# Hy4 preview vs Mistral Small 3.1

> Hy4 preview is the stronger model overall, scoring 45.3 to 31.7 on the Noometry Index. Mistral Small 3.1 costs 3.1× less per token, which makes it the better buy when Hy4 preview's lead doesn't matter for your workload.

- Canonical page: https://noometry.com/compare/hy4-preview-vs-mistral-small-3-1
- Last updated: 2026-10-11
- Shared benchmarks: 0

## Summary

- The widest gap is in math, where Hy4 preview leads 55.7 to 14.7.
- Mistral Small 3.1 is cheaper at $0.35 / $0.56 per million input/output tokens, against $0.83 / $2.50 for Hy4 preview.
- Hy4 preview accepts more context: 1.05M tokens versus 128K.

## Snapshot

| | Hy4 preview | Mistral Small 3.1 |
|---|---|---|
| Provider | Tencent | Mistral AI |
| Noometry Index | 45.3 | 31.7 |
| Rank | 73 | 269 |
| Context | 1.05M | 128K |
| Input $/M | $0.83 | $0.35 |
| Output $/M | $2.50 | $0.56 |
| Weights | Open | Open |

## Coding

- Hy4 preview: 51.6 (#38)
- Mistral Small 3.1: 38.3 (#179)

| Benchmark | Hy4 preview | Mistral Small 3.1 |
|---|---|---|
| LMArena WebDev | 1632 | — |
| LMArena Coding | — | 1309 |

## Reasoning

- Hy4 preview: 31.9 (#79)
- Mistral Small 3.1: 19.7 (#254)

| Benchmark | Hy4 preview | Mistral Small 3.1 |
|---|---|---|
| NYT Connections (extended) | 68.2% | — |
| Chess Puzzles | — | 1% |
| LMArena Hard Prompts | — | 1278 |
| Epoch Capabilities Index | — | 127.48 |

## Math

- Hy4 preview: 55.7 (#42)
- Mistral Small 3.1: 14.7 (#301)

| Benchmark | Hy4 preview | Mistral Small 3.1 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | — | 3.9% |
| ProofBench | 75% | — |
| Omni-MATH | — | 24.8% |
| LMArena Math | — | 1262 |

## Knowledge

- Hy4 preview: —
- Mistral Small 3.1: 22.6 (#271)

| Benchmark | Hy4 preview | Mistral Small 3.1 |
|---|---|---|
| GPQA Diamond | — | 41.9% |
| MMLU-Pro | — | 61% |
| GPQA (HELM) | — | 39.2% |
| LMArena Expert | — | 1257 |

## Multimodal

- Hy4 preview: —
- Mistral Small 3.1: 33.2 (#99)

| Benchmark | Hy4 preview | Mistral Small 3.1 |
|---|---|---|
| LMArena Vision | — | 1136 |

## Multilingual

- Hy4 preview: —
- Mistral Small 3.1: 41.2 (#209)

| Benchmark | Hy4 preview | Mistral Small 3.1 |
|---|---|---|
| LMArena Non-English | — | 1255 |
| LMArena Chinese | — | 1253 |
| LMArena French | — | 1273 |
| LMArena German | — | 1266 |
| LMArena Japanese | — | 1208 |
| LMArena Korean | — | 1206 |
| LMArena Russian | — | 1263 |
| LMArena Spanish | — | 1283 |

## Instruction Following

- Hy4 preview: —
- Mistral Small 3.1: 63.6 (#230)

| Benchmark | Hy4 preview | Mistral Small 3.1 |
|---|---|---|
| IFEval | — | 75% |
| LMArena Instruction Following | — | 1264 |

## Long Context

- Hy4 preview: —
- Mistral Small 3.1: 39.5 (#178)

| Benchmark | Hy4 preview | Mistral Small 3.1 |
|---|---|---|
| LMArena Longer Query | — | 1299 |

## Writing & Preference

- Hy4 preview: —
- Mistral Small 3.1: 37.0 (#259)

| Benchmark | Hy4 preview | Mistral Small 3.1 |
|---|---|---|
| LMArena Text | — | 1277 |
| LMArena Creative Writing | — | 1253 |
| EQ-Bench Creative Writing | — | 761 |
| WildBench | — | 78.8% |
| LMArena Multi-Turn | — | 1270 |

## FAQ

### Is Hy4 preview better than Mistral Small 3.1?

Hy4 preview is the stronger model overall, scoring 45.3 to 31.7 on the Noometry Index. Mistral Small 3.1 costs 3.1× less per token, which makes it the better buy when Hy4 preview's lead doesn't matter for your workload.

### Which is cheaper, Hy4 preview or Mistral Small 3.1?

Mistral Small 3.1 is cheaper. It lists at $0.35 per million input tokens and $0.56 per million output tokens; Hy4 preview lists at $0.83 and $2.50.

### Is Hy4 preview or Mistral Small 3.1 better for coding?

Hy4 preview scores higher on coding benchmarks: 51.6 versus 38.3 in the Noometry coding category.

### Which has the bigger context window?

Hy4 preview does, with 1.05M tokens against 128K.

### How many benchmarks do Hy4 preview and Mistral Small 3.1 share?

0 benchmarks have published results for both models. Hy4 preview has 3 scored results on Noometry and Mistral Small 3.1 has 28.