A 128B dense open-weight multimodal model handling reasoning, coding, and vision in one set of weights — frontier-adjacent coding at mid-tier prices, self-hostable under a modified MIT license.
Verdict
Best self-hostable multimodal model — European, dense, MIT-licensed.
Quality score
84%
Pricing
$1.50/1M in
$7.50/1M out
Speed
Balanced
Best for self-hostable european multimodal coding
Context
256k tokens
Released April 29, 2026 (model ID mistral-medium-3-5-26-04). Pricing verified on docs.mistral.ai. Le Chat Pro $14.99/mo does not include API usage.
Mistral Small 3.1 is best for ultra-high-volume classification, summarisation, and lightweight vision tasks. It is a strong fit when that workflow matters more than the tradeoffs around budget pricing and very fast speed.
When should I avoid Mistral Small 3.1?
You need reliable multi-step reasoning or coding quality — it won't hold up.
What is a cheaper alternative to Mistral Small 3.1?
GPT-5.6 Terra is the lower-cost option to compare first when you want a similar workflow fit with less token spend.
What is a faster alternative to Mistral Small 3.1?
Mistral Medium 3.5 is the better pick when response time matters more than maximum depth or premium quality.
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