French AI lab Mistral is getting into the reasoning AI model game. On Tuesday morning, Mistral announced Magistral, its first family of reasoning models. Like other reasoning models — e.g. OpenAI’s o3 and Google’s Gemini 2.5 Pro — Magistral works through problems step-by-step for improved consistency and reliability across topics such as math and physics. Magistral comes in two flavors: Magistral Small and Magistral Medium. Magistral Small is 24 billion parameters in size, and is available for download from the AI dev platform Hugging Face under a permissive Apache 2.0 license. (Parameters are the internal components of a model that guide its behavior.) Magistral Medium, a more capable model, is in preview on Mistral’s Le Chat chatbot platform and the company’s API, as well as third-party partner clouds. “[Magistral is] suited for a wide range of enterprise use cases, from structured calculations and programmatic logic to decision trees and rule-based systems,” writes Mistral in the blog post. “[The models are] fine-tuned for multi-step logic, improving interpretability and providing a traceable thought process in the user’s language.” Founded in 2023, Mistral is a frontier model lab building a range of AI-powered services, including the aforementioned Le Chat and mobile apps.

Full report : Mistral launches its first reasoning models: Magistral Small, on Hugging Face under an Apache 2.0 license, and Magistral Medium, in preview on Mistral’s Le Chat.