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Pixtral 12B

Available · Language, Multimodal · Milestone

Pixtral 12B is a multimodal model from Mistral AI that takes images and text and outputs text, combining a new 400M-parameter vision encoder with a 12B decoder based on Mistral Nemo. It was released under Apache 2.0 and offered on la Plateforme as pixtral-12b-2409 and in le Chat, and processes images at their native resolution within a 128k-token context window. [1] [2] [3]Modalities Primary source

Timeline of Pixtral 12B →

Claims and evidence

  • Released Other sources give: [3]release date Date on the docs model page. The blog post and the changelog give 2024-09-17 for the release on la Plateforme and le Chat. Primary source[1]page date; Use [4]September 17, 2024 [5]Eye of the Tiger - Pixtral on le Chat
  • Deprecated Primary source[6]Deprecated & retired models table, row Pixtral 12B [3]Deprecation date
  • Retired Primary source[6]Deprecated & retired models table, row Pixtral 12B
  • Status AvailableApache 2.0 weights remain downloadable from the mistralai Hugging Face organisation; the API endpoint pixtral-12b-2409 was deprecated on 2025-12-02 and retired on 2025-12-31. Primary source[7] [6]Deprecated & retired models table, row Pixtral 12B
  • Replaced by Ministral 3Mistral names Ministral 3 14B, a variant of the Ministral 3 record. Primary source[6]Deprecated & retired models table, row Pixtral 12B, Alternative [3]Replacement
  • Derived from (other) Mistral NeMoThe 12B multimodal decoder is built on Mistral Nemo 12B and paired with a new 400M vision encoder trained from scratch; the technical report says Mistral-Nemo 12B-Instruct initialised the decoder in its ablations. Primary source[1]Pixtral 12B in short: Architecture [2]section 2.1
  • Change · Modality Adds image input through a new 400M-parameter vision encoder trained from scratch; images are processed at their native resolution and aspect ratio.Compared with Mistral NeMo Primary source[1]
  • Change · Architecture Pairs that encoder with a 12B multimodal decoder built on Mistral Nemo; Mistral says it keeps text-only capabilities and can replace Mistral Nemo 12B as a drop-in.Compared with Mistral NeMo Primary source[1] [2]section 2.1
  • Input text, image Primary source[3]Modalities [1]Pixtral 12B in short
  • Output text Primary source[3]Modalities
  • Open weights YesApache 2.0. Primary source[1]Use; mistral-inference [7]
  • Context window 128K tokens Primary source[1]Architecture [3]Context
  • Parameters 12B12B multimodal decoder plus a 400M-parameter vision encoder. Primary source[1]Pixtral 12B in short: Architecture [7]Key features [3]Weights table
  • Access API, consumer app, Open-weights download Primary source[1]How to run Pixtral?

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