Noometry

Model comparison

Claude Sonnet 5 vs Mistral Nemo

Claude Sonnet 5 is the stronger model overall, scoring 54.6 to 26.4 on the Noometry Index. Mistral Nemo costs 27× less per token, which makes it the better buy when Claude Sonnet 5's lead doesn't matter for your workload.

Last verified . 4 shared benchmarks.

Claude Sonnet 5 Anthropic

54.6

Rank #29 Confirmed

Mistral Nemo Mistral AI

26.4

Rank #337 Confirmed

Summary

  • They share 4 benchmarks with published results for both. Claude Sonnet 5 scores higher in 5 categories and Mistral Nemo in 0 categories; 5 gaps are clear of the uncertainty.
  • The widest gap is in knowledge, where Claude Sonnet 5 leads 55.6 to 12.3.
  • The biggest single-benchmark swing is GPQA Diamond: 90.5% for Claude Sonnet 5 and 29.9% for Mistral Nemo.
  • Mistral Nemo is cheaper at $0.15 / $0.15 per million input/output tokens, against $2 / $10 for Claude Sonnet 5.
  • Claude Sonnet 5 accepts more context: 1M tokens versus 128K.
  • Mistral Nemo has downloadable open weights; the other is API-only.

Side by side

Claude Sonnet 5Mistral Nemo
ProviderAnthropicMistral AI
Noometry Index54.626.4
Released2026-06-292024-07-01
WeightsProprietaryOpen
Context window1M128K
Max output128K128K
Input $ / M tokens$2$0.15
Output $ / M tokens$10$0.15
Results tracked5110

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Category by category

Coding Not comparable

Claude Sonnet 5: 55.5 (#26), Mistral Nemo: —

BenchmarkClaude Sonnet 5Mistral Nemo
DeepSWE53.8%—
FrontierCode42.7%—
CursorBench34.1%—
LMArena WebDev1541—
SciCode54.3%—
GSO37.3%—
WeirdML68.8%—
LMArena Coding1483—
ALE-Bench1,463—

Agentic & Tool Use Claude Sonnet 5 leads

Claude Sonnet 5: 42.8 (#18), Mistral Nemo: 23.5 (#125)

BenchmarkClaude Sonnet 5Mistral Nemo
APEX-Agents54.5%—
Berkeley Function Calling Leaderboard—27.6%
BALROG—17.6%
GBAEval65.3%—
LMArena Search1194—
Vending-Bench 26,378—

Reasoning Claude Sonnet 5 leads

Claude Sonnet 5: 49.1 (#39), Mistral Nemo: 20.7 (#232)

BenchmarkClaude Sonnet 5Mistral Nemo
DTBench92.5%48.6%
Epoch Capabilities Index156.21118.68
SimpleBench60.6%—
NYT Connections (extended)75.1%—
CritPt16.9%—
Chess Puzzles35%—
LMArena Hard Prompts1461—
Mystery Game Puzzles35%—
LMCA50%—
Surface Evolver Bench60%—
Bench to the Future 30.14—
ForecastBench61.1—
PIQA—83.5%

Math Claude Sonnet 5 leads

Claude Sonnet 5: 66.2 (#27), Mistral Nemo: 25.5 (#268)

BenchmarkClaude Sonnet 5Mistral Nemo
FrontierMath (Tiers 1-3)65.6%—
FrontierMath Tier 429.3%—
OTIS Mock AIME 2024-202594.7%—
ProofBench77%—
LMArena Math1467—
MATH Level 5—10.8%
GSM8K—84.2%

Knowledge Claude Sonnet 5 leads

Claude Sonnet 5: 55.6 (#47), Mistral Nemo: 12.3 (#298)

BenchmarkClaude Sonnet 5Mistral Nemo
GPQA Diamond90.5%29.9%
SimpleQA Verified33.7%—
LMArena Expert1490—
BoolQ—82.5%

Multimodal Not comparable

Claude Sonnet 5: 42.4 (#31), Mistral Nemo: —

BenchmarkClaude Sonnet 5Mistral Nemo
LMArena Vision1274—
Blueprint-Bench 224.9%—
LMArena Document1466—

Multilingual Not comparable

Claude Sonnet 5: 53.8 (#55), Mistral Nemo: —

BenchmarkClaude Sonnet 5Mistral Nemo
LMArena Non-English1431—
LMArena Chinese1477—
LMArena French1460—
LMArena German1440—
LMArena Japanese1422—
LMArena Korean1411—
LMArena Russian1451—
LMArena Spanish1437—

Instruction Following Not comparable

Claude Sonnet 5: 76.3 (#41), Mistral Nemo: —

BenchmarkClaude Sonnet 5Mistral Nemo
LMArena Instruction Following1452—

Long Context Not comparable

Claude Sonnet 5: 44.8 (#55), Mistral Nemo: —

BenchmarkClaude Sonnet 5Mistral Nemo
LMArena Longer Query1463—

Writing & Preference Claude Sonnet 5 leads

Claude Sonnet 5: 69.2 (#25), Mistral Nemo: 28.5 (#296)

BenchmarkClaude Sonnet 5Mistral Nemo
EQ-Bench Creative Writing1794881
LMArena Text1442—
LMArena Creative Writing1416—
EQ-Bench 41236—
LMArena Multi-Turn1454—

Frequently asked questions

Is Claude Sonnet 5 better than Mistral Nemo?

Claude Sonnet 5 is the stronger model overall, scoring 54.6 to 26.4 on the Noometry Index. Mistral Nemo costs 27× less per token, which makes it the better buy when Claude Sonnet 5's lead doesn't matter for your workload.

Which is cheaper, Claude Sonnet 5 or Mistral Nemo?

Mistral Nemo is cheaper. It lists at $0.15 per million input tokens and $0.15 per million output tokens; Claude Sonnet 5 lists at $2 and $10.

Which has the bigger context window?

Claude Sonnet 5 does, with 1M tokens against 128K.

How many benchmarks do Claude Sonnet 5 and Mistral Nemo share?

4 benchmarks have published results for both models. Claude Sonnet 5 has 51 scored results on Noometry and Mistral Nemo has 10.

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