AI Radar

Magistral Medium

Retired · Language, Reasoning · Milestone

Magistral Medium is the enterprise variant of Magistral, which Mistral AI calls its first reasoning model, trained with reinforcement learning on top of Mistral Medium 3. It launched as a preview in Le Chat and via API on La Plateforme and Amazon SageMaker; Mistral AI highlights reasoning in the user's language with a traceable thought process. [1] [2] Primary source

Timeline of Magistral Medium →

Claims and evidence

  • Released Offered as a preview version in Le Chat and on La Plateforme at release. Primary source[1]page date; Availability [3]June 10, 2025 [4]release date
  • Deprecated Primary source[5]Deprecated table, Magistral Medium 1.0 (magistral-medium-2506)
  • Retired Other sources give: [6]Model Lifecycle table, Retirement Date The Mistral Legal Center lifecycle table gives October 31, 2025 as retirement date, the date the docs models overview lists as deprecation date. Primary source[5]Deprecated table, Magistral Medium 1.0 (magistral-medium-2506) [4]Retirement date
  • Status RetiredThe docs models overview and the docs model page show the API model as retired on 2025-11-30; no weights were published. On 2026-10-01 the Legal Center lifecycle table still showed status Active, with October 31, 2025 as retirement date. Primary source[5]Deprecated table, Magistral Medium 1.0 (magistral-medium-2506) [4]status Retired
  • Replaced by Mistral Medium 3.5Replacement named for the API model when checked on 2026-10-01. Primary source[5]Deprecated table, Magistral Medium 1.0, Alternative [4]Replacement
  • Derived from (fine tune) Mistral Medium 3Trained for reasoning on top of Mistral Medium 3 with reinforcement learning alone, without a supervised cold start. Primary source[2]abstract
  • Change · Reasoning Adds step-by-step reasoning, trained with reinforcement learning alone on top of Mistral Medium 3.Compared with Mistral Medium 3 Primary source[2]abstract
  • Change · Context length The docs list a 40k context window, against 128k for Mistral Medium 3.Compared with Mistral Medium 3 Primary source[4]Context [7]Context
  • Input text Primary source[4]Modalities
  • Output text Primary source[4]Modalities
  • Context window 40k tokens Primary source[4]Context
  • Parameters Not disclosedNot disclosed by Mistral AI. No claim madeNo source
  • Access consumer app, API, cloud partnerPreview in Le Chat and on La Plateforme at launch, also on Amazon SageMaker; IBM watsonx, Azure AI and Google Cloud Marketplace announced as coming. Primary source[1]Availability

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