Noometry

Model comparison

Claude Sonnet 5.5 vs Mistral 7B

Claude Sonnet 5.5 is the stronger model overall, scoring 61.9 to 23.0 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.

Last verified . 15 shared benchmarks.

Claude Sonnet 5.5 Anthropic

61.9

Rank #10 Confirmed

Mistral 7B Mistral AI

23.0

Rank #351 Confirmed

Summary

  • They share 15 benchmarks with published results for both. Claude Sonnet 5.5 scores higher in 8 categories and Mistral 7B in 0 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in math, where Claude Sonnet 5.5 leads 87.9 to 8.1.
  • 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.

Side by side

Claude Sonnet 5.5Mistral 7B
ProviderAnthropicMistral AI
Noometry Index61.923.0
Released2026-09-282023-09-27
WeightsProprietaryOpen
Context window1M8K
Max output128K8K
Input $ / M tokens$2$0.25
Output $ / M tokens$10$0.25
Results tracked3237

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Category by category

Coding Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 67.3 (#6), Mistral 7B: 26.4 (#326)

BenchmarkClaude Sonnet 5.5Mistral 7B
LMArena Coding15131082
FrontierCode52.1%—
CursorBench55.5%—
LMArena WebDev1774—
FrontierSWE61.9%—
SciCode61%—
BigCodeBench Instruct—19.5%
BigCodeBench Complete—27.3%
ALE-Bench1,819—
HumanEval+—36%
MBPP+—42.1%

Agentic & Tool Use Not comparable

Claude Sonnet 5.5: 45.0 (#16), Mistral 7B: —

BenchmarkClaude Sonnet 5.5Mistral 7B
APEX-Agents75.5%—

Reasoning Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 54.0 (#28), Mistral 7B: 13.1 (#336)

BenchmarkClaude Sonnet 5.5Mistral 7B
LMArena Hard Prompts14951067
Epoch Capabilities Index165.03112.21
NYT Connections (extended)80.5%—
CritPt31.4%—
Chess Puzzles—0%
Mystery Game Puzzles65%—
DTBench—42.5%
Adversarial NLI—47.1%
BIG-Bench Hard—56.1%
HellaSwag—81%
PIQA—83%
WinoGrande—75.3%

Math Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 87.9 (#6), Mistral 7B: 8.1 (#325)

BenchmarkClaude Sonnet 5.5Mistral 7B
OTIS Mock AIME 2024-2025100%0.3%
LMArena Math15101085
FrontierMath (Tiers 1-3)88.8%—
FrontierMath Tier 480.5%—
ProofBench100%—
MATH Level 5—3.7%
FrontierMath Erdős2.9%—
GSM8K—54.4%

Knowledge Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 66.0 (#12), Mistral 7B: 7.4 (#311)

BenchmarkClaude Sonnet 5.5Mistral 7B
GPQA Diamond95.6%15.2%
LMArena Expert15401036
SimpleQA Verified46.5%—
ARC (AI2) Challenge—78.6%
BoolQ—87.4%
MMLU—62.5%
OpenBookQA—79.8%
TriviaQA—75.2%

Multimodal Not comparable

Claude Sonnet 5.5: 51.5 (#6), Mistral 7B: —

BenchmarkClaude Sonnet 5.5Mistral 7B
LMArena Vision1289—
Furniture Assembly75%—

Multilingual Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 55.3 (#30), Mistral 7B: 25.8 (#283)

BenchmarkClaude Sonnet 5.5Mistral 7B
LMArena Non-English14521012
LMArena Chinese15221009
LMArena Russian14511018
LMArena French—1037
LMArena German—987
LMArena Japanese—878
LMArena Spanish—1026

Instruction Following Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 78.3 (#11), Mistral 7B: 54.2 (#280)

BenchmarkClaude Sonnet 5.5Mistral 7B
LMArena Instruction Following14951060

Long Context Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 45.9 (#28), Mistral 7B: 32.2 (#271)

BenchmarkClaude Sonnet 5.5Mistral 7B
LMArena Longer Query14981060

Writing & Preference Claude Sonnet 5.5 leads

Claude Sonnet 5.5: 66.0 (#40), Mistral 7B: 30.7 (#286)

BenchmarkClaude Sonnet 5.5Mistral 7B
LMArena Text14711090
LMArena Creative Writing14651068
LMArena Multi-Turn14741062

Frequently asked questions

Is Claude Sonnet 5.5 better than Mistral 7B?

Claude Sonnet 5.5 is the stronger model overall, scoring 61.9 to 23.0 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: 67.3 versus 26.4 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?

15 benchmarks have published results for both models. Claude Sonnet 5.5 has 32 scored results on Noometry and Mistral 7B has 37.

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