Model Comparison

Claude 3 Opus vs Mistral Small 3.1 24B Instruct

Claude 3 Opus has a slight edge in benchmark performance.

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Performance Benchmarks

Comparative analysis across standard metrics

5 benchmarks

Claude 3 Opus outperforms in 3 benchmarks (GPQA, MMLU, MMLU-Pro), while Mistral Small 3.1 24B Instruct is better at 2 benchmarks (HumanEval, MATH).

Claude 3 Opus has a slight edge in benchmark performance.

Tue Jun 02 2026 • llm-stats.com

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only Claude 3 Opus specifies input context (200,000 tokens). Only Claude 3 Opus specifies output context (200,000 tokens).

Anthropic
Claude 3 Opus
Input200,000 tokens
Output200,000 tokens
Mistral AI
Mistral Small 3.1 24B Instruct
Input- tokens
Output- tokens
Tue Jun 02 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Claude 3 Opus 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 3 Opus

Text
Images
Audio
Video

Mistral Small 3.1 24B Instruct

Text
Images
Audio
Video

License

Usage and distribution terms

Claude 3 Opus 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 3 Opus

Proprietary

Closed source

Mistral Small 3.1 24B Instruct

Apache 2.0

Open weights

Release Timeline

When each model was launched

Claude 3 Opus was released on 2024-02-29, while Mistral Small 3.1 24B Instruct was released on 2025-03-17.

Mistral Small 3.1 24B Instruct is 13 months newer than Claude 3 Opus.

Claude 3 Opus

Feb 29, 2024

2.3 years ago

Mistral Small 3.1 24B Instruct

Mar 17, 2025

1.2 years ago

1.0yr 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

Anthropic
Larger context window (200,000 tokens)
Higher GPQA score (50.4% vs 46.0%)
Higher MMLU score (86.8% vs 80.6%)
Higher MMLU-Pro score (68.5% vs 66.8%)
Mistral AI
Has open weights
Higher HumanEval score (88.4% vs 84.9%)
Higher MATH score (69.3% vs 60.1%)

Detailed Comparison

AI Model Comparison Table
Feature
Anthropic
Claude 3 Opus
Mistral AI
Mistral Small 3.1 24B Instruct

FAQ

Common questions about Claude 3 Opus vs Mistral Small 3.1 24B Instruct.

Which is better, Claude 3 Opus or Mistral Small 3.1 24B Instruct?

Claude 3 Opus has a slight edge in benchmark performance. Claude 3 Opus 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 3 Opus compare to Mistral Small 3.1 24B Instruct in benchmarks?

Claude 3 Opus scores ARC-C: 96.4%, HellaSwag: 95.4%, GSM8k: 95.0%, MGSM: 90.7%, BIG-Bench Hard: 86.8%. 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 3 Opus and Mistral Small 3.1 24B Instruct?

Claude 3 Opus 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 3 Opus 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 3 Opus and Mistral Small 3.1 24B Instruct?

Claude 3 Opus is developed by Anthropic and Mistral Small 3.1 24B Instruct is developed by Mistral AI.