# GPT-6 Sol vs Mistral Medium 3.1

> GPT-6 Sol is the stronger model overall, scoring 49.2 to 31.5 on the Noometry Index. Mistral Medium 3.1 costs 5.0× less per token, which makes it the better buy when GPT-6 Sol's lead doesn't matter for your workload.

- Canonical page: https://noometry.com/compare/gpt-6-sol-vs-mistral-medium-3-1
- Last updated: 2026-10-10
- Shared benchmarks: 2

## Summary

- They share 2 benchmarks with published results for both. GPT-6 Sol scores higher in 2 categories and Mistral Medium 3.1 in 0 categories; 2 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where GPT-6 Sol leads 49.3 to 10.1.
- The biggest single-benchmark swing is NYT Connections (extended): 90.1% for GPT-6 Sol and 6.5% for Mistral Medium 3.1.
- Mistral Medium 3.1 is cheaper at $0.40 / $2 per million input/output tokens, against $2 / $10 for GPT-6 Sol.
- GPT-6 Sol accepts more context: 1.05M tokens versus 131K.

## Snapshot

| | GPT-6 Sol | Mistral Medium 3.1 |
|---|---|---|
| Provider | OpenAI | Mistral AI |
| Noometry Index | 49.2 | 31.5 |
| Rank | 46 | 260 |
| Context | 1.05M | 131K |
| Input $/M | $2 | $0.40 |
| Output $/M | $10 | $2 |
| Weights | Proprietary | Proprietary |

## Coding

- GPT-6 Sol: 59.6 (#11)
- Mistral Medium 3.1: —

| Benchmark | GPT-6 Sol | Mistral Medium 3.1 |
|---|---|---|
| DeepSWE | 68.8% | — |
| FrontierCode | 49.3% | — |
| LMArena WebDev | 1692 | — |
| LMArena Coding | 1453 | — |

## Agentic & Tool Use

- GPT-6 Sol: 33.5 (#49)
- Mistral Medium 3.1: —

| Benchmark | GPT-6 Sol | Mistral Medium 3.1 |
|---|---|---|
| GDP.pdf | 28% | — |

## Reasoning

- GPT-6 Sol: 49.3 (#34)
- Mistral Medium 3.1: 10.1 (#336)

| Benchmark | GPT-6 Sol | Mistral Medium 3.1 |
|---|---|---|
| NYT Connections (extended) | 90.1% | 6.5% |
| Thematic Generalization | — | 20.3% |
| EBR-Bench | 53.3% | — |
| LMArena Hard Prompts | 1420 | — |

## Math

- GPT-6 Sol: 35.8 (#135)
- Mistral Medium 3.1: —

| Benchmark | GPT-6 Sol | Mistral Medium 3.1 |
|---|---|---|
| LMArena Math | 1404 | — |

## Knowledge

- GPT-6 Sol: 43.0 (#87)
- Mistral Medium 3.1: —

| Benchmark | GPT-6 Sol | Mistral Medium 3.1 |
|---|---|---|
| Vectara Hallucination Rate | 6.5% | — |
| LMArena Expert | 1449 | — |

## Multimodal

- GPT-6 Sol: 47.6 (#9)
- Mistral Medium 3.1: —

| Benchmark | GPT-6 Sol | Mistral Medium 3.1 |
|---|---|---|
| Furniture Assembly | 58.3% | — |

## Multilingual

- GPT-6 Sol: 51.0 (#113)
- Mistral Medium 3.1: —

| Benchmark | GPT-6 Sol | Mistral Medium 3.1 |
|---|---|---|
| LMArena Non-English | 1389 | — |
| LMArena Chinese | 1416 | — |
| LMArena Russian | 1407 | — |
| LMArena Spanish | 1377 | — |

## Instruction Following

- GPT-6 Sol: 74.4 (#97)
- Mistral Medium 3.1: —

| Benchmark | GPT-6 Sol | Mistral Medium 3.1 |
|---|---|---|
| LMArena Instruction Following | 1406 | — |

## Long Context

- GPT-6 Sol: 43.2 (#100)
- Mistral Medium 3.1: —

| Benchmark | GPT-6 Sol | Mistral Medium 3.1 |
|---|---|---|
| LMArena Longer Query | 1415 | — |

## Writing & Preference

- GPT-6 Sol: 72.3 (#15)
- Mistral Medium 3.1: 55.6 (#140)

| Benchmark | GPT-6 Sol | Mistral Medium 3.1 |
|---|---|---|
| EQ-Bench Creative Writing | 2125 | 1476 |
| LMArena Text | 1396 | — |
| LMArena Creative Writing | 1392 | — |
| LMArena Multi-Turn | 1405 | — |

## FAQ

### Is GPT-6 Sol better than Mistral Medium 3.1?

GPT-6 Sol is the stronger model overall, scoring 49.2 to 31.5 on the Noometry Index. Mistral Medium 3.1 costs 5.0× less per token, which makes it the better buy when GPT-6 Sol's lead doesn't matter for your workload.

### Which is cheaper, GPT-6 Sol 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-6 Sol lists at $2 and $10.

### Which has the bigger context window?

GPT-6 Sol does, with 1.05M tokens against 131K.

### How many benchmarks do GPT-6 Sol and Mistral Medium 3.1 share?

2 benchmarks have published results for both models. GPT-6 Sol has 22 scored results on Noometry and Mistral Medium 3.1 has 3.