# Grok-3 mini vs Mixtral 8x7B

> Grok-3 mini is the stronger model overall, scoring 41.2 to 27.1 on the Noometry Index.

- Canonical page: https://noometry.com/compare/grok-3-mini-vs-mixtral-8x7b
- Last updated: 2026-10-11
- Shared benchmarks: 25

## Summary

- They share 25 benchmarks with published results for both. Grok-3 mini scores higher in 7 categories and Mixtral 8x7B in 1 category; 8 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Grok-3 mini leads 46.4 to 11.0.
- The biggest single-benchmark swing is MATH Level 5: 90.9% for Grok-3 mini and 10% for Mixtral 8x7B.
- Mixtral 8x7B has downloadable open weights; the other is API-only.

## Snapshot

| | Grok-3 mini | Mixtral 8x7B |
|---|---|---|
| Provider | xAI | Mistral AI |
| Noometry Index | 41.2 | 27.1 |
| Rank | 141 | 334 |
| Context | — | 32K |
| Input $/M | — | $0.70 |
| Output $/M | — | $0.70 |
| Weights | Proprietary | Open |

## Coding

- Grok-3 mini: 40.8 (#131)
- Mixtral 8x7B: 32.8 (#269)

| Benchmark | Grok-3 mini | Mixtral 8x7B |
|---|---|---|
| LMArena Coding | 1379 | 1126 |
| Aider Polyglot | 49.3% | — |
| WeirdML | 42.6% | — |
| HumanEval+ | — | 39.6% |
| MBPP+ | — | 49.7% |

## Reasoning

- Grok-3 mini: 13.6 (#334)
- Mixtral 8x7B: 18.2 (#285)

| Benchmark | Grok-3 mini | Mixtral 8x7B |
|---|---|---|
| LMArena Hard Prompts | 1375 | 1115 |
| Epoch Capabilities Index | 140.35 | 118.47 |
| ARC-AGI-2 | 0.4% | — |
| Kagi LLM Benchmark | 61.3% | — |
| ARC-AGI-1 | 16.5% | — |
| DTBench | — | 49.6% |
| Adversarial NLI | — | 55.2% |
| ForecastBench | — | 56.3 |
| HellaSwag | — | 86.7% |
| PIQA | — | 83.6% |
| WinoGrande | — | 77.2% |

## Math

- Grok-3 mini: 42.1 (#85)
- Mixtral 8x7B: 18.8 (#289)

| Benchmark | Grok-3 mini | Mixtral 8x7B |
|---|---|---|
| Omni-MATH | 31.8% | 10.5% |
| LMArena Math | 1386 | 1147 |
| MATH Level 5 | 90.9% | 10% |
| OTIS Mock AIME 2024-2025 | 77.8% | — |
| FrontierMath (Feb 2025 set) | 5.9% | — |
| GSM8K | — | 74.4% |

## Knowledge

- Grok-3 mini: 46.4 (#81)
- Mixtral 8x7B: 11.0 (#301)

| Benchmark | Grok-3 mini | Mixtral 8x7B |
|---|---|---|
| GPQA Diamond | 76.3% | 30.6% |
| MMLU-Pro | 79.9% | 33.5% |
| GPQA (HELM) | 67.5% | 29.6% |
| LMArena Expert | 1395 | 1088 |
| Confabulations | 10.8% | — |
| ARC (AI2) Challenge | — | 87.3% |
| MMLU | — | 70.6% |
| OpenBookQA | — | 85.8% |
| TriviaQA | — | 82.2% |

## Multilingual

- Grok-3 mini: 48.1 (#145)
- Mixtral 8x7B: 29.6 (#266)

| Benchmark | Grok-3 mini | Mixtral 8x7B |
|---|---|---|
| LMArena Non-English | 1352 | 1077 |
| LMArena Chinese | 1387 | 1055 |
| LMArena French | 1357 | 1166 |
| LMArena German | 1349 | 1114 |
| LMArena Japanese | 1342 | 931 |
| LMArena Korean | 1335 | 968 |
| LMArena Russian | 1353 | 1090 |
| LMArena Spanish | 1381 | 1111 |

## Instruction Following

- Grok-3 mini: 78.5 (#9)
- Mixtral 8x7B: 51.0 (#297)

| Benchmark | Grok-3 mini | Mixtral 8x7B |
|---|---|---|
| IFEval | 95.1% | 57.5% |
| LMArena Instruction Following | 1357 | 1109 |

## Long Context

- Grok-3 mini: 41.0 (#147)
- Mixtral 8x7B: 33.4 (#260)

| Benchmark | Grok-3 mini | Mixtral 8x7B |
|---|---|---|
| LMArena Longer Query | 1372 | 1103 |
| Fiction.LiveBench | 66.7% | — |

## Writing & Preference

- Grok-3 mini: 52.5 (#169)
- Mixtral 8x7B: 34.2 (#270)

| Benchmark | Grok-3 mini | Mixtral 8x7B |
|---|---|---|
| LMArena Text | 1370 | 1132 |
| LMArena Creative Writing | 1342 | 1109 |
| WildBench | 65.1% | 67.3% |
| LMArena Multi-Turn | 1355 | 1115 |
| Short-Story Creative Writing | 73.5% | — |

## FAQ

### Is Grok-3 mini better than Mixtral 8x7B?

Grok-3 mini is the stronger model overall, scoring 41.2 to 27.1 on the Noometry Index.

### Is Grok-3 mini or Mixtral 8x7B better for coding?

Grok-3 mini scores higher on coding benchmarks: 40.8 versus 32.8 in the Noometry coding category.

### How many benchmarks do Grok-3 mini and Mixtral 8x7B share?

25 benchmarks have published results for both models. Grok-3 mini has 35 scored results on Noometry and Mixtral 8x7B has 38.