# Mistral Medium 3.1 vs Solar Pro4

> Solar Pro4 is the stronger model overall, scoring 41.5 to 31.5 on the Noometry Index.

- Canonical page: https://noometry.com/compare/mistral-medium-3-1-vs-solar-pro4
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- The widest gap is in reasoning, where Solar Pro4 leads 27.3 to 10.1.
- Solar Pro4 is cheaper at $0.30 / $1.20 per million input/output tokens, against $0.40 / $2 for Mistral Medium 3.1.
- Solar Pro4 accepts more context: 524K tokens versus 131K.

## Snapshot

| | Mistral Medium 3.1 | Solar Pro4 |
|---|---|---|
| Provider | Mistral AI | Upstage |
| Noometry Index | 31.5 | 41.5 |
| Rank | 260 | 123 |
| Context | 131K | 524K |
| Input $/M | $0.40 | $0.30 |
| Output $/M | $2 | $1.20 |
| Weights | Proprietary | Proprietary |

## Coding

- Mistral Medium 3.1: —
- Solar Pro4: 39.9 (#135)

| Benchmark | Mistral Medium 3.1 | Solar Pro4 |
|---|---|---|
| LMArena WebDev | — | 1371 |
| LMArena Coding | — | 1439 |

## Reasoning

- Mistral Medium 3.1: 10.1 (#336)
- Solar Pro4: 27.3 (#107)

| Benchmark | Mistral Medium 3.1 | Solar Pro4 |
|---|---|---|
| NYT Connections (extended) | 6.5% | — |
| Thematic Generalization | 20.3% | — |
| LMArena Hard Prompts | — | 1398 |

## Math

- Mistral Medium 3.1: —
- Solar Pro4: 36.1 (#129)

| Benchmark | Mistral Medium 3.1 | Solar Pro4 |
|---|---|---|
| LMArena Math | — | 1418 |

## Knowledge

- Mistral Medium 3.1: —
- Solar Pro4: 39.0 (#128)

| Benchmark | Mistral Medium 3.1 | Solar Pro4 |
|---|---|---|
| LMArena Expert | — | 1421 |

## Multilingual

- Mistral Medium 3.1: —
- Solar Pro4: 49.0 (#134)

| Benchmark | Mistral Medium 3.1 | Solar Pro4 |
|---|---|---|
| LMArena Non-English | — | 1362 |
| LMArena Chinese | — | 1417 |
| LMArena French | — | 1403 |
| LMArena German | — | 1351 |
| LMArena Japanese | — | 1300 |
| LMArena Korean | — | 1383 |
| LMArena Russian | — | 1360 |
| LMArena Spanish | — | 1408 |

## Instruction Following

- Mistral Medium 3.1: —
- Solar Pro4: 72.8 (#128)

| Benchmark | Mistral Medium 3.1 | Solar Pro4 |
|---|---|---|
| LMArena Instruction Following | — | 1376 |

## Long Context

- Mistral Medium 3.1: —
- Solar Pro4: 42.0 (#125)

| Benchmark | Mistral Medium 3.1 | Solar Pro4 |
|---|---|---|
| LMArena Longer Query | — | 1379 |

## Writing & Preference

- Mistral Medium 3.1: 55.6 (#140)
- Solar Pro4: 56.7 (#133)

| Benchmark | Mistral Medium 3.1 | Solar Pro4 |
|---|---|---|
| LMArena Text | — | 1386 |
| LMArena Creative Writing | — | 1313 |
| EQ-Bench Creative Writing | 1476 | — |
| LMArena Multi-Turn | — | 1391 |

## FAQ

### Is Mistral Medium 3.1 better than Solar Pro4?

Solar Pro4 is the stronger model overall, scoring 41.5 to 31.5 on the Noometry Index.

### Which is cheaper, Mistral Medium 3.1 or Solar Pro4?

Solar Pro4 is cheaper. It lists at $0.30 per million input tokens and $1.20 per million output tokens; Mistral Medium 3.1 lists at $0.40 and $2.

### Which has the bigger context window?

Solar Pro4 does, with 524K tokens against 131K.

### How many benchmarks do Mistral Medium 3.1 and Solar Pro4 share?

0 benchmarks have published results for both models. Mistral Medium 3.1 has 3 scored results on Noometry and Solar Pro4 has 18.