Model Comparison

Kimi-k1.5 vs Mistral Small 3.1 24B Instruct

Kimi-k1.5 significantly outperforms across most benchmarks.

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Performance Benchmarks

Comparative analysis across standard metrics

2 benchmarks

Kimi-k1.5 outperforms in 2 benchmarks (MMLU, MMMU), while Mistral Small 3.1 24B Instruct is better at 0 benchmarks.

Kimi-k1.5 significantly outperforms across most benchmarks.

Thu May 14 2026 • llm-stats.com

Arena Performance

Human preference votes

Input Capabilities

Supported data types and modalities

Both Kimi-k1.5 and Mistral Small 3.1 24B Instruct support multimodal inputs.

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

Kimi-k1.5

Text
Images
Audio
Video

Mistral Small 3.1 24B Instruct

Text
Images
Audio
Video

License

Usage and distribution terms

Kimi-k1.5 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.

Kimi-k1.5

Proprietary

Closed source

Mistral Small 3.1 24B Instruct

Apache 2.0

Open weights

Release Timeline

When each model was launched

Kimi-k1.5 was released on 2025-01-20, while Mistral Small 3.1 24B Instruct was released on 2025-03-17.

Mistral Small 3.1 24B Instruct is 2 months newer than Kimi-k1.5.

Kimi-k1.5

Jan 20, 2025

1.3 years ago

Mistral Small 3.1 24B Instruct

Mar 17, 2025

1.2 years ago

1mo newer

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Outputs Comparison

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Key Takeaways

Moonshot AI
Higher MMLU score (87.4% vs 80.6%)
Higher MMMU score (70.0% vs 59.3%)
Mistral AI
Has open weights

Detailed Comparison

AI Model Comparison Table
Feature
Moonshot AI
Kimi-k1.5
Mistral AI
Mistral Small 3.1 24B Instruct

FAQ

Common questions about Kimi-k1.5 vs Mistral Small 3.1 24B Instruct.

Which is better, Kimi-k1.5 or Mistral Small 3.1 24B Instruct?

Kimi-k1.5 significantly outperforms across most benchmarks. Kimi-k1.5 is made by Moonshot AI 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 Kimi-k1.5 compare to Mistral Small 3.1 24B Instruct in benchmarks?

Kimi-k1.5 scores MATH-500: 96.2%, CLUEWSC: 91.4%, C-Eval: 88.3%, MMLU: 87.4%, IFEval: 87.2%. 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 main differences between Kimi-k1.5 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 Kimi-k1.5 and Mistral Small 3.1 24B Instruct?

Kimi-k1.5 is developed by Moonshot AI and Mistral Small 3.1 24B Instruct is developed by Mistral AI.