# Grok 4 Fast vs Mistral Small 3.2

> Grok 4 Fast is the stronger model overall, scoring 39.0 to 30.8 on the Noometry Index.

- Canonical page: https://noometry.com/compare/grok-4-fast-vs-mistral-small-3-2
- Last updated: 2026-10-10
- Shared benchmarks: 2

## Summary

- They share 2 benchmarks with published results for both. Grok 4 Fast scores higher in 4 categories and Mistral Small 3.2 in 0 categories; 4 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Grok 4 Fast leads 60.2 to 45.1.
- The biggest single-benchmark swing is Kagi LLM Benchmark: 66.1% for Grok 4 Fast and 40.4% for Mistral Small 3.2.
- Mistral Small 3.2 has downloadable open weights; the other is API-only.

## Snapshot

| | Grok 4 Fast | Mistral Small 3.2 |
|---|---|---|
| Provider | xAI | Mistral AI |
| Noometry Index | 39.0 | 30.8 |
| Rank | 164 | 271 |
| Context | — | 256K |
| Input $/M | — | $0.0938 |
| Output $/M | — | $0.25 |
| Weights | Proprietary | Open |

## Coding

- Grok 4 Fast: 32.3 (#264)
- Mistral Small 3.2: —

| Benchmark | Grok 4 Fast | Mistral Small 3.2 |
|---|---|---|
| LMArena WebDev | 1160 | — |
| WeirdML | 42.9% | — |
| LMArena Coding | 1429 | — |

## Agentic & Tool Use

- Grok 4 Fast: 29.3 (#80)
- Mistral Small 3.2: —

| Benchmark | Grok 4 Fast | Mistral Small 3.2 |
|---|---|---|
| τ²-bench Banking | 15.7% | — |
| Cybench | 30% | — |
| LMArena Search | 1171 | — |

## Reasoning

- Grok 4 Fast: 22.5 (#179)
- Mistral Small 3.2: 17.5 (#282)

| Benchmark | Grok 4 Fast | Mistral Small 3.2 |
|---|---|---|
| Kagi LLM Benchmark | 66.1% | 40.4% |
| Epoch Capabilities Index | 144.21 | 131.73 |
| ARC-AGI-2 | 5.3% | — |
| ARC-AGI-1 | 48.5% | — |
| Chess Puzzles | — | 1% |
| LMArena Hard Prompts | 1413 | — |
| DTBench | 82.7% | — |
| ForecastBench | 60.5 | — |

## Math

- Grok 4 Fast: 36.1 (#126)
- Mistral Small 3.2: 24.9 (#251)

| Benchmark | Grok 4 Fast | Mistral Small 3.2 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | — | 30.3% |
| LMArena Math | 1419 | — |

## Knowledge

- Grok 4 Fast: 31.5 (#211)
- Mistral Small 3.2: 26.8 (#249)

| Benchmark | Grok 4 Fast | Mistral Small 3.2 |
|---|---|---|
| GPQA Diamond | — | 49.1% |
| Vectara Hallucination Rate | 19.7% | — |
| LMArena Expert | 1411 | — |

## Multilingual

- Grok 4 Fast: 51.5 (#106)
- Mistral Small 3.2: —

| Benchmark | Grok 4 Fast | Mistral Small 3.2 |
|---|---|---|
| LMArena Non-English | 1397 | — |
| LMArena Chinese | 1458 | — |
| LMArena French | 1433 | — |
| LMArena German | 1383 | — |
| LMArena Japanese | 1358 | — |
| LMArena Korean | 1359 | — |
| LMArena Russian | 1387 | — |
| LMArena Spanish | 1414 | — |

## Instruction Following

- Grok 4 Fast: 73.4 (#116)
- Mistral Small 3.2: —

| Benchmark | Grok 4 Fast | Mistral Small 3.2 |
|---|---|---|
| LMArena Instruction Following | 1388 | — |

## Long Context

- Grok 4 Fast: 63.2 (#3)
- Mistral Small 3.2: —

| Benchmark | Grok 4 Fast | Mistral Small 3.2 |
|---|---|---|
| Fiction.LiveBench | 94.4% | — |
| LMArena Longer Query | 1415 | — |

## Writing & Preference

- Grok 4 Fast: 60.2 (#96)
- Mistral Small 3.2: 45.1 (#219)

| Benchmark | Grok 4 Fast | Mistral Small 3.2 |
|---|---|---|
| LMArena Text | 1407 | — |
| LMArena Creative Writing | 1388 | — |
| EQ-Bench Creative Writing | — | 1255 |
| LMArena Multi-Turn | 1414 | — |

## FAQ

### Is Grok 4 Fast better than Mistral Small 3.2?

Grok 4 Fast is the stronger model overall, scoring 39.0 to 30.8 on the Noometry Index.

### How many benchmarks do Grok 4 Fast and Mistral Small 3.2 share?

2 benchmarks have published results for both models. Grok 4 Fast has 30 scored results on Noometry and Mistral Small 3.2 has 6.