Model Comparison

Codestral-22B vs o3-miniWhich is better in 2026?

Comparing Codestral-22B and o3-mini across benchmarks, pricing, and capabilities.

Verdict: Codestral-22B vs o3-mini — which is better?

Codestral-22B (by Mistral AI) and o3-mini (by OpenAI) 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.

Choose Codestral-22B if…

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

Choose o3-mini if…

  • you want the most recent training data — it shipped Jan 2025
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Performance Benchmarks

Comparative analysis across standard metrics

No common benchmarks found

Codestral-22B and o3-mini don't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only o3-mini specifies input context (200,000 tokens). Only o3-mini specifies output context (100,000 tokens).

Mistral AI
Codestral-22B
Input- tokens
Output- tokens
OpenAI
o3-mini
Input200,000 tokens
Output100,000 tokens
Mon Jun 08 2026 • llm-stats.com

License

Usage and distribution terms

Codestral-22B is licensed under MNPL-0.1, while o3-mini uses a proprietary license.

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

Codestral-22B

MNPL-0.1

Open weights

o3-mini

Proprietary

Closed source

Release Timeline

When each model was launched

Codestral-22B was released on 2024-05-29, while o3-mini was released on 2025-01-30.

o3-mini is 8 months newer than Codestral-22B.

Codestral-22B

May 29, 2024

2.0 years ago

o3-mini

Jan 30, 2025

1.4 years ago

8mo newer

Knowledge Cutoff

When training data ends

o3-mini has a documented knowledge cutoff of 2023-09-30, while Codestral-22B's cutoff date is not specified.

We can confirm o3-mini's training data extends to 2023-09-30, but cannot make a direct comparison without Codestral-22B's cutoff date.

Codestral-22B

—

o3-mini

Sep 2023

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

Mistral AI
Has open weights
OpenAI
Larger context window (200,000 tokens)

Detailed Comparison

AI Model Comparison Table
Feature
Mistral AI
Codestral-22B
OpenAI
o3-mini

FAQ

Common questions about Codestral-22B vs o3-mini.

Which is better, Codestral-22B or o3-mini?

Codestral-22B (Mistral AI) and o3-mini (OpenAI) each have strengths in different areas. Compare their benchmark scores, pricing, context windows, and capabilities above to determine which fits your needs.

How does Codestral-22B compare to o3-mini in benchmarks?

Codestral-22B scores HumanEvalFIM-Average: 91.6%, HumanEval: 81.1%, MBPP: 78.2%, Spider: 63.5%, HumanEval-Average: 61.5%. o3-mini scores COLLIE: 98.7%, MATH: 97.9%, IFEval: 93.9%, MGSM: 92.0%, AIME 2024: 87.3%.

What are the context window sizes for Codestral-22B and o3-mini?

Codestral-22B supports an unknown number of tokens and o3-mini supports 200K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Codestral-22B and o3-mini?

Key differences include licensing (MNPL-0.1 vs Proprietary). See the full comparison above for benchmark-by-benchmark results.

Who makes Codestral-22B and o3-mini?

Codestral-22B is developed by Mistral AI and o3-mini is developed by OpenAI.

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