Model comparison

Claude Haiku 5.5 vs Mistral Nemo

Claude Haiku 5.5 is the stronger model overall, scoring 49.5 to 26.4 on the Noometry Index.

Last verified . 1 shared benchmarks.

Claude Haiku 5.5 Anthropic

49.5

Rank #52 Confirmed

Mistral Nemo Mistral AI

26.4

Rank #337 Confirmed

Summary

  • They share 1 benchmark with published results for both. Claude Haiku 5.5 scores higher in 3 categories and Mistral Nemo in 0 categories; 3 gaps are clear of the uncertainty.
  • The widest gap is in math, where Claude Haiku 5.5 leads 73.6 to 25.5.
  • The biggest single-benchmark swing is GPQA Diamond: 89.6% for Claude Haiku 5.5 and 29.9% for Mistral Nemo.
  • Mistral Nemo is cheaper at $0.15 / $0.15 per million input/output tokens, against $0.10 / $0.50 for Claude Haiku 5.5.
  • Claude Haiku 5.5 accepts more context: 1M tokens versus 128K.
  • Mistral Nemo has downloadable open weights; the other is API-only.

Side by side

Claude Haiku 5.5 and Mistral Nemo specifications
Claude Haiku 5.5Mistral Nemo
ProviderAnthropicMistral AI
Noometry Index49.526.4
Released2026-10-072024-07-01
WeightsProprietaryOpen
Context window1M128K
Max output128K128K
Input $ / M tokens$0.10$0.15
Output $ / M tokens$0.50$0.15
Results tracked910

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Category by category

Coding Not comparable

Claude Haiku 5.5: 49.2 (#50), Mistral Nemo: —

Coding benchmarks
BenchmarkClaude Haiku 5.5Mistral Nemo
LMArena WebDev1587—

Agentic & Tool Use Not comparable

Claude Haiku 5.5: —, Mistral Nemo: 23.5 (#125)

Agentic & Tool Use benchmarks
BenchmarkClaude Haiku 5.5Mistral Nemo
Berkeley Function Calling Leaderboard—27.6%
BALROG—17.6%

Reasoning Claude Haiku 5.5 leads

Claude Haiku 5.5: 35.2 (#69), Mistral Nemo: 20.7 (#232)

Reasoning benchmarks
BenchmarkClaude Haiku 5.5Mistral Nemo
NYT Connections (extended)65.7%—
Mystery Game Puzzles30%—
DTBench—48.6%
Epoch Capabilities Index—118.68
PIQA—83.5%

Math Claude Haiku 5.5 leads

Claude Haiku 5.5: 73.6 (#18), Mistral Nemo: 25.5 (#268)

Math benchmarks
BenchmarkClaude Haiku 5.5Mistral Nemo
FrontierMath (Tiers 1-3)75.1%—
FrontierMath Tier 446.3%—
OTIS Mock AIME 2024-202598.9%—
MATH Level 5—10.8%
GSM8K—84.2%

Knowledge Claude Haiku 5.5 leads

Claude Haiku 5.5: 50.8 (#70), Mistral Nemo: 12.3 (#298)

Knowledge benchmarks
BenchmarkClaude Haiku 5.5Mistral Nemo
GPQA Diamond89.6%29.9%
SimpleQA Verified23.8%—
BoolQ—82.5%

Multimodal Not comparable

Claude Haiku 5.5: 43.7 (#21), Mistral Nemo: —

Multimodal benchmarks
BenchmarkClaude Haiku 5.5Mistral Nemo
Furniture Assembly47.5%—

Writing & Preference Not comparable

Claude Haiku 5.5: —, Mistral Nemo: 28.5 (#296)

Writing & Preference benchmarks
BenchmarkClaude Haiku 5.5Mistral Nemo
EQ-Bench Creative Writing—881

Frequently asked questions

Is Claude Haiku 5.5 better than Mistral Nemo?

Claude Haiku 5.5 is the stronger model overall, scoring 49.5 to 26.4 on the Noometry Index.

Which is cheaper, Claude Haiku 5.5 or Mistral Nemo?

Mistral Nemo is cheaper. It lists at $0.15 per million input tokens and $0.15 per million output tokens; Claude Haiku 5.5 lists at $0.10 and $0.50.

Which has the bigger context window?

Claude Haiku 5.5 does, with 1M tokens against 128K.

How many benchmarks do Claude Haiku 5.5 and Mistral Nemo share?

1 benchmark has published results for both models. Claude Haiku 5.5 has 9 scored results on Noometry and Mistral Nemo has 10.

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