# Mistral Small vs Mistral Small 3

> Mistral Small is the stronger model overall, scoring 33.4 to 31.2 on the Noometry Index. Mistral Small 3 costs 4.6× less per token, which makes it the better buy when Mistral Small's lead doesn't matter for your workload.

- Canonical page: https://noometry.com/compare/mistral-small-vs-mistral-small-3
- Last updated: 2026-10-10
- Shared benchmarks: 20

## Summary

- They share 20 benchmarks with published results for both. Mistral Small scores higher in 7 categories and Mistral Small 3 in 1 category; 6 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Mistral Small leads 52.5 to 32.2.
- The biggest single-benchmark swing is BigCodeBench Instruct: 36.1% for Mistral Small and 45.3% for Mistral Small 3.
- Mistral Small 3 is cheaper at $0.05 / $0.08 per million input/output tokens, against $0.15 / $0.60 for Mistral Small.
- Mistral Small accepts more context: 262K tokens versus 33K.

## Snapshot

| | Mistral Small | Mistral Small 3 |
|---|---|---|
| Provider | Mistral AI | Mistral AI |
| Noometry Index | 33.4 | 31.2 |
| Rank | 243 | 278 |
| Context | 262K | 33K |
| Input $/M | $0.15 | $0.05 |
| Output $/M | $0.60 | $0.08 |
| Weights | Open | Open |

## Coding

- Mistral Small: 34.0 (#247)
- Mistral Small 3: 36.5 (#207)

| Benchmark | Mistral Small | Mistral Small 3 |
|---|---|---|
| BigCodeBench Instruct | 36.1% | 45.3% |
| LMArena Coding | 1362 | 1246 |
| BigCodeBench Complete | 46.6% | 50.4% |
| SciCode | 26.5% | — |
| LiveBench Coding | 36.2% | — |
| ALE-Bench | 497.62 | — |

## Agentic & Tool Use

- Mistral Small: 28.1 (#93)
- Mistral Small 3: —

| Benchmark | Mistral Small | Mistral Small 3 |
|---|---|---|
| Berkeley Function Calling Leaderboard | 37.1% | — |

## Reasoning

- Mistral Small: 19.8 (#250)
- Mistral Small 3: 18.9 (#273)

| Benchmark | Mistral Small | Mistral Small 3 |
|---|---|---|
| LMArena Hard Prompts | 1335 | 1233 |
| Kagi LLM Benchmark | 37.8% | — |
| CritPt | 0% | — |
| Chess Puzzles | — | 0% |
| LiveBench Reasoning | 44.8% | — |
| DTBench | 70.9% | — |
| LiveBench Data Analysis | 53.7% | — |
| LMCA | 20.6% | — |
| Epoch Capabilities Index | — | 127.07 |
| LiveBench | 44% | — |

## Math

- Mistral Small: 16.4 (#293)
- Mistral Small 3: 16.3 (#295)

| Benchmark | Mistral Small | Mistral Small 3 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 5.8% | 6.7% |
| LMArena Math | 1341 | 1240 |
| LiveBench Math | 39.9% | — |
| MATH Level 5 | 46.8% | — |

## Knowledge

- Mistral Small: 31.0 (#222)
- Mistral Small 3: 25.1 (#263)

| Benchmark | Mistral Small | Mistral Small 3 |
|---|---|---|
| GPQA Diamond | 47.5% | 47.3% |
| LMArena Expert | 1291 | 1202 |
| Confabulations | — | 25.2% |
| Vectara Hallucination Rate | 5.1% | — |
| MMLU | 68.7% | — |

## Multimodal

- Mistral Small: 33.5 (#96)
- Mistral Small 3: —

| Benchmark | Mistral Small | Mistral Small 3 |
|---|---|---|
| LMArena Vision | 1142 | — |

## Multilingual

- Mistral Small: 45.5 (#169)
- Mistral Small 3: 37.3 (#236)

| Benchmark | Mistral Small | Mistral Small 3 |
|---|---|---|
| LMArena Non-English | 1315 | 1198 |
| LMArena Chinese | 1340 | 1204 |
| LMArena French | 1337 | 1203 |
| LMArena German | 1340 | 1211 |
| LMArena Japanese | 1275 | 1111 |
| LMArena Korean | 1259 | 1188 |
| LMArena Russian | 1324 | 1216 |
| LMArena Spanish | 1346 | — |

## Instruction Following

- Mistral Small: 66.4 (#209)
- Mistral Small 3: 63.7 (#229)

| Benchmark | Mistral Small | Mistral Small 3 |
|---|---|---|
| LMArena Instruction Following | 1310 | 1214 |
| LiveBench Instruction Following | 63.7% | — |

## Long Context

- Mistral Small: 40.4 (#156)
- Mistral Small 3: 37.8 (#211)

| Benchmark | Mistral Small | Mistral Small 3 |
|---|---|---|
| LMArena Longer Query | 1327 | 1246 |

## Writing & Preference

- Mistral Small: 52.5 (#171)
- Mistral Small 3: 32.2 (#280)

| Benchmark | Mistral Small | Mistral Small 3 |
|---|---|---|
| LMArena Text | 1338 | 1234 |
| LMArena Creative Writing | 1305 | 1195 |
| LMArena Multi-Turn | 1344 | 1217 |
| EQ-Bench Creative Writing | — | 707 |
| LiveBench Language | 30.5% | — |

## FAQ

### Is Mistral Small better than Mistral Small 3?

Mistral Small is the stronger model overall, scoring 33.4 to 31.2 on the Noometry Index. Mistral Small 3 costs 4.6× less per token, which makes it the better buy when Mistral Small's lead doesn't matter for your workload.

### Which is cheaper, Mistral Small or Mistral Small 3?

Mistral Small 3 is cheaper. It lists at $0.05 per million input tokens and $0.08 per million output tokens; Mistral Small lists at $0.15 and $0.60.

### Is Mistral Small or Mistral Small 3 better for coding?

Mistral Small 3 scores higher on coding benchmarks: 36.5 versus 34.0 in the Noometry coding category.

### Which has the bigger context window?

Mistral Small does, with 262K tokens against 33K.

### How many benchmarks do Mistral Small and Mistral Small 3 share?

20 benchmarks have published results for both models. Mistral Small has 39 scored results on Noometry and Mistral Small 3 has 24.