# Grok 3 vs Mistral Medium

> Grok 3 is the stronger model overall, scoring 39.6 to 36.0 on the Noometry Index.

- Canonical page: https://noometry.com/compare/grok-3-vs-mistral-medium
- Last updated: 2026-10-10
- Shared benchmarks: 25

## Summary

- They share 25 benchmarks with published results for both. Grok 3 scores higher in 6 categories and Mistral Medium in 3 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Grok 3 leads 46.0 to 24.9.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 55.6% for Grok 3 and 32.2% for Mistral Medium.
- Mistral Medium has downloadable open weights; the other is API-only.

## Snapshot

| | Grok 3 | Mistral Medium |
|---|---|---|
| Provider | xAI | Mistral AI |
| Noometry Index | 39.6 | 36.0 |
| Rank | 150 | 211 |
| Context | — | 262K |
| Input $/M | — | $1.50 |
| Output $/M | — | $7.50 |
| Weights | Proprietary | Open |

## Coding

- Grok 3: 41.5 (#113)
- Mistral Medium: 33.8 (#241)

| Benchmark | Grok 3 | Mistral Medium |
|---|---|---|
| WeirdML | 37.2% | 43.7% |
| LMArena Coding | 1432 | 1434 |
| FrontierCode | — | 8% |
| Aider Polyglot | 53.3% | — |
| SciCode | — | 40.2% |
| ALE-Bench | — | 763.98 |

## Agentic & Tool Use

- Grok 3: 30.2 (#69)
- Mistral Medium: 28.1 (#84)

| Benchmark | Grok 3 | Mistral Medium |
|---|---|---|
| Berkeley Function Calling Leaderboard | — | 37.7% |
| BALROG | 29.5% | — |

## Reasoning

- Grok 3: 13.8 (#322)
- Mistral Medium: 23.3 (#165)

| Benchmark | Grok 3 | Mistral Medium |
|---|---|---|
| Kagi LLM Benchmark | 61.3% | 50% |
| LMArena Hard Prompts | 1433 | 1426 |
| ARC-AGI-2 | 0% | — |
| SimpleBench | 36.1% | — |
| ARC-AGI-1 | 5.5% | — |
| CritPt | — | 0% |
| DTBench | — | 75.5% |
| LMCA | — | 26.1% |
| Surface Evolver Bench | — | 26.9% |
| Epoch Capabilities Index | 138.34 | — |

## Math

- Grok 3: 36.2 (#122)
- Mistral Medium: 27.2 (#238)

| Benchmark | Grok 3 | Mistral Medium |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 55.6% | 32.2% |
| LMArena Math | 1390 | 1409 |
| MATH Level 5 | 88.7% | 81.6% |
| FrontierMath (Feb 2025 set) | 3.8% | 0.3% |
| ProofBench | — | 9% |
| Omni-MATH | 46.4% | — |
| FrontierMath Tier 4 (v1) | 0% | — |

## Knowledge

- Grok 3: 46.0 (#76)
- Mistral Medium: 24.9 (#260)

| Benchmark | Grok 3 | Mistral Medium |
|---|---|---|
| GPQA Diamond | 75.8% | 59.5% |
| Vectara Hallucination Rate | 5.8% | 22.7% |
| LMArena Expert | 1420 | 1408 |
| Humanity's Last Exam | — | 4.5% |
| MMLU-Pro | 78.8% | — |
| Confabulations | 14.2% | — |
| GPQA (HELM) | 65% | — |

## Multimodal

- Grok 3: —
- Mistral Medium: 34.6 (#82)

| Benchmark | Grok 3 | Mistral Medium |
|---|---|---|
| LMArena Vision | — | 1172 |

## Multilingual

- Grok 3: 52.5 (#81)
- Mistral Medium: 52.3 (#86)

| Benchmark | Grok 3 | Mistral Medium |
|---|---|---|
| LMArena Non-English | 1411 | 1408 |
| LMArena Chinese | 1448 | 1448 |
| LMArena French | 1460 | 1460 |
| LMArena German | 1431 | 1433 |
| LMArena Japanese | 1389 | 1378 |
| LMArena Korean | 1374 | 1382 |
| LMArena Russian | 1416 | 1411 |
| LMArena Spanish | 1417 | 1433 |

## Instruction Following

- Grok 3: 75.2 (#69)
- Mistral Medium: 73.9 (#111)

| Benchmark | Grok 3 | Mistral Medium |
|---|---|---|
| LMArena Instruction Following | 1409 | 1398 |
| IFEval | 88.4% | — |

## Long Context

- Grok 3: 38.7 (#187)
- Mistral Medium: 42.9 (#108)

| Benchmark | Grok 3 | Mistral Medium |
|---|---|---|
| LMArena Longer Query | 1439 | 1406 |
| Fiction.LiveBench | 58.3% | — |

## Writing & Preference

- Grok 3: 56.0 (#136)
- Mistral Medium: 60.2 (#97)

| Benchmark | Grok 3 | Mistral Medium |
|---|---|---|
| LMArena Text | 1426 | 1424 |
| LMArena Creative Writing | 1414 | 1391 |
| Short-Story Creative Writing | 76.4% | 77.3% |
| LMArena Multi-Turn | 1424 | 1418 |
| EQ-Bench Creative Writing | 1186 | — |
| WildBench | 84.9% | — |

## FAQ

### Is Grok 3 better than Mistral Medium?

Grok 3 is the stronger model overall, scoring 39.6 to 36.0 on the Noometry Index.

### Is Grok 3 or Mistral Medium better for coding?

Grok 3 scores higher on coding benchmarks: 41.5 versus 33.8 in the Noometry coding category.

### How many benchmarks do Grok 3 and Mistral Medium share?

25 benchmarks have published results for both models. Grok 3 has 40 scored results on Noometry and Mistral Medium has 36.