Mistral introduces Responses API in public preview for building agents

What happened

Today, Mistral is introducing the Responses API in public preview for building agents on Mistral. Each response returns the model’s answer, its reasoning and its tool calls as separate items, so apps can handle each step more easily than with Chat Completions. It works with all chat models hosted by Mistral, including Large 4.

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The story so far

Mistral AI has introduced the Responses API in public preview for building agents, with support for all chat models hosted by Mistral, including Large 4. Each response returns the model’s answer, reasoning and tool calls as separate items. Mistral said this structure makes it easier for applications to handle individual steps than with Chat Completions.