Mistral AI launches Magistral-Small-2509: New 24B multimodal model
Mistral AI presents Magistral-Small-2509, a new 24-billion parameter multimodal AI model that integrates image comprehension and structured reasoning.

What happened?
Mistral AI has launched Magistral-Small-2509, a new multimodal reasoning AI model with 24 billion parameters. The model combines text and image comprehension through a new visual encoding module and is equipped with dedicated [THINK]/[/THINK] tags to structure its internal reasoning process.
Key facts
| Parameterstorlek | 24 miljarder (24B) |
|---|---|
| AIME24-resultat | 86,14 % pass@1 |
| GPQA Diamond-resultat | Över 70 % |
| Publiceringsdatum | 21 september 2026 |
Why it matters
By integrating image comprehension into a 24-billion parameter model, the barrier for complex multimodal applications is lowered. The model achieves 86.14% pass@1 on the AIME24 mathematics test—an increase of 15.6 percentage points compared to the previous version—and exceeds 70% on the GPQA Diamond knowledge test.
Who is affected?
The model is relevant to AI developers and companies looking to run advanced visual and text-based AI locally or on resource-constrained servers. The lower parameter count makes the technology more accessible to smaller players requiring high reasoning capabilities without extreme hardware requirements.
Impact on the EU
The model is developed by the French firm Mistral AI and is fully available to European and Swedish users. Since Mistral AI is headquartered within the EU, its development adheres to European regulations regarding data security and AI legislation (the EU AI Act).
What else you should know
Magistral-Small-2509 was released in a quantized 4-bit version via Unsloth (unsloth-bnb-4bit), making it possible to run the 24-billion parameter model on consumer hardware with limited VRAM.
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