o1
o1 is an API-only (closed weights) language model from OpenAI, released December 17, 2024. The context window is 195K tokens. On the Epoch Capabilities Index it scores 141.2, rank 117 of 256 rated models. API price: $15 input / $60 output per million tokens.
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Lab
OpenAI
Released
December 17, 2024
Weights
API-only (closed weights)
Parameters
–
Context
195K
Price / M tokens
$15 / $60 in / out
Epoch ECI
141.2 #117
Strengths by category
ModelTape's 0–100 fit on Epoch AI benchmark results.
| Category | Score | Based on |
|---|---|---|
| Reasoning | 9.6 | Chess Puzzles, SimpleBench, Humanity's Last Exam |
| Math | 32.1 | MATH level 5, OTIS Mock AIME 2024-2025, FrontierMath-Tiers-1-3-v2-Private |
| Knowledge | 65.1 | GPQA diamond, SimpleQA Verified |
Benchmark results
| Benchmark (Epoch AI) | Score |
|---|---|
| MATH level 5 | 94.7% |
| OTIS Mock AIME | 73.3% |
| GPQA Diamond | 71.9% |
| Aider Polyglot | 61.7% |
| SimpleQA Verified | 41.1% |
| SimpleBench | 28.1% |
| FrontierMath (Tiers 1–3) | 15.5% |
| Humanity's Last Exam | 8.0% |
| Chess Puzzles | 6.4% |
Links
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