o1-mini
o1-mini is an API-only (closed weights) language model from OpenAI, released September 12, 2024. On the Epoch Capabilities Index it scores 135.3, rank 140 of 256 rated models.
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Lab
OpenAI
Released
September 12, 2024
Weights
API-only (closed weights)
Parameters
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Context
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Price / M tokens
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Epoch ECI
135.3 #140
Strengths by category
ModelTape's 0–100 fit on Epoch AI benchmark results.
| Category | Score | Based on |
|---|---|---|
| Math | 26.1 | MATH level 5, OTIS Mock AIME 2024-2025, FrontierMath-2025-02-28-Private |
Benchmark results
| Benchmark (Epoch AI) | Score |
|---|---|
| MATH level 5 | 89.2% |
| GPQA Diamond | 51.9% |
| OTIS Mock AIME | 46.9% |
| Aider Polyglot | 32.9% |
| FrontierMath-2025-02-28-Private | 3.0% |
| SimpleBench | 1.7% |
Links
Models with a similar score
GPT-5 nano · DeepSeek-R1 · Qwen3-235B-A22B · Qwen3-30B-A3B-Thinking (Jul 2025) · Qwen3-235B-A22B-Instruct (Jul 2025) · Grok 3 · Qwen3-32B · QwQ-32B
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