Mistral Small 3.1 logo

Mistral Small 3.1

Paid

The best model in its weight class.

4.5
Inputs: text, imageOutputs: text
Type
Saas
Founded
2023
Company
Mistral AI

About Mistral Small 3.1

Mistral Small 3.1 is a lightweight open-source AI model released under Apache 2.0, offering improved text performance, multimodal understanding (image inputs), and a 128k token context window. It outperforms Gemma 3 and GPT-4o Mini while achieving inference speeds of 150 tokens per second. The model can run on a single RTX 4090 or a Mac with 32GB RAM, making it suitable for on-device and enterprise applications. It supports function calling, fine-tuning for specialized domains, and is available via API on La Plateforme and as downloadable base and instruct checkpoints.

Key Features

Lightweight and runs on single RTX 4090 or 32GB RAM Mac
Fast inference at 150 tokens per second
Multimodal understanding (text + images)
128k token context window
Open source under Apache 2.0 license
Low-latency function calling
Supports fine-tuning for specialized domains
Available as base and instruct checkpoints

Pros & Cons

Pros
  • Outperforms comparable models like Gemma 3 and GPT-4o Mini
  • Open source under Apache 2.0
  • Lightweight and efficient for on-device deployment
  • Multimodal capabilities with image input
  • Long context window of 128k tokens
  • High inference speed (150 tok/s)
  • Supports function calling and fine-tuning
  • Available via API and downloadable

Best For

Instruction followingConversational assistanceImage understanding and analysisFunction calling for automated workflowsFine-tuning for legal, medical, and technical supportDocument verificationOn-device image processingVisual inspection for quality checks

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FAQ

What hardware is required to run Mistral Small 3.1?
It can run on a single RTX 4090 or a Mac with 32GB RAM.
How does Mistral Small 3.1 compare to other models?
It outperforms Gemma 3 and GPT-4o Mini while delivering 150 tokens per second.
What input types does Mistral Small 3.1 support?
It supports text and image inputs (multimodal).
How can I access Mistral Small 3.1?
It is available via API on Mistral AI's La Plateforme, and as downloadable checkpoints on Hugging Face.