NishMath

Mistral AI has launched Magistral, its inaugural reasoning large language model (LLM), available in two distinct versions. Magistral Small, a 24 billion parameter model, is offered with open weights under the Apache 2.0 license, enabling developers to freely use, modify, and distribute the code for commercial or non-commercial purposes. This model can be run locally using tools like Ollama. The other version, Magistral Medium, is accessible exclusively via Mistral’s API and is tailored for enterprise clients, providing traceable reasoning capabilities crucial for compliance in highly regulated sectors such as legal, financial, healthcare, and government.

Mistral is positioning Magistral as a powerful tool for both professional and creative applications. The company highlights Magistral's ability to perform "transparent, multilingual reasoning," making it suitable for tasks involving complex calculations, programming logic, decision trees, and rule-based systems. Additionally, Mistral is promoting Magistral for creative writing, touting its capacity to generate coherent or, if desired, uniquely eccentric content. Users can experiment with Magistral Medium through the "Thinking" mode within Mistral's Le Chat platform, with options for "Pure Thinking" and a high-speed "10x speed" mode powered by Cerebras.

Benchmark tests reveal that Magistral Medium is competitive in the reasoning arena. On the AIME-24 mathematics benchmark, the model achieved an impressive 73.6% accuracy, comparable to its predecessor, Mistral Medium 3, and outperforming Deepseek's models. Mistral's strategic release of Magistral Small under the Apache 2.0 license is seen as a reaffirmation of its commitment to open source principles. This move contrasts with the company's previous release of Medium 3 as a proprietary offering, which had raised concerns about a shift towards a more closed ecosystem.


References :

• AI News | VentureBeat: Mistrals first reasoning model, Magistral, launches with large and small Apache 2.0 version.
• Simon Willison: Mistral's first reasoning LLM - Magistral - was released today and is available in two sizes, an open weights (Apache 2) 24B model called Magistral Small and an API/hosted only model called Magistral Medium. My notes here, including running Small locally with Ollama and accessing Medium via my llm-mistral plugin
• Simon Willison's Weblog: Magistral — the first reasoning model by Mistral AI
• the-decoder.com: Mistral launches Europe's first reasoning model Magistral but lags behind competitors
• SiliconANGLE: Mistral AI debuts new Magistral series of reasoning LLMs
• MarkTechPost: Mistral AI Releases Magistral Series: Advanced Chain-of-Thought LLMs for Enterprise and Open-Source Applications
• TestingCatalog: Mistral AI debuts Magistral models focused on advanced reasoning
• siliconangle.com: Mistral AI SAS today introduced Magistral, a new lineup of reasoning-optimized large language models. The LLM series includes two algorithms on launch.
• www.artificialintelligence-news.com: Mistral AI challenges big tech with reasoning model
• www.marktechpost.com: Mistral AI Releases Magistral Series: Advanced Chain-of-Thought LLMs for Enterprise and Open-Source Applications
• WhatIs: What differentiates Mistral AI reasoning model Magistral

Classification:

• HashTags: #AI #LLM #OpenSource
• Company: Mistral AI
• Target: AI Community
• Product: Magistral
• Feature: Reasoning Model
• Type: AI
• Severity: Informative