Claude Sonnet 4.5 vs Mistral Large 3 (675B Instruct 2512 NVFP4) Comparison
Comparing Claude Sonnet 4.5 and Mistral Large 3 (675B Instruct 2512 NVFP4) across benchmarks, pricing, and capabilities.
Performance Benchmarks
Comparative analysis across standard metrics
Claude Sonnet 4.5 outperforms in 2 benchmarks (GPQA, MMMLU), while Mistral Large 3 (675B Instruct 2512 NVFP4) is better at 0 benchmarks.
Claude Sonnet 4.5 significantly outperforms across most benchmarks.
Arena Performance
Human preference votes
Pricing Analysis
Price comparison per million tokens
Cost data unavailable.
Context Window
Maximum input and output token capacity
Only Claude Sonnet 4.5 specifies input context (200,000 tokens). Only Claude Sonnet 4.5 specifies output context (64,000 tokens).
Input Capabilities
Supported data types and modalities
Both Claude Sonnet 4.5 and Mistral Large 3 (675B Instruct 2512 NVFP4) support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
Claude Sonnet 4.5
Mistral Large 3 (675B Instruct 2512 NVFP4)
License
Usage and distribution terms
Claude Sonnet 4.5 is licensed under a proprietary license, while Mistral Large 3 (675B Instruct 2512 NVFP4) uses Apache 2.0.
License differences may affect how you can use these models in commercial or open-source projects.
Proprietary
Closed source
Apache 2.0
Open weights
Release Timeline
When each model was launched
Claude Sonnet 4.5 was released on 2025-09-29, while Mistral Large 3 (675B Instruct 2512 NVFP4) was released on 2025-12-04.
Mistral Large 3 (675B Instruct 2512 NVFP4) is 2 months newer than Claude Sonnet 4.5.
Sep 29, 2025
5 months ago
Dec 4, 2025
3 months ago
2mo newerKnowledge Cutoff
When training data ends
Claude Sonnet 4.5 has a documented knowledge cutoff of 2025-01-31, while Mistral Large 3 (675B Instruct 2512 NVFP4)'s cutoff date is not specified.
We can confirm Claude Sonnet 4.5's training data extends to 2025-01-31, but cannot make a direct comparison without Mistral Large 3 (675B Instruct 2512 NVFP4)'s cutoff date.
Jan 2025
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Outputs Comparison
Key Takeaways
Claude Sonnet 4.5
View detailsAnthropic
Detailed Comparison
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