# Codestral vs Grok 4 Fast

> Grok 4 Fast is the stronger model overall, scoring 39.4 to 30.6 on the Noometry Index.

- Canonical page: https://noometry.com/compare/codestral-vs-grok-4-fast
- Last updated: 2026-10-11
- Shared benchmarks: 1

## Summary

- They share 1 benchmark with published results for both. Codestral scores higher in 0 categories and Grok 4 Fast in 2 categories; 2 gaps are clear of the uncertainty.
- The widest gap is in coding, where Grok 4 Fast leads 32.5 to 27.3.
- The biggest single-benchmark swing is Kagi LLM Benchmark: 32.5% for Codestral and 66.1% for Grok 4 Fast.

## Snapshot

| | Codestral | Grok 4 Fast |
|---|---|---|
| Provider | Mistral AI | xAI |
| Noometry Index | 30.6 | 39.4 |
| Rank | 290 | 167 |
| Context | 256K | — |
| Input $/M | $0.30 | — |
| Output $/M | $0.90 | — |
| Weights | Proprietary | Proprietary |

## Coding

- Codestral: 27.3 (#321)
- Grok 4 Fast: 32.5 (#271)

| Benchmark | Codestral | Grok 4 Fast |
|---|---|---|
| Aider Polyglot | 11.1% | — |
| LMArena WebDev | — | 1159 |
| WeirdML | — | 42.9% |
| BigCodeBench Instruct | 41.8% | — |
| LMArena Coding | — | 1429 |
| BigCodeBench Complete | 52.5% | — |
| ALE-Bench | 137.78 | — |
| HumanEval+ | 73.8% | — |
| MBPP+ | 61.9% | — |

## Agentic & Tool Use

- Codestral: —
- Grok 4 Fast: 29.5 (#86)

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

## Reasoning

- Codestral: 19.8 (#251)
- Grok 4 Fast: 22.2 (#201)

| Benchmark | Codestral | Grok 4 Fast |
|---|---|---|
| Kagi LLM Benchmark | 32.5% | 66.1% |
| ARC-AGI-2 | — | 5.3% |
| ARC-AGI-1 | — | 48.5% |
| LMArena Hard Prompts | — | 1412 |
| DTBench | — | 82.7% |
| Epoch Capabilities Index | — | 144.2 |
| ForecastBench | — | 60.5 |

## Math

- Codestral: —
- Grok 4 Fast: 38.9 (#123)

| Benchmark | Codestral | Grok 4 Fast |
|---|---|---|
| LMArena Math | — | 1419 |

## Knowledge

- Codestral: —
- Grok 4 Fast: 32.0 (#214)

| Benchmark | Codestral | Grok 4 Fast |
|---|---|---|
| Vectara Hallucination Rate | — | 19.7% |
| LMArena Expert | — | 1411 |

## Multilingual

- Codestral: —
- Grok 4 Fast: 51.3 (#111)

| Benchmark | Codestral | Grok 4 Fast |
|---|---|---|
| LMArena Non-English | — | 1396 |
| LMArena Chinese | — | 1457 |
| LMArena French | — | 1431 |
| LMArena German | — | 1383 |
| LMArena Japanese | — | 1352 |
| LMArena Korean | — | 1357 |
| LMArena Russian | — | 1389 |
| LMArena Spanish | — | 1415 |

## Instruction Following

- Codestral: —
- Grok 4 Fast: 73.2 (#121)

| Benchmark | Codestral | Grok 4 Fast |
|---|---|---|
| LMArena Instruction Following | — | 1387 |

## Long Context

- Codestral: —
- Grok 4 Fast: 63.2 (#3)

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

## Writing & Preference

- Codestral: —
- Grok 4 Fast: 60.0 (#102)

| Benchmark | Codestral | Grok 4 Fast |
|---|---|---|
| LMArena Text | — | 1407 |
| LMArena Creative Writing | — | 1387 |
| LMArena Multi-Turn | — | 1414 |

## FAQ

### Is Codestral better than Grok 4 Fast?

Grok 4 Fast is the stronger model overall, scoring 39.4 to 30.6 on the Noometry Index.

### Is Codestral or Grok 4 Fast better for coding?

Grok 4 Fast scores higher on coding benchmarks: 32.5 versus 27.3 in the Noometry coding category.

### How many benchmarks do Codestral and Grok 4 Fast share?

1 benchmark has published results for both models. Codestral has 7 scored results on Noometry and Grok 4 Fast has 30.