# Claude Sonnet 4.6 vs Codestral

> Claude Sonnet 4.6 is the stronger model overall, scoring 50.3 to 30.6 on the Noometry Index. Codestral costs 13× less per token, which makes it the better buy when Claude Sonnet 4.6's lead doesn't matter for your workload.

- Canonical page: https://noometry.com/compare/claude-sonnet-4-6-vs-codestral
- Last updated: 2026-10-11
- Shared benchmarks: 1

## Summary

- They share 1 benchmark with published results for both. Claude Sonnet 4.6 scores higher in 2 categories and Codestral in 0 categories; 2 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Claude Sonnet 4.6 leads 46.1 to 19.8.
- Codestral is cheaper at $0.30 / $0.90 per million input/output tokens, against $3 / $15 for Claude Sonnet 4.6.
- Claude Sonnet 4.6 accepts more context: 1M tokens versus 256K.

## Snapshot

| | Claude Sonnet 4.6 | Codestral |
|---|---|---|
| Provider | Anthropic | Mistral AI |
| Noometry Index | 50.3 | 30.6 |
| Rank | 50 | 290 |
| Context | 1M | 256K |
| Input $/M | $3 | $0.30 |
| Output $/M | $15 | $0.90 |
| Weights | Proprietary | Proprietary |

## Coding

- Claude Sonnet 4.6: 46.3 (#67)
- Codestral: 27.3 (#321)

| Benchmark | Claude Sonnet 4.6 | Codestral |
|---|---|---|
| ALE-Bench | 1,327 | 137.78 |
| SWE-bench Verified | 75.2% | — |
| DeepSWE | 29.9% | — |
| FrontierCode | 24.3% | — |
| Aider Polyglot | — | 11.1% |
| LMArena WebDev | 1522 | — |
| SciCode | 46.8% | — |
| WeirdML | 66.1% | — |
| BigCodeBench Instruct | — | 41.8% |
| LMArena Coding | 1504 | — |
| BigCodeBench Complete | — | 52.5% |
| HumanEval+ | — | 73.8% |
| MBPP+ | — | 61.9% |

## Agentic & Tool Use

- Claude Sonnet 4.6: 39.1 (#28)
- Codestral: —

| Benchmark | Claude Sonnet 4.6 | Codestral |
|---|---|---|
| Terminal-Bench | 53.4% | — |
| APEX-Agents | 43% | — |
| OSWorld 2.0 | 9.3% | — |
| DeepResearch Bench | 54.9% | — |
| OSWorld | 72.1% | — |
| ExploitBench | 23.6% | — |
| GBAEval | 48.8% | — |
| GDP.pdf | 18% | — |
| LMArena Search | 1221 | — |
| Vending-Bench 2 | 7,204 | — |

## Reasoning

- Claude Sonnet 4.6: 46.1 (#45)
- Codestral: 19.8 (#251)

| Benchmark | Claude Sonnet 4.6 | Codestral |
|---|---|---|
| ARC-AGI-2 | 60.4% | — |
| Kagi LLM Benchmark | — | 32.5% |
| NYT Connections (extended) | 80.9% | — |
| ARC-AGI-1 | 86.5% | — |
| CritPt | 3.1% | — |
| Chess Puzzles | 13% | — |
| Thematic Generalization | 76.3% | — |
| LMArena Hard Prompts | 1484 | — |
| Mystery Game Puzzles | 16% | — |
| DTBench | 89.9% | — |
| LMCA | 46.5% | — |
| Epoch Capabilities Index | 152.24 | — |
| ForecastBench | 62 | — |

## Math

- Claude Sonnet 4.6: 52.9 (#49)
- Codestral: —

| Benchmark | Claude Sonnet 4.6 | Codestral |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 85.8% | — |
| ProofBench | 45% | — |
| LMArena Math | 1462 | — |
| FrontierMath (Feb 2025 set) | 32.4% | — |
| FrontierMath Tier 4 (v1) | 8.3% | — |

## Knowledge

- Claude Sonnet 4.6: 51.7 (#65)
- Codestral: —

| Benchmark | Claude Sonnet 4.6 | Codestral |
|---|---|---|
| GPQA Diamond | 87.4% | — |
| SimpleQA Verified | 35.5% | — |
| Vectara Hallucination Rate | 10.6% | — |
| LMArena Expert | 1500 | — |

## Multimodal

- Claude Sonnet 4.6: 38.0 (#68)
- Codestral: —

| Benchmark | Claude Sonnet 4.6 | Codestral |
|---|---|---|
| LMArena Vision | 1283 | — |
| Blueprint-Bench 2 | 6.7% | — |
| LMArena Document | 1482 | — |

## Multilingual

- Claude Sonnet 4.6: 54.4 (#41)
- Codestral: —

| Benchmark | Claude Sonnet 4.6 | Codestral |
|---|---|---|
| LMArena Non-English | 1440 | — |
| LMArena Chinese | 1491 | — |
| LMArena French | 1465 | — |
| LMArena German | 1428 | — |
| LMArena Japanese | 1420 | — |
| LMArena Korean | 1411 | — |
| LMArena Russian | 1440 | — |
| LMArena Spanish | 1464 | — |

## Instruction Following

- Claude Sonnet 4.6: 77.4 (#25)
- Codestral: —

| Benchmark | Claude Sonnet 4.6 | Codestral |
|---|---|---|
| LMArena Instruction Following | 1475 | — |

## Long Context

- Claude Sonnet 4.6: 45.3 (#44)
- Codestral: —

| Benchmark | Claude Sonnet 4.6 | Codestral |
|---|---|---|
| LMArena Longer Query | 1479 | — |

## Writing & Preference

- Claude Sonnet 4.6: 70.2 (#22)
- Codestral: —

| Benchmark | Claude Sonnet 4.6 | Codestral |
|---|---|---|
| LMArena Text | 1458 | — |
| LMArena Creative Writing | 1435 | — |
| EQ-Bench Creative Writing | 1810 | — |
| EQ-Bench 4 | 1207 | — |
| LMArena Multi-Turn | 1464 | — |

## FAQ

### Is Claude Sonnet 4.6 better than Codestral?

Claude Sonnet 4.6 is the stronger model overall, scoring 50.3 to 30.6 on the Noometry Index. Codestral costs 13× less per token, which makes it the better buy when Claude Sonnet 4.6's lead doesn't matter for your workload.

### Which is cheaper, Claude Sonnet 4.6 or Codestral?

Codestral is cheaper. It lists at $0.30 per million input tokens and $0.90 per million output tokens; Claude Sonnet 4.6 lists at $3 and $15.

### Is Claude Sonnet 4.6 or Codestral better for coding?

Claude Sonnet 4.6 scores higher on coding benchmarks: 46.3 versus 27.3 in the Noometry coding category.

### Which has the bigger context window?

Claude Sonnet 4.6 does, with 1M tokens against 256K.

### How many benchmarks do Claude Sonnet 4.6 and Codestral share?

1 benchmark has published results for both models. Claude Sonnet 4.6 has 57 scored results on Noometry and Codestral has 7.