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Claude Sonnet 5.5 vs Ministral 3 (3B Instruct 2512)

Claude Sonnet 5.5 leads the LLM Stats Score 58.0 to 2.2.

Anthropic · Mistral AI · Updated for 2026

Which is better?

Claude Sonnet 5.5 leads the overall LLM Stats Score 58.0 to 2.2, ranking #3 overall.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose Claude Sonnet 5.5

  • overall performance matters — it scores 58.0 and ranks #3 on LLM Stats
  • your work emphasizes reasoning — it leads those capability indexes
  • you want the most recent training data — it shipped Sep 2026

Choose Ministral 3 (3B Instruct 2512)

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

At a glance

The differences that matter most.

Claude Sonnet 5.5
Anthropic
Ministral 3 (3B Instruct 2512)
Mistral AI
Core performance indexes
LLM Stats Score
58.0
#3
2.2
#324
Reasoning
56.6
#3
2.7
#313
Cost, coverage & limits
Benchmark wins
—
—
Input price
$2.00 / M
— / M
Output price
$10.00 / M
— / M
Context window
1,000,000
—

Individual benchmarks

47 reported for Claude Sonnet 5.5 · 4 for Ministral 3 (3B Instruct 2512)

No common benchmarks found

Claude Sonnet 5.5 and Ministral 3 (3B Instruct 2512)don't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Human preference

Blind head-to-head votes and playground preference scores

Context Window

Maximum input and output token capacity

Only Claude Sonnet 5.5 specifies input context (1,000,000 tokens). Only Claude Sonnet 5.5 specifies output context (128,000 tokens).

Anthropic
Claude Sonnet 5.5
Input1,000,000 tokens
Output128,000 tokens
Mistral AI
Ministral 3 (3B Instruct 2512)
Input- tokens
Output- tokens
Mon Oct 05 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

Both Claude Sonnet 5.5 and Ministral 3 (3B Instruct 2512) support multimodal inputs.

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

Claude Sonnet 5.5

Text
Images
Audio
Video

Ministral 3 (3B Instruct 2512)

Text
Images
Audio
Video

License

Usage and distribution terms

Claude Sonnet 5.5 is licensed under a proprietary license, while Ministral 3 (3B Instruct 2512) uses Apache 2.0.

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

Claude Sonnet 5.5

Proprietary

Closed source

Ministral 3 (3B Instruct 2512)

Apache 2.0

Open weights

Release Timeline

When each model was launched

Claude Sonnet 5.5 was released on 2026-09-28, while Ministral 3 (3B Instruct 2512) was released on 2025-12-04.

Claude Sonnet 5.5 is 10 months newer than Ministral 3 (3B Instruct 2512).

Claude Sonnet 5.5

Sep 28, 2026

6 days ago

9mo newer
Ministral 3 (3B Instruct 2512)

Dec 4, 2025

10 months ago

Knowledge Cutoff

When training data ends

Claude Sonnet 5.5 has a documented knowledge cutoff of 2026-06-01, while Ministral 3 (3B Instruct 2512)'s cutoff date is not specified.

We can confirm Claude Sonnet 5.5's training data extends to 2026-06-01, but cannot make a direct comparison without Ministral 3 (3B Instruct 2512)'s cutoff date.

Claude Sonnet 5.5

Jun 2026

Ministral 3 (3B Instruct 2512)

—

Outputs Comparison

Notice missing or incorrect data?

Judge for yourself.

Run your own prompts against Claude Sonnet 5.5 and Ministral 3 (3B Instruct 2512) side-by-side, then vote on the output you prefer.

Claude Sonnet 5.5
✓ Preferred
Ministral 3 (3B Instruct 2512)
Open in Playground

FAQ

Common questions about Claude Sonnet 5.5 vs Ministral 3 (3B Instruct 2512).

Which is better, Claude Sonnet 5.5 or Ministral 3 (3B Instruct 2512)?

Claude Sonnet 5.5 leads the LLM Stats Score 58.0 to 2.2. Claude Sonnet 5.5 is made by Anthropic and Ministral 3 (3B Instruct 2512) is made by Mistral AI. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does Claude Sonnet 5.5 compare to Ministral 3 (3B Instruct 2512) in benchmarks?

Claude Sonnet 5.5 scores BenchCAD (with Python tool): 96.3%, ArXivMath (with tools): 95.2%, Global-MMLU: 92.1%, MILU: 91.6%, SWE-bench Multilingual: 90.3%. Ministral 3 (3B Instruct 2512) scores MATH: 83.0%, Wild Bench: 56.8%, Arena Hard: 30.5%, MM-MT-Bench: 7.8%.

What are the context window sizes for Claude Sonnet 5.5 and Ministral 3 (3B Instruct 2512)?

Claude Sonnet 5.5 supports 1.0M tokens and Ministral 3 (3B Instruct 2512) 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 Sonnet 5.5 and Ministral 3 (3B Instruct 2512)?

Key differences include LLM Stats Score (58.0 vs 2.2), licensing (Proprietary vs Apache 2.0). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude Sonnet 5.5 and Ministral 3 (3B Instruct 2512)?

Claude Sonnet 5.5 is developed by Anthropic and Ministral 3 (3B Instruct 2512) is developed by Mistral AI.

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