Mistral Large 3

Canonical version: Mistral Large 3.

State-of-the-art open-weight general-purpose multimodal model by Mistral AI, released December 2, 2025. First Mistral mixture-of-experts model since the Mixtral series. Released under the Apache 2.0 License (both base and instruct versions).

Succeeded by Mistral Large 4 (public preview on 6 October 2026). On the Artificial Analysis index, Large 3 scored 9 and Large 4 scores 38.

Architecture

• Sparse Mixture of Experts (MoE): 41B active parameters, 675B total parameters
• 256k context window
• Multimodal: text and image inputs
• Trained from scratch on 3,000 NVIDIA H200 GPUs

Performance

• Debuted at #2 in OSS non-reasoning models (#6 overall) on the LMArena leaderboard
• Parity with the best instruction-tuned open-weight models on general prompts
• Best-in-class performance on multilingual conversations (non-English/Chinese)
• Image understanding capabilities

Deployment

• Available in NVFP4 compressed format (built with llm-compressor)
• Runs on a single 8xA100 or 8xH100 node via vLLM
• Optimized for TensorRT-LLM and SGLang
• Support for prefill/decode disaggregated serving and speculative decoding on GB200 NVL72
• API pricing: $0.5/M input tokens, $1.5/M output tokens

Features

• Chat completions, function calling, agents
• Structured outputs, predicted outputs
• OCR, document QnA, bounding box extraction
• Fill-in-the-middle (FIM), embeddings
• Audio transcription, moderation
• Batch inference

Availability

• Mistral AI Studio
• Amazon Bedrock, Azure Foundry
• Hugging Face
• OpenRouter, Fireworks, Together AI, Modal, IBM WatsonX

References

• https://mistral.ai/news/mistral-3
• https://docs.mistral.ai/models/mistral-large-3-25-12
• https://huggingface.co/collections/mistralai/mistral-large-3

Related

• Mistral AI
• Large Language Models (LLMs)
• Mistral Small 4
• Mistral OCR
• Apache 2.0 License

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