Mistral Large 3 (675B Base)
by Mistral AI
Mistral Large 3 (675B Base) is a model from Mistral AI, released on December 4, 2025. It ranks #160 of 220 models by Intelligence Score with a score of 8.8.
Mistral Large 3 is a state-of-the-art general-purpose Multimodal granular Mixture-of-Experts model with 41B active parameters and 675B total parameters trained from scratch with 3000 H200s. This model is the base pre-trained version, not fine-tuned for instruction or reasoning tasks, making it ideal for custom post-training processes. Designed for reliability and long-context comprehension - It is engineered for production-grade assistants, retrieval-augmented systems, scientific workloads, and complex enterprise workflows.
Key specs
| Provider | Mistral AI |
|---|---|
| Release date | 2025-12-04 |
| License | open source |
| Intelligence Score | 8.8 |
| Coding index | 1.2 |
Quick answers
Is Mistral Large 3 (675B Base) open source?
Yes. Mistral Large 3 (675B Base) is an open model released under the open source license.
When was Mistral Large 3 (675B Base) released?
Mistral AI released Mistral Large 3 (675B Base) on December 4, 2025.
How does Mistral Large 3 (675B Base) compare to Claude Opus 5.5 (Reasoning)?
Mistral Large 3 (675B Base) scores 8.8 on the Intelligence Score versus 60.5 for Claude Opus 5.5 (Reasoning), the current #1.
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