margin, so the exact position matters less than the band. The leader is Claude Opus 5.5 (max effort) at 72.6.
- When was o1-mini released?
- OpenAI released o1-mini on 12 Sept 2024. BenchLeader has results for it at 3 reasoning-effort settings.
Data as of 25 Oct 2026. Compare these configurations.
Cite as: BenchLeader, “o1-mini: benchmarks, pricing, speed and rank”, data as of 25 Oct 2026, https://www.benchleader.com/models/o1-mini.