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Mistral AI
Released April 2026
Mistral Medium 3.5
Agentic workflows, coding, reliable multi-tool calling
Reasoning
Tool Use
Vision
About this model
Mistral Medium 3.5 is a 128B parameter instruction-following model optimized for agentic workflows, coding, and complex multi-step reasoning. It features a custom vision encoder for variable image sizes, configurable reasoning effort per request, and is particularly strong at reliable multi-tool calling. Open-weight and self-hostable on four GPUs.
Context Window
262K
Input Cost
$1.50/M
Output Cost
$7.50/M
Input Types
Text, Image