alt.freeweights.mistral / Pixtral-12B-Base-2409
From: mistralai <huggingface.co/mistralai>Newsgroups: alt.freeweights.mistralSubject:

Pixtral-12B-Base-2409

Date: 2026-11-15Commit: be6c64aSigned: 2DC28CC7B26A283B ✓

Model. Safetensors weights, 25.4 GB in all. Published by mistralai under Apache-2.0.

mistral25.4GBPixtral-12B-Base-2409safetensorspermissive
FactsParamsnot statedSize25.4 GBFormatssafetensorsTasknot taggedLicenseApache-2.0From sourcepermissive
$ fw get mistralai/Pixtral-12B-Base-2409
# manifest sha256 b591f6dcfe4e… · 25.4 GB · 5 files
$ fw verify ./Pixtral-12B-Base-2409 mistralai/Pixtral-12B-Base-2409
From sourceHosted (signed)mistralai/Pixtral-12B-Base-2409Last check: 2026-11-15 04:16 UTC

Get help: custom fine-tune or private deploy. We review your setup before we quote.

Works with

Runs with

Ranked by fit to this model (safetensors), then by GitHub stars.

Overview

Size
25.4 GB
Weights
25.4 GB (safetensors)
Parameters
not stated
Formats
safetensors
Task
not tagged
License
Apache-2.0 (permissive)
Files
5, each with a sha256
Publisher
mistralai
Added
2026-11-15
Section
alt.freeweights.mistral
Lineage

Original release from the publisher.

Where these bytes come from
Publisher at the pinned commit→You

Sources are tried in order. A file counts only when its size and sha256 match the manifest. Sources are checked when you ask for them, not on a timer.

Sources
BadgeHostLast checkResult
From sourcehuggingface.co2026-11-15 04:16 UTCpassed

Model card

From the publisher at commit be6c64a. Shown as plain text with links; images open at the publisher.

Pixtral-12B-Base-2409#

The Pixtral-12B-Base-2409 is the pretrained base model of Pixtral-12B-2409 consisting of 12B parameters plus a 400M parameter vision encoder.

For more details about this model please refer to our release blog post.

Feel free to try it here

Key features#

  • Natively multimodal, trained with interleaved image and text data
  • 12B parameter Multimodal Decoder + 400M parameter Vision Encoder
  • Supports variable image sizes
  • Leading performance in its weight class on multimodal tasks
  • Maintains state-of-the-art performance on text-only benchmarks
  • Sequence length: 128k
  • License: Apache 2.0

Usage Examples#

We recommend using Pixtral with the vLLM library to implement production-ready inference pipelines with Pixtral.

Installation

Make sure you install vLLM >= v0.6.2:

pip install --upgrade vllm

Also make sure you have mistral_common >= 1.4.4 installed:

pip install --upgrade mistral_common

You can also make use of a ready-to-go docker image.

Example

from vllm import LLM
from vllm.sampling_params import SamplingParams
from vllm.inputs.data import TokensPrompt
import requests
from PIL import Image
from io import BytesIO
from vllm.multimodal import MultiModalDataBuiltins

from mistral_common.protocol.instruct.messages import TextChunk, ImageURLChunk

model_name = "mistralai/Pixtral-12B-Base-2409"
sampling_params = SamplingParams(max_tokens=8192)

llm = LLM(model=model_name, tokenizer_mode="mistral")

url = "https://huggingface.co/datasets/patrickvonplaten/random_img/resolve/main/yosemite.png"
response = requests.get(url)
image = Image.open(BytesIO(response.content))

prompt = "The image shows a"

user_content = [ImageURLChunk(image_url=url), TextChunk(text=prompt)]

tokenizer = llm.llm_engine.tokenizer.tokenizer.mistral.instruct_tokenizer
tokens, _ = tokenizer.encode_user_content(user_content, False)

prompt = TokensPrompt(
    prompt_token_ids=tokens, multi_modal_data=MultiModalDataBuiltins(image=[image])
)
outputs = llm.generate(prompt, sampling_params=sampling_params)

print(outputs[0].outputs[0].text)
# ' view of a river flowing through the landscape, with prominent rock formations visible on either side of the river. The scene is captured using the UWA 14-24mm zoom lens, which provides a wide-angle perspective,
# allowing for a comprehensive view of the surroundings. The photo is credited to Greg Dowdy.
Mistral-inference#

We recommend using mistral-inference to quickly try out / "vibe-check" Pixtral.

Install

Make sure to have mistral_inference >= 1.4.1 installed.

pip install mistral_inference --upgrade

Download

from huggingface_hub import snapshot_download
from pathlib import Path

mistral_models_path = Path.home().joinpath('mistral_models', 'Pixtral')
mistral_models_path.mkdir(parents=True, exist_ok=True)

snapshot_download(repo_id="mistralai/Pixtral-12B-Base-2409", allow_patterns=["params.json", "consolidated.safetensors", "tekken.json"], local_dir=mistral_models_path)

Python

You can also run the model in a Python shell as follows.

from mistral_inference.transformer import Transformer
from mistral_inference.generate import generate

from mistral_common.tokens.tokenizers.mistral import MistralTokenizer
from mistral_common.protocol.instruct.messages import TextChunk, ImageURLChunk

mistral_models_path = "/mnt/vast/shared/william/pixtral_pretrain_release"
tokenizer = MistralTokenizer.from_file(f"{mistral_models_path}/tekken.json")
model = Transformer.from_folder(mistral_models_path)

url = "https://huggingface.co/datasets/patrickvonplaten/random_img/resolve/main/yosemite.png"
prompt = "The above image presents a"

user_content = [ImageURLChunk(image_url=url), TextChunk(text=prompt)]

tokens, images = tokenizer.instruct_tokenizer.encode_user_content(user_content, False)

out_tokens, _ = generate(
    [tokens],
    model,
    images=[images],
    max_tokens=256,
    temperature=0.35,
    eos_id=tokenizer.instruct_tokenizer.tokenizer.eos_id,
)
result = tokenizer.decode(out_tokens[0])

print("Prompt:", prompt)
print("Completion:", result)

Limitations#

The Pixtral model does not have any moderation mechanisms. We're looking forward to engaging with the community on ways to make the model finely respect guardrails, allowing for deployment in environments requiring moderated outputs.

The Mistral AI Team#

Albert Jiang, Alexandre Sablayrolles, Alexis Tacnet, Alok Kothari, Antoine Roux, Arthur Mensch, Audrey Herblin-Stoop, Augustin Garreau, Austin Birky, Bam4d, Baptiste Bout, Baudouin de Monicault, Blanche Savary, Carole Rambaud, Caroline Feldman, Devendra Singh Chaplot, Diego de las Casas, Diogo Costa, Eleonore Arcelin, Emma Bou Hanna, Etienne Metzger, Gaspard Blanchet, Gianna Lengyel, Guillaume Bour, Guillaume Lample, Harizo Rajaona, Henri Roussez, Hichem Sattouf, Ian Mack, Jean-Malo Delignon, Jessica Chudnovsky, Justus Murke, Kartik Khandelwal, Lawrence Stewart, Louis Martin, Louis Ternon, Lucile Saulnier, Lélio Renard Lavaud, Margaret Jennings, Marie Pellat, Marie Torelli, Marie-Anne Lachaux, Marjorie Janiewicz, Mickaël Seznec, Nicolas Schuhl, Niklas Muhs, Olivier de Garrigues, Patrick von Platen, Paul Jacob, Pauline Buche, Pavan Kumar Reddy, Perry Savas, Pierre Stock, Romain Sauvestre, Sagar Vaze, Sandeep Subramanian, Saurabh Garg, Sophia Yang, Szymon Antoniak, Teven Le Scao, Thibault Schueller, Thibaut Lavril, Thomas Wang, Théophile Gervet, Timothée Lacroix, Valera Nemychnikova, Wendy Shang, William El Sayed, William Marshall

Files

5 files · 25.4 GBWeights 25.4 GB (safetensors). Sizes and sha256 from the signed manifest.
Hide all 5 files with their sha256
FileSizesha256
.gitattributes1.57 KBa1533fad1fb49e1230aff61a60028ea63bc924b4cc4501447351b50b9c840683
README.md6.26 KBb6e02e1744aaf9e91b40a061336bde6c80286d3b6c8edd98e0a60a05dce9b93a
consolidated.safetensors25.4 GB07bddad7ea582bae38a705f33000c734f87cabcd18f3ca32f949197d0ead5598
params.json552 B43507196e4bffb6a6fdf6b37a6c44eab3c9954ad28a0d485dee16195ac79b1e4
tekken.json19.3 MB386b1f98fba69b38c3de512a4eb602dc69a95dae0e54e6ce048ea3e29a2627a8
VersionsEach time the pinned upstream commit or file list changed in this repo. Newest first.
Upstream commitDateContents
be6c64aa72 pinned now2026-11-15 04:16 UTC5 files · 25.4 GB

Use it

$ fw get mistralai/Pixtral-12B-Base-2409
# manifest sha256 b591f6dcfe4e… · 25.4 GB · 5 files
$ fw verify ./Pixtral-12B-Base-2409 mistralai/Pixtral-12B-Base-2409
fw.pyChecks the signature and every sha256, tries each source in order, resumes.
$ python3 fw.py get https://freeweights.allternit.com/manifests/mistralai/Pixtral-12B-Base-2409.json --dir ./Pixtral-12B-Base-2409 $ python3 fw.py verify ./Pixtral-12B-Base-2409 ./mistralai__Pixtral-12B-Base-2409.json
hfThe Hugging Face CLI with one setting. Same repo id.
$ HF_ENDPOINT=https://freeweights.allternit.com hf download mistralai/Pixtral-12B-Base-2409 --revision be6c64aa72fd74f021925615de2e70f1443e0753 --local-dir ./Pixtral-12B-Base-2409

License

Name
Apache License 2.0
Id
Apache-2.0
Class
Permissive
Redistribution
yes
Listing
Hosted (signed)
Decided
License as declared by the publisher. No person read it. 2026-11-15
Text in
README.md
Text sha256
b6e02e1744aaf9e91b40a061336bde6c80286d3b6c8edd98e0a60a05dce9b93a
Terms gate
No extra terms beyond the license.

Read the license text

Licenses are checked against the license table. A custom license passes only after a person reads it.

Provenance

From: mistralai <huggingface.co/mistralai>Newsgroups: alt.freeweights.mistralSubject: Pixtral-12B-Base-2409Date: 2026-11-15Commit: be6c64aSigned: 2DC28CC7B26A283B ✓
Upstream
mistralai/Pixtral-12B-Base-2409
Pinned commit
be6c64aa72fd74f021925615de2e70f1443e0753
Manifest
Pixtral-12B-Base-2409.json · .minisig
Manifest sha256
b591f6dcfe4e3d175cf41ab6691d4e1b1dd650b9c01ee0c87e2db780ecb38fac
Signature
minisign, Ed25519, key 2DC28CC7B26A283B
Created
2026-11-15 04:16 UTC
Generator
freeweights-manifest/0.1.0
Takedowns
None.

How to verify

$ curl -O https://freeweights.allternit.com/manifests/mistralai/Pixtral-12B-Base-2409.json $ curl -O https://freeweights.allternit.com/manifests/mistralai/Pixtral-12B-Base-2409.json.minisig $ minisign -Vm Pixtral-12B-Base-2409.json -P RWQ7KGqyx4zCLXtUFOqvfv8L3g+8fpKJ1FsuxPyOYMF+4KufbUxKq1Oq $ shasum -a 256 <file> # compare with the Files tab

A manifest whose signature fails must be rejected. A file whose size or sha256 does not match must be discarded. Verify a download

Model tree

1 model in the catalog name this one as their parent.

Fine-tunes
1
Fine-tunes 1
Get it
Download
$ HF_ENDPOINT=https://freeweights.allternit.com hf download mistralai/Pixtral-12B-Base-2409
Open in Freeweights Studio

Pull, verify and run it in the Allternit app on Desktop, web or phone.

Signed manifest
minisign, key 2DC28CC7B26A283B. Pixtral-12B-Base-2409.json. Provenance. Takedown history: none.
From: bartowski <huggingface.co/bartowski>Subject: alamios_Mistral-Small-3.1-DRAFT-0.5B-GGUF
From: microsoft <huggingface.co/microsoft>Subject: chatbench-mistral-7b
From: NousResearch <huggingface.co/NousResearch>Subject: DeepHermes-3-Mistral-24B-Preview
From: mistralai <huggingface.co/mistralai>Subject: Devstral-Small-2-24B-Instruct-2512
From: mlx-community <huggingface.co/mlx-community>Subject: Devstral-Small-2-24B-Instruct-2512-4bit
From: mlx-community <huggingface.co/mlx-community>Subject: Devstral-Small-2-24B-Instruct-2512-6bit