# Claude Sonnet 5.5 vs Mistral

> Claude Sonnet 5.5 is the stronger model overall, scoring 60.5 to 29.4 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-sonnet-5-5-vs-mistral
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- The widest gap is in math, where Claude Sonnet 5.5 leads 88.7 to 20.5.

## Snapshot

| | Claude Sonnet 5.5 | Mistral |
|---|---|---|
| Provider | Anthropic | Mistral AI |
| Noometry Index | 60.5 | 29.4 |
| Rank | 10 | 297 |
| Context | 1M | — |
| Input $/M | $2 | — |
| Output $/M | $10 | — |
| Weights | Proprietary | Proprietary |

## Coding

- Claude Sonnet 5.5: 65.5 (#6)
- Mistral: 33.2 (#249)

| Benchmark | Claude Sonnet 5.5 | Mistral |
|---|---|---|
| FrontierCode | 52.1% | — |
| CursorBench | 55.5% | — |
| LMArena WebDev | 1699 | — |
| FrontierSWE | 61.9% | — |
| SciCode | 61% | — |
| LMArena Coding | — | 1162 |
| ALE-Bench | 1,819 | — |

## Agentic & Tool Use

- Claude Sonnet 5.5: 44.9 (#14)
- Mistral: —

| Benchmark | Claude Sonnet 5.5 | Mistral |
|---|---|---|
| APEX-Agents | 75.5% | — |

## Reasoning

- Claude Sonnet 5.5: 52.4 (#29)
- Mistral: 21.3 (#199)

| Benchmark | Claude Sonnet 5.5 | Mistral |
|---|---|---|
| CritPt | 31.4% | — |
| LMArena Hard Prompts | — | 1149 |
| Mystery Game Puzzles | 65% | — |

## Math

- Claude Sonnet 5.5: 88.7 (#4)
- Mistral: 20.5 (#275)

| Benchmark | Claude Sonnet 5.5 | Mistral |
|---|---|---|
| FrontierMath (Tiers 1-3) | 88.8% | — |
| FrontierMath Tier 4 | 80.5% | — |
| OTIS Mock AIME 2024-2025 | 100% | — |
| ProofBench | 100% | — |
| Omni-MATH | — | 7.2% |
| LMArena Math | — | 1180 |

## Knowledge

- Claude Sonnet 5.5: 66.0 (#11)
- Mistral: 16.3 (#283)

| Benchmark | Claude Sonnet 5.5 | Mistral |
|---|---|---|
| GPQA Diamond | 95.6% | — |
| SimpleQA Verified | 46.5% | — |
| MMLU-Pro | — | 27.7% |
| GPQA (HELM) | — | 30.3% |
| LMArena Expert | — | 1125 |

## Multimodal

- Claude Sonnet 5.5: 53.2 (#5)
- Mistral: —

| Benchmark | Claude Sonnet 5.5 | Mistral |
|---|---|---|
| Furniture Assembly | 75% | — |

## Multilingual

- Claude Sonnet 5.5: —
- Mistral: 33.0 (#249)

| Benchmark | Claude Sonnet 5.5 | Mistral |
|---|---|---|
| LMArena Non-English | — | 1129 |
| LMArena Chinese | — | 1109 |
| LMArena French | — | 1179 |
| LMArena German | — | 1155 |
| LMArena Japanese | — | 1012 |
| LMArena Korean | — | 1032 |
| LMArena Russian | — | 1168 |
| LMArena Spanish | — | 1143 |

## Instruction Following

- Claude Sonnet 5.5: —
- Mistral: 52.9 (#283)

| Benchmark | Claude Sonnet 5.5 | Mistral |
|---|---|---|
| IFEval | — | 56.8% |
| LMArena Instruction Following | — | 1152 |

## Long Context

- Claude Sonnet 5.5: —
- Mistral: 35.0 (#240)

| Benchmark | Claude Sonnet 5.5 | Mistral |
|---|---|---|
| LMArena Longer Query | — | 1154 |

## Writing & Preference

- Claude Sonnet 5.5: —
- Mistral: 37.2 (#255)

| Benchmark | Claude Sonnet 5.5 | Mistral |
|---|---|---|
| LMArena Text | — | 1165 |
| LMArena Creative Writing | — | 1158 |
| WildBench | — | 66% |
| LMArena Multi-Turn | — | 1147 |

## FAQ

### Is Claude Sonnet 5.5 better than Mistral?

Claude Sonnet 5.5 is the stronger model overall, scoring 60.5 to 29.4 on the Noometry Index.

### Is Claude Sonnet 5.5 or Mistral better for coding?

Claude Sonnet 5.5 scores higher on coding benchmarks: 65.5 versus 33.2 in the Noometry coding category.

### How many benchmarks do Claude Sonnet 5.5 and Mistral share?

0 benchmarks have published results for both models. Claude Sonnet 5.5 has 16 scored results on Noometry and Mistral has 22.