# GPT-5.2 Pro vs Mistral Medium 3.1

> GPT-5.2 Pro is the stronger model overall, scoring 52.2 to 31.5 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.

- Canonical page: https://noometry.com/compare/gpt-5-2-pro-vs-mistral-medium-3-1
- Last updated: 2026-10-10
- Shared benchmarks: 1

## Summary

- 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 51.8 to 10.1.
- 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.

## Snapshot

| | GPT-5.2 Pro | Mistral Medium 3.1 |
|---|---|---|
| Provider | OpenAI | Mistral AI |
| Noometry Index | 52.2 | 31.5 |
| Rank | 34 | 260 |
| Context | 400K | 131K |
| Input $/M | $21 | $0.40 |
| Output $/M | $168 | $2 |
| Weights | Proprietary | Proprietary |

## Reasoning

- GPT-5.2 Pro: 51.8 (#31)
- Mistral Medium 3.1: 10.1 (#336)

| 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 | 155.41 | — |

## Math

- GPT-5.2 Pro: 64.8 (#23)
- 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

- GPT-5.2 Pro: —
- Mistral Medium 3.1: 55.6 (#140)

| Benchmark | GPT-5.2 Pro | Mistral Medium 3.1 |
|---|---|---|
| EQ-Bench Creative Writing | — | 1476 |

## FAQ

### Is GPT-5.2 Pro better than Mistral Medium 3.1?

GPT-5.2 Pro is the stronger model overall, scoring 52.2 to 31.5 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.