Activefastllm Proprietary

Mistral Small 3.1

by Mistral AI· Released March 2025· Cutoff March 2025

Mistral Small 3.1 is a fast, efficient language model optimized for low-latency applications and on-device deployment. It offers strong performance on reasoning, coding, and multilingual tasks while maintaining a small footprint. This model is part of Mistral's 'Small' lineup, balancing quality and speed for cost-sensitive use cases.

Official Site API Docs

Input cost

$0.20 per 1M tokens

Output cost

$0.60 per 1M tokens

Context window

128K tokens

Max output

—

Modalities

text

License

proprietary

Capabilities

Function CallingCode GenerationStreamingJSON ModeMultilingual SupportReasoning

Best For

Low-latency, cost-efficient applications requiring strong reasoning and coding capabilities.

Strengths

Very fast inference speed
Strong reasoning and coding performance for its size
128K context window
Multilingual support
Cost-effective pricing

Limitations

Not multimodal (text-only)
Smaller parameter count may limit complex reasoning compared to larger models
No vision or image input
May not match frontier models on highly specialized tasks

Use Cases

Chatbots and virtual assistants

Code generation and debugging

Content summarization

Data extraction and parsing

Customer support automation

Multilingual translation and localization

Real-time applications requiring low latency

Improvements Over Previous Model

Improved reasoning and coding benchmarks over Mistral Small 3
Extended context window from 32K to 128K tokens
Lower latency and faster inference
Enhanced multilingual capabilities
Better function calling and JSON mode reliability

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