# Grok 4.1 Fast vs Mistral Small 3.2

> Grok 4.1 Fast is the stronger model overall, scoring 41.4 to 31.2 on the Noometry Index. Mistral Small 3.2 costs 2.1× less per token, which makes it the better buy when Grok 4.1 Fast's lead doesn't matter for your workload.

- Canonical page: https://noometry.com/compare/grok-4-1-fast-vs-mistral-small-3-2
- Last updated: 2026-10-10
- Shared benchmarks: 1

## Summary

- They share 1 benchmark with published results for both. Grok 4.1 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 reasoning, where Grok 4.1 Fast leads 43.4 to 18.1.
- Mistral Small 3.2 is cheaper at $0.0938 / $0.25 per million input/output tokens, against $0.20 / $0.50 for Grok 4.1 Fast.
- Mistral Small 3.2 accepts more context: 256K tokens versus 128K.
- Mistral Small 3.2 has downloadable open weights; the other is API-only.

## Snapshot

| | Grok 4.1 Fast | Mistral Small 3.2 |
|---|---|---|
| Provider | xAI | Mistral AI |
| Noometry Index | 41.4 | 31.2 |
| Rank | 136 | 280 |
| Context | 128K | 256K |
| Input $/M | $0.20 | $0.0938 |
| Output $/M | $0.50 | $0.25 |
| Weights | Proprietary | Open |

## Coding

- Grok 4.1 Fast: 34.1 (#245)
- Mistral Small 3.2: —

| Benchmark | Grok 4.1 Fast | Mistral Small 3.2 |
|---|---|---|
| LMArena WebDev | 1242 | — |
| LMArena Coding | 1411 | — |
| ALE-Bench | 394.93 | — |

## Agentic & Tool Use

- Grok 4.1 Fast: 36.3 (#39)
- Mistral Small 3.2: —

| Benchmark | Grok 4.1 Fast | Mistral Small 3.2 |
|---|---|---|
| Berkeley Function Calling Leaderboard | 69.6% | — |
| τ²-bench Banking | 13.1% | — |
| LMArena Search | 1171 | — |
| Vending-Bench 2 | 1,107 | — |

## Reasoning

- Grok 4.1 Fast: 43.4 (#49)
- Mistral Small 3.2: 18.1 (#287)

| Benchmark | Grok 4.1 Fast | Mistral Small 3.2 |
|---|---|---|
| SimpleBench | 56% | — |
| Kagi LLM Benchmark | — | 40.4% |
| NYT Connections (extended) | 87.4% | — |
| Chess Puzzles | — | 1% |
| LMArena Hard Prompts | 1407 | — |
| DTBench | 87.7% | — |
| Epoch Capabilities Index | — | 131.74 |
| ForecastBench | 61 | — |

## Math

- Grok 4.1 Fast: 31.9 (#221)
- Mistral Small 3.2: 26.3 (#260)

| Benchmark | Grok 4.1 Fast | Mistral Small 3.2 |
|---|---|---|
| MathArena Final-Answer Competitions | 60.9% | — |
| OTIS Mock AIME 2024-2025 | — | 30.3% |
| ProofBench | 4% | — |
| LMArena Math | 1408 | — |

## Knowledge

- Grok 4.1 Fast: 33.1 (#207)
- Mistral Small 3.2: 26.7 (#256)

| Benchmark | Grok 4.1 Fast | Mistral Small 3.2 |
|---|---|---|
| GPQA Diamond | — | 49.1% |
| Vectara Hallucination Rate | 17.8% | — |
| LMArena Expert | 1399 | — |

## Multimodal

- Grok 4.1 Fast: 37.0 (#76)
- Mistral Small 3.2: —

| Benchmark | Grok 4.1 Fast | Mistral Small 3.2 |
|---|---|---|
| LMArena Vision | 1201 | — |

## Multilingual

- Grok 4.1 Fast: 51.0 (#114)
- Mistral Small 3.2: —

| Benchmark | Grok 4.1 Fast | Mistral Small 3.2 |
|---|---|---|
| LMArena Non-English | 1391 | — |
| LMArena Chinese | 1441 | — |
| LMArena French | 1415 | — |
| LMArena German | 1404 | — |
| LMArena Japanese | 1349 | — |
| LMArena Korean | 1361 | — |
| LMArena Russian | 1387 | — |
| LMArena Spanish | 1413 | — |

## Instruction Following

- Grok 4.1 Fast: 72.7 (#133)
- Mistral Small 3.2: —

| Benchmark | Grok 4.1 Fast | Mistral Small 3.2 |
|---|---|---|
| LMArena Instruction Following | 1376 | — |

## Long Context

- Grok 4.1 Fast: 42.4 (#126)
- Mistral Small 3.2: —

| Benchmark | Grok 4.1 Fast | Mistral Small 3.2 |
|---|---|---|
| LMArena Longer Query | 1390 | — |

## Writing & Preference

- Grok 4.1 Fast: 57.2 (#131)
- Mistral Small 3.2: 45.0 (#224)

| Benchmark | Grok 4.1 Fast | Mistral Small 3.2 |
|---|---|---|
| EQ-Bench Creative Writing | 1327 | 1255 |
| LMArena Text | 1408 | — |
| LMArena Creative Writing | 1394 | — |
| LMArena Multi-Turn | 1389 | — |

## FAQ

### Is Grok 4.1 Fast better than Mistral Small 3.2?

Grok 4.1 Fast is the stronger model overall, scoring 41.4 to 31.2 on the Noometry Index. Mistral Small 3.2 costs 2.1× less per token, which makes it the better buy when Grok 4.1 Fast's lead doesn't matter for your workload.

### Which is cheaper, Grok 4.1 Fast or Mistral Small 3.2?

Mistral Small 3.2 is cheaper. It lists at $0.0938 per million input tokens and $0.25 per million output tokens; Grok 4.1 Fast lists at $0.20 and $0.50.

### Which has the bigger context window?

Mistral Small 3.2 does, with 256K tokens against 128K.

### How many benchmarks do Grok 4.1 Fast and Mistral Small 3.2 share?

1 benchmark has published results for both models. Grok 4.1 Fast has 32 scored results on Noometry and Mistral Small 3.2 has 6.