o3 Mini on MMLU-Pro: score, rank and what it means
o3 Mini scores 76.6 on MMLU-Pro, placing it #290 of 600 models in the index. The benchmark average is 73.5 and the leader is GPT-5.2 Pro at 91.6.
Score distribution
The chart shows the top 10 models on MMLU-Pro, with o3 Mini highlighted. Longer bars mean higher scores.
Top 10 leaderboard
| # | Model | Provider | Context | Input / 1M | Avg score |
|---|---|---|---|---|---|
| 1 | GPT-5.2 Pro | OpenAI | 2000000 | $21.32 | 89.6 |
| 2 | GPT-5.1 Max | OpenAI | 2000000 | $20.50 | 87.9 |
| 3 | Claude Opus 4.5 Pro | Anthropic | 200000 | $20.98 | 89.1 |
| 4 | Claude Opus 4.5 Reasoning | Anthropic | 2000000 | $20.91 | 88.2 |
| 5 | Gemini 3 Pro Reasoning | Google DeepMind | 200000 | $19.69 | 87.5 |
| 6 | GPT-5.1 Reasoning | OpenAI | 400000 | $20.27 | 88.3 |
| 7 | GPT-5.2 | OpenAI | 2000000 | $19.71 | 88.0 |
| 8 | Claude Opus 4.5 Max | Anthropic | 1000000 | $20.90 | 87.8 |
| 9 | GPT-5.2 Vision | OpenAI | 1000000 | $19.03 | 87.4 |
| 10 | Gemini 3 Pro Max | Google DeepMind | 2000000 | $20.57 | 87.9 |
What this score means
On MMLU-Pro, o3 Mini sits at #290 of 600. The leader, GPT-5.2 Pro, scores 91.6, so the gap to the top is 15.0 points. The median model in this index scores 76.1, which puts o3 Mini above the midpoint.
OpenAI models average 84.4 on this benchmark. o3 Mini is 7.8 points below that provider line, so it is a weaker result than the average OpenAI model.
Among multimodal models, the average is 80.0. o3 Mini is 3.4 points below that group. This is the more useful comparison if you are shortlisting within the same tier rather than across the whole index.
Read a 76.6 as a relative signal, not an absolute guarantee. Benchmark scores depend on prompt format, evaluation harness and contamination controls. Use this page to narrow the shortlist, then test the model on your own data.
Price context
At $10.68 per million input tokens, o3 Mini is above the median input price of $4.00 across the 600 models scored on MMLU-Pro. The models immediately around it in the ranking are shown below so you can compare score and price together.
| Model | Provider | Context | Input / 1M | Avg score |
|---|---|---|---|---|
| Mistral Small 3 Chat | Mistral AI | 200000 | $3.54 | 73.7 |
| Auto Pro | OpenRouter | 8192 | $8.41 | 71.2 |
| Llama 3 Modal Base | Modal | 16384 | $3.21 | 72.2 |
| Phi-4 Instruct | Microsoft | 128000 | $3.79 | 75.3 |
| o3 Mini | OpenAI | 128000 | $10.68 | 76.2 |
| Llama 3 Novita Chat | Novita AI | 65536 | $3.50 | 74.2 |
| Nemotron 4 Base | NVIDIA | 8192 | $3.29 | 73.0 |
Other benchmarks for o3 Mini
| Benchmark | Score | Rank | Percentile | Relative |
|---|---|---|---|---|
| GPQA Diamond | 71.9 | 222 | 63th | |
| SWE-bench Verified | 63.4 | 247 | 59th | |
| HumanEval | 81.5 | 200 | 67th | |
| MATH-500 | 81.2 | 188 | 69th | |
| AIME 2025 | 69.8 | 263 | 56th | |
| LiveCodeBench | 70.7 | 178 | 70th | |
| IFEval | 82.7 | 255 | 58th | |
| TruthfulQA | 79.6 | 199 | 67th | |
| HellaSwag | 86.4 | 203 | 66th | |
| MMMU | 74.0 | 193 | 68th | |
| Arena Elo | 1394.3 | 232 | 61th |
FAQ
What score does o3 Mini get on MMLU-Pro?
o3 Mini scores 76.6 on MMLU-Pro in this index. The benchmark average is 73.5 and the top score is 91.6.
How does o3 Mini rank on MMLU-Pro?
It ranks #290 of 600 models, in the 52nd percentile. The leader is GPT-5.2 Pro at 91.6.
Is o3 Mini good at MMLU-Pro?
Yes, relative to the index: it is above the median and inside the top half of scores. The result should be read alongside its price and context window.
How is the MMLU-Pro score calculated?
MMLU-Pro is a knowledge benchmark. Scores in this index are modelled estimates on a 0–100 scale (or Elo for Arena), derived from capability tier and benchmark difficulty. They are not official leaderboard results.
What does o3 Mini cost?
o3 Mini costs $10.68 per million input tokens and $45.84 per million output tokens.