Model Comparison

GPT-5 nano vs Mistral Small 3.2 24B InstructWhich is better in 2026?

GPT-5 nano significantly outperforms across most benchmarks.

Verdict: GPT-5 nano vs Mistral Small 3.2 24B Instruct — which is better?

GPT-5 nano (by OpenAI) and Mistral Small 3.2 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.

GPT-5 nano outperforms in 1 benchmarks (GPQA), while Mistral Small 3.2 24B Instruct is better at 0 benchmarks. GPT-5 nano significantly outperforms across most benchmarks.

Choose GPT-5 nano if…

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

Choose Mistral Small 3.2 24B Instruct if…

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

Comparative analysis across standard metrics

1 benchmarks

GPT-5 nano outperforms in 1 benchmarks (GPQA), while Mistral Small 3.2 24B Instruct is better at 0 benchmarks.

GPT-5 nano significantly outperforms across most benchmarks.

Sun Jun 07 2026 • llm-stats.com

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only GPT-5 nano specifies input context (400,000 tokens). Only GPT-5 nano specifies output context (128,000 tokens).

OpenAI
GPT-5 nano
Input400,000 tokens
Output128,000 tokens
Mistral AI
Mistral Small 3.2 24B Instruct
Input- tokens
Output- tokens
Sun Jun 07 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both GPT-5 nano and Mistral Small 3.2 24B Instruct support multimodal inputs.

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

GPT-5 nano

Text
Images
Audio
Video

Mistral Small 3.2 24B Instruct

Text
Images
Audio
Video

License

Usage and distribution terms

GPT-5 nano is licensed under a proprietary license, while Mistral Small 3.2 24B Instruct uses Apache 2.0.

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

GPT-5 nano

Proprietary

Closed source

Mistral Small 3.2 24B Instruct

Apache 2.0

Open weights

Release Timeline

When each model was launched

GPT-5 nano was released on 2025-08-07, while Mistral Small 3.2 24B Instruct was released on 2025-06-20.

GPT-5 nano is 2 months newer than Mistral Small 3.2 24B Instruct.

GPT-5 nano

Aug 7, 2025

10 months ago

1mo newer
Mistral Small 3.2 24B Instruct

Jun 20, 2025

11 months ago

Knowledge Cutoff

When training data ends

GPT-5 nano has a knowledge cutoff of 2024-05-30, while Mistral Small 3.2 24B Instruct has a cutoff of 2023-10-01.

GPT-5 nano has more recent training data (up to 2024-05-30), making it potentially better informed about events through that date compared to Mistral Small 3.2 24B Instruct (2023-10-01).

GPT-5 nano

May 2024

7 mo newer
Mistral Small 3.2 24B Instruct

Oct 2023

Outputs Comparison

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Key Takeaways

OpenAI
Larger context window (400,000 tokens)
Higher GPQA score (71.2% vs 46.1%)
Mistral AI
Has open weights

Detailed Comparison

AI Model Comparison Table
Feature
OpenAI
GPT-5 nano
Mistral AI
Mistral Small 3.2 24B Instruct

FAQ

Common questions about GPT-5 nano vs Mistral Small 3.2 24B Instruct.

Which is better, GPT-5 nano or Mistral Small 3.2 24B Instruct?

GPT-5 nano significantly outperforms across most benchmarks. GPT-5 nano is made by OpenAI and Mistral Small 3.2 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 GPT-5 nano compare to Mistral Small 3.2 24B Instruct in benchmarks?

GPT-5 nano scores AIME 2025: 85.2%, HMMT 2025: 75.6%, GPQA: 71.2%, FrontierMath: 9.6%, Humanity's Last Exam: 8.7%. Mistral Small 3.2 24B Instruct scores DocVQA: 94.9%, AI2D: 92.9%, HumanEval Plus: 92.9%, ChartQA: 87.4%, IF: 84.8%.

What are the context window sizes for GPT-5 nano and Mistral Small 3.2 24B Instruct?

GPT-5 nano supports 400K tokens and Mistral Small 3.2 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 GPT-5 nano and Mistral Small 3.2 24B Instruct?

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

Who makes GPT-5 nano and Mistral Small 3.2 24B Instruct?

GPT-5 nano is developed by OpenAI and Mistral Small 3.2 24B Instruct is developed by Mistral AI.

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