# Mistral Medium 3.1 vs Step 3.7 Flash

> Step 3.7 Flash is the stronger model overall, scoring 36.5 to 31.5 on the Noometry Index.

- Canonical page: https://noometry.com/compare/mistral-medium-3-1-vs-step-3-7-flash
- Last updated: 2026-10-10
- Shared benchmarks: 1

## Summary

- They share 1 benchmark with published results for both. Mistral Medium 3.1 scores higher in 0 categories and Step 3.7 Flash in 1 category; one gap is clear of the uncertainty.
- The widest gap is in reasoning, where Step 3.7 Flash leads 20.9 to 10.1.
- The biggest single-benchmark swing is NYT Connections (extended): 6.5% for Mistral Medium 3.1 and 39.7% for Step 3.7 Flash.
- Step 3.7 Flash is cheaper at $0.18 / $1.11 per million input/output tokens, against $0.40 / $2 for Mistral Medium 3.1.
- Step 3.7 Flash accepts more context: 256K tokens versus 131K.
- Step 3.7 Flash has downloadable open weights; the other is API-only.

## Snapshot

| | Mistral Medium 3.1 | Step 3.7 Flash |
|---|---|---|
| Provider | Mistral AI | StepFun |
| Noometry Index | 31.5 | 36.5 |
| Rank | 260 | 207 |
| Context | 131K | 256K |
| Input $/M | $0.40 | $0.18 |
| Output $/M | $2 | $1.11 |
| Weights | Proprietary | Open |

## Coding

- Mistral Medium 3.1: —
- Step 3.7 Flash: 39.4 (#147)

| Benchmark | Mistral Medium 3.1 | Step 3.7 Flash |
|---|---|---|
| SciCode | — | 40% |
| ALE-Bench | — | 694.12 |

## Reasoning

- Mistral Medium 3.1: 10.1 (#336)
- Step 3.7 Flash: 20.9 (#211)

| Benchmark | Mistral Medium 3.1 | Step 3.7 Flash |
|---|---|---|
| NYT Connections (extended) | 6.5% | 39.7% |
| CritPt | — | 2.3% |
| Thematic Generalization | 20.3% | — |

## Math

- Mistral Medium 3.1: —
- Step 3.7 Flash: 40.9 (#74)

| Benchmark | Mistral Medium 3.1 | Step 3.7 Flash |
|---|---|---|
| MathArena Final-Answer Competitions | — | 68.5% |

## Writing & Preference

- Mistral Medium 3.1: 55.6 (#140)
- Step 3.7 Flash: —

| Benchmark | Mistral Medium 3.1 | Step 3.7 Flash |
|---|---|---|
| EQ-Bench Creative Writing | 1476 | — |

## FAQ

### Is Mistral Medium 3.1 better than Step 3.7 Flash?

Step 3.7 Flash is the stronger model overall, scoring 36.5 to 31.5 on the Noometry Index.

### Which is cheaper, Mistral Medium 3.1 or Step 3.7 Flash?

Step 3.7 Flash is cheaper. It lists at $0.18 per million input tokens and $1.11 per million output tokens; Mistral Medium 3.1 lists at $0.40 and $2.

### Which has the bigger context window?

Step 3.7 Flash does, with 256K tokens against 131K.

### How many benchmarks do Mistral Medium 3.1 and Step 3.7 Flash share?

1 benchmark has published results for both models. Mistral Medium 3.1 has 3 scored results on Noometry and Step 3.7 Flash has 5.