Mistral AIPixtral

Pixtral 12B

Pixtral 12B combines a 12B language decoder with a 400M vision encoder. It was trained on interleaved images and text and supplies Base and instruction weights under Apache 2.0.

Deprecated API; check access details

Image dimensions affect the token sequence

The vision encoder handles different image sizes and aspect ratios. The release describes 16-by-16 image patches and separate row and image-end tokens. This preserves information about image layout rather than treating every image as an identical fixed grid.Pixtral 12B release announcement

Two checkpoint roles

Pixtral-12B-Base-2409 is the pretrained multimodal checkpoint. Pixtral-12B-2409 is the instruction version. Both support text and image input within an advertised 128K context; they produce text rather than generating images.Pixtral 12B official model cardPixtral 12B primary source

Specifications & access

Pixtral 12B specifications
DetailValue and conditions
StatusDeprecated API; check access details
Launch date
AccessAPI, Downloadable
Model identifiersPixtral-12B-Base-2409Pixtral-12B-2409pixtral-12b-2409
Context window128,000 tokens

The model catalog advertises 128k context for this version. This is not a measured recall limit.

Pixtral 12B model and lifecycle record
Weight licenseApache 2.0Pixtral 12B official model card
Access and lifecycleHosted API deprecated on 2 December 2025. Downloadable weights remain listed.Pixtral 12B model and lifecycle recordPixtral 12B official model card
Parameters12B decoder plus 400M vision encoderPixtral 12B official model card