Mistral Large 3 (v25.12, Base/Instruct)

Mistral Large 3 represents Mistral AI's most capable model to date, combining a 675B total parameter granular Mixture-of-Experts architecture with 41B active parameters per token. Released in December 2025 under the Apache 2.0 license, it positions itself as a frontier-class open-weight model optimized for enterprise multilingual pipelines, structured output reliability, and cost-efficient inference. With a 256K context window, native multimodal capabilities (text and images), and strong function calling, it targets production-grade applications like long document understanding, RAG systems, and multilingual customer support.

The model's strategic positioning emphasizes European data sovereignty, with training on 3,000 NVIDIA H200 GPUs and deployment partnerships with major cloud providers. While it achieves strong benchmark scores on general knowledge (MMLU 85.5%) and code generation (HumanEval 92%), it explicitly lacks chain-of-thought reasoning, placing it behind specialized reasoning models on PhD-level scientific questions (GPQA Diamond 43.9%). Its value proposition combines frontier capabilities at $0.50/$1.50 per million tokens—approximately 10x cheaper than Claude Opus 4.6—making it compelling for high-volume enterprise workloads where reasoning depth is secondary to reliability, multilingual support, and cost efficiency.