Model Comparison

Claude Haiku 4.5 vs Mistral Small 3.1 24B InstructWhich is better in 2026?

Claude Haiku 4.5 significantly outperforms across most benchmarks.

Verdict: Claude Haiku 4.5 vs Mistral Small 3.1 24B Instruct — which is better?

Claude Haiku 4.5 (by Anthropic) and Mistral Small 3.1 24B Instruct (by Mistral AI) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.

Claude Haiku 4.5 outperforms in 1 benchmarks (GPQA), while Mistral Small 3.1 24B Instruct is better at 0 benchmarks. Claude Haiku 4.5 significantly outperforms across most benchmarks.

Choose Claude Haiku 4.5 if…

  • you want the strongest raw capability — it leads on 1 of 1 shared benchmarks
  • you want the most recent training data — it shipped Oct 2025

Choose Mistral Small 3.1 24B Instruct if…

  • you need open weights you can self-host or fine-tune

Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

Claude Haiku 4.5 outperforms in 1 benchmarks (GPQA), while Mistral Small 3.1 24B Instruct is better at 0 benchmarks.

Claude Haiku 4.5 significantly outperforms across most benchmarks.

Wed Jul 22 2026 • llm-stats.com

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only Claude Haiku 4.5 specifies input context (200,000 tokens). Only Claude Haiku 4.5 specifies output context (64,000 tokens).

Anthropic
Claude Haiku 4.5
Input200,000 tokens
Output64,000 tokens
Mistral AI
Mistral Small 3.1 24B Instruct
Input- tokens
Output- tokens
Wed Jul 22 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Claude Haiku 4.5 and Mistral Small 3.1 24B Instruct support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

Claude Haiku 4.5

Text
Images
Audio
Video

Mistral Small 3.1 24B Instruct

Text
Images
Audio
Video

License

Usage and distribution terms

Claude Haiku 4.5 is licensed under a proprietary license, while Mistral Small 3.1 24B Instruct uses Apache 2.0.

License differences may affect how you can use these models in commercial or open-source projects.

Claude Haiku 4.5

Proprietary

Closed source

Mistral Small 3.1 24B Instruct

Apache 2.0

Open weights

Release Timeline

When each model was launched

Claude Haiku 4.5 was released on 2025-10-15, while Mistral Small 3.1 24B Instruct was released on 2025-03-17.

Claude Haiku 4.5 is 7 months newer than Mistral Small 3.1 24B Instruct.

Claude Haiku 4.5

Oct 15, 2025

9 months ago

7mo newer
Mistral Small 3.1 24B Instruct

Mar 17, 2025

1.3 years ago

Knowledge Cutoff

When training data ends

Claude Haiku 4.5 has a documented knowledge cutoff of 2025-02-01, while Mistral Small 3.1 24B Instruct's cutoff date is not specified.

We can confirm Claude Haiku 4.5's training data extends to 2025-02-01, but cannot make a direct comparison without Mistral Small 3.1 24B Instruct's cutoff date.

Claude Haiku 4.5

Feb 2025

Mistral Small 3.1 24B Instruct

—

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Anthropic
Larger context window (200,000 tokens)
Higher GPQA score (73.0% vs 46.0%)
Mistral AI
Has open weights

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against Claude Haiku 4.5 and Mistral Small 3.1 24B Instruct side-by-side, then vote on the output you prefer.

Claude Haiku 4.5
✓ Preferred
Mistral Small 3.1 24B Instruct
Open in Playground
AI Model Comparison Table
Feature
Anthropic
Claude Haiku 4.5
Mistral AI
Mistral Small 3.1 24B Instruct

FAQ

Common questions about Claude Haiku 4.5 vs Mistral Small 3.1 24B Instruct.

Which is better, Claude Haiku 4.5 or Mistral Small 3.1 24B Instruct?

Claude Haiku 4.5 significantly outperforms across most benchmarks. Claude Haiku 4.5 is made by Anthropic and Mistral Small 3.1 24B Instruct is made by Mistral AI. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does Claude Haiku 4.5 compare to Mistral Small 3.1 24B Instruct in benchmarks?

Claude Haiku 4.5 scores Tau2 Retail: 83.2%, MMMLU: 83.0%, Tau2 Telecom: 83.0%, AIME 2025: 80.7%, SWE-Bench Verified: 73.3%. Mistral Small 3.1 24B Instruct scores HumanEval: 88.4%, MMLU: 80.6%, TriviaQA: 80.5%, MBPP: 74.7%, MATH: 69.3%.

What are the context window sizes for Claude Haiku 4.5 and Mistral Small 3.1 24B Instruct?

Claude Haiku 4.5 supports 200K tokens and Mistral Small 3.1 24B Instruct supports an unknown number of tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Claude Haiku 4.5 and Mistral Small 3.1 24B Instruct?

Key differences include licensing (Proprietary vs Apache 2.0). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude Haiku 4.5 and Mistral Small 3.1 24B Instruct?

Claude Haiku 4.5 is developed by Anthropic and Mistral Small 3.1 24B Instruct is developed by Mistral AI.

Related comparisons