Mistral Small 4

Available

Mistral AIOpen source

Mistral's March 2026 Small release: the first Mistral model to unify reasoning (Magistral), multimodal understanding (Pixtral), and agentic coding (Devstral) into one Apache 2.0 model. A 119B-total / ~6B-active Mixture-of-Experts (128 experts, 4 active per token) with native text+image input, a 256K context, and a configurable reasoning_effort toggle for fast or deep responses. API pricing is $0.15 / $0.60 per million input/output tokens.

Official page ↗Model card ↗

Specifications

License: Open source · Apache 2.0
Weights: Downloadable
Architecture: Mixture-of-Experts
Parameters: 119B · 6B active
Context window: 256K tokens
Max output: 32K tokens
Knowledge cutoff: —
Price (in / out, $/M): $0.15 / $0.6
Modalities: TextVisionCode

Benchmarks

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Vendor-reported figures are claims until independently verified. See methodology.