Model comparison
GPT-5.2 Pro vs Mistral Medium 3.1
GPT-5.2 Pro is the stronger model overall, scoring 52.3 to 31.9 on the Noometry Index. Mistral Medium 3.1 costs 72× less per token, which makes it the better buy when GPT-5.2 Pro's lead doesn't matter for your workload.
Last verified . 1 shared benchmarks.
Mistral AISummary
- They share 1 benchmark with published results for both. GPT-5.2 Pro scores higher in 1 category and Mistral Medium 3.1 in 0 categories; one gap is clear of the uncertainty.
- The widest gap is in reasoning, where GPT-5.2 Pro leads 51.5 to 10.6.
- The biggest single-benchmark swing is NYT Connections (extended): 79.3% for GPT-5.2 Pro and 6.5% for Mistral Medium 3.1.
- Mistral Medium 3.1 is cheaper at $0.40 / $2 per million input/output tokens, against $21 / $168 for GPT-5.2 Pro.
- GPT-5.2 Pro accepts more context: 400K tokens versus 131K.
Side by side
| GPT-5.2 Pro | Mistral Medium 3.1 | |
|---|---|---|
| Provider | OpenAI | Mistral AI |
| Noometry Index | 52.3 | 31.9 |
| Released | 2025-12-11 | — |
| Weights | Proprietary | Proprietary |
| Context window | 400K | 131K |
| Max output | 128K | 105K |
| Input $ / M tokens | $21 | $0.40 |
| Output $ / M tokens | $168 | $2 |
| Results tracked | 8 | 3 |
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Category by category
Reasoning GPT-5.2 Pro leads
GPT-5.2 Pro: 51.5 (#33), Mistral Medium 3.1: 10.6 (#341)
| Benchmark | GPT-5.2 Pro | Mistral Medium 3.1 |
|---|---|---|
| NYT Connections (extended) | 79.3% | 6.5% |
| ARC-AGI-2 | 54.2% | — |
| SimpleBench | 57.4% | — |
| ARC-AGI-1 | 90.5% | — |
| Thematic Generalization | — | 20.3% |
| Epoch Capabilities Index | 155.4 | — |
Math Not comparable
GPT-5.2 Pro: 65.3 (#29), Mistral Medium 3.1: —
| Benchmark | GPT-5.2 Pro | Mistral Medium 3.1 |
|---|---|---|
| FrontierMath (Tiers 1-3) | 74% | — |
| FrontierMath Tier 4 | 46% | — |
| FrontierMath Tier 4 (v1) | 31.3% | — |
Writing & Preference Not comparable
GPT-5.2 Pro: —, Mistral Medium 3.1: 55.5 (#145)
| Benchmark | GPT-5.2 Pro | Mistral Medium 3.1 |
|---|---|---|
| EQ-Bench Creative Writing | — | 1476 |
Frequently asked questions
Is GPT-5.2 Pro better than Mistral Medium 3.1?
GPT-5.2 Pro is the stronger model overall, scoring 52.3 to 31.9 on the Noometry Index. Mistral Medium 3.1 costs 72× less per token, which makes it the better buy when GPT-5.2 Pro's lead doesn't matter for your workload.
Which is cheaper, GPT-5.2 Pro or Mistral Medium 3.1?
Mistral Medium 3.1 is cheaper. It lists at $0.40 per million input tokens and $2 per million output tokens; GPT-5.2 Pro lists at $21 and $168.
Which has the bigger context window?
GPT-5.2 Pro does, with 400K tokens against 131K.
How many benchmarks do GPT-5.2 Pro and Mistral Medium 3.1 share?
1 benchmark has published results for both models. GPT-5.2 Pro has 8 scored results on Noometry and Mistral Medium 3.1 has 3.