# Claude Sonnet 5.5 vs Mistral 7B

> Claude Sonnet 5.5 is the stronger model overall, scoring 60.5 to 22.9 on the Noometry Index. Mistral 7B costs 16× less per token, which makes it the better buy when Claude Sonnet 5.5's lead doesn't matter for your workload.

- Canonical page: https://noometry.com/compare/claude-sonnet-5-5-vs-mistral-7b
- Last updated: 2026-10-10
- Shared benchmarks: 2

## Summary

- They share 2 benchmarks with published results for both. Claude Sonnet 5.5 scores higher in 4 categories and Mistral 7B in 0 categories; 4 gaps are clear of the uncertainty.
- The widest gap is in math, where Claude Sonnet 5.5 leads 88.7 to 7.6.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 100% for Claude Sonnet 5.5 and 0.3% for Mistral 7B.
- Mistral 7B is cheaper at $0.25 / $0.25 per million input/output tokens, against $2 / $10 for Claude Sonnet 5.5.
- Claude Sonnet 5.5 accepts more context: 1M tokens versus 8K.
- Mistral 7B has downloadable open weights; the other is API-only.

## Snapshot

| | Claude Sonnet 5.5 | Mistral 7B |
|---|---|---|
| Provider | Anthropic | Mistral AI |
| Noometry Index | 60.5 | 22.9 |
| Rank | 10 | 346 |
| Context | 1M | 8K |
| Input $/M | $2 | $0.25 |
| Output $/M | $10 | $0.25 |
| Weights | Proprietary | Open |

## Coding

- Claude Sonnet 5.5: 65.5 (#6)
- Mistral 7B: 25.9 (#321)

| Benchmark | Claude Sonnet 5.5 | Mistral 7B |
|---|---|---|
| FrontierCode | 52.1% | — |
| CursorBench | 55.5% | — |
| LMArena WebDev | 1699 | — |
| FrontierSWE | 61.9% | — |
| SciCode | 61% | — |
| BigCodeBench Instruct | — | 19.5% |
| LMArena Coding | — | 1082 |
| BigCodeBench Complete | — | 27.3% |
| ALE-Bench | 1,819 | — |
| HumanEval+ | — | 36% |
| MBPP+ | — | 42.1% |

## Agentic & Tool Use

- Claude Sonnet 5.5: 44.9 (#14)
- Mistral 7B: —

| Benchmark | Claude Sonnet 5.5 | Mistral 7B |
|---|---|---|
| APEX-Agents | 75.5% | — |

## Reasoning

- Claude Sonnet 5.5: 52.4 (#29)
- Mistral 7B: 12.6 (#331)

| Benchmark | Claude Sonnet 5.5 | Mistral 7B |
|---|---|---|
| CritPt | 31.4% | — |
| Chess Puzzles | — | 0% |
| LMArena Hard Prompts | — | 1067 |
| Mystery Game Puzzles | 65% | — |
| DTBench | — | 42.5% |
| Adversarial NLI | — | 47.1% |
| BIG-Bench Hard | — | 56.1% |
| Epoch Capabilities Index | — | 111.97 |
| HellaSwag | — | 81% |
| PIQA | — | 83% |
| WinoGrande | — | 75.3% |

## Math

- Claude Sonnet 5.5: 88.7 (#4)
- Mistral 7B: 7.6 (#319)

| Benchmark | Claude Sonnet 5.5 | Mistral 7B |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 100% | 0.3% |
| FrontierMath (Tiers 1-3) | 88.8% | — |
| FrontierMath Tier 4 | 80.5% | — |
| ProofBench | 100% | — |
| LMArena Math | — | 1085 |
| MATH Level 5 | — | 3.7% |
| GSM8K | — | 54.4% |

## Knowledge

- Claude Sonnet 5.5: 66.0 (#11)
- Mistral 7B: 7.3 (#306)

| Benchmark | Claude Sonnet 5.5 | Mistral 7B |
|---|---|---|
| GPQA Diamond | 95.6% | 15.2% |
| SimpleQA Verified | 46.5% | — |
| LMArena Expert | — | 1036 |
| ARC (AI2) Challenge | — | 78.6% |
| BoolQ | — | 87.4% |
| MMLU | — | 62.5% |
| OpenBookQA | — | 79.8% |
| TriviaQA | — | 75.2% |

## Multimodal

- Claude Sonnet 5.5: 53.2 (#5)
- Mistral 7B: —

| Benchmark | Claude Sonnet 5.5 | Mistral 7B |
|---|---|---|
| Furniture Assembly | 75% | — |

## Multilingual

- Claude Sonnet 5.5: —
- Mistral 7B: 26.0 (#278)

| Benchmark | Claude Sonnet 5.5 | Mistral 7B |
|---|---|---|
| LMArena Non-English | — | 1012 |
| LMArena Chinese | — | 1009 |
| LMArena French | — | 1036 |
| LMArena German | — | 987 |
| LMArena Japanese | — | 878 |
| LMArena Russian | — | 1018 |
| LMArena Spanish | — | 1026 |

## Instruction Following

- Claude Sonnet 5.5: —
- Mistral 7B: 54.5 (#275)

| Benchmark | Claude Sonnet 5.5 | Mistral 7B |
|---|---|---|
| LMArena Instruction Following | — | 1060 |

## Long Context

- Claude Sonnet 5.5: —
- Mistral 7B: 32.2 (#266)

| Benchmark | Claude Sonnet 5.5 | Mistral 7B |
|---|---|---|
| LMArena Longer Query | — | 1060 |

## Writing & Preference

- Claude Sonnet 5.5: —
- Mistral 7B: 30.9 (#281)

| Benchmark | Claude Sonnet 5.5 | Mistral 7B |
|---|---|---|
| LMArena Text | — | 1090 |
| LMArena Creative Writing | — | 1068 |
| LMArena Multi-Turn | — | 1062 |

## FAQ

### Is Claude Sonnet 5.5 better than Mistral 7B?

Claude Sonnet 5.5 is the stronger model overall, scoring 60.5 to 22.9 on the Noometry Index. Mistral 7B costs 16× less per token, which makes it the better buy when Claude Sonnet 5.5's lead doesn't matter for your workload.

### Which is cheaper, Claude Sonnet 5.5 or Mistral 7B?

Mistral 7B is cheaper. It lists at $0.25 per million input tokens and $0.25 per million output tokens; Claude Sonnet 5.5 lists at $2 and $10.

### Is Claude Sonnet 5.5 or Mistral 7B better for coding?

Claude Sonnet 5.5 scores higher on coding benchmarks: 65.5 versus 25.9 in the Noometry coding category.

### Which has the bigger context window?

Claude Sonnet 5.5 does, with 1M tokens against 8K.

### How many benchmarks do Claude Sonnet 5.5 and Mistral 7B share?

2 benchmarks have published results for both models. Claude Sonnet 5.5 has 16 scored results on Noometry and Mistral 7B has 37.