●Change8

Migrating to Mistral Client v2.1.1

Version v2.1.1 introduces 3 breaking changes. This guide details how to update your code.

Released: 3/20/2026

3
Breaking Changes
1
Migration Steps
3
Affected Symbols

⚠️ Check Your Code

If you use any of these symbols, you need to read this guide:

mistral.chat.completemistral.fim.completemistral.agents.complete

Breaking Changes

●Issue #1

The structure of `response.choices[]` has changed for `mistral.chat.complete()`. Users must update their response parsing logic.

●Issue #2

The structure of `response.choices[]` has changed for `mistral.fim.complete()`. Users must update their response parsing logic.

●Issue #3

The structure of `response.choices[]` has changed for `mistral.agents.complete()`. Users must update their response parsing logic.

Migration Steps

  1. 1
    Review and update code that accesses `response.choices[]` in calls to `mistral.chat.complete()`, `mistral.fim.complete()`, and `mistral.agents.complete()` to align with the new structure.

Release Summary

This release updates the Python SDK, introducing breaking changes to the structure of the `response.choices[]` field across chat, FIM, and agent completion endpoints.

Need More Details?

View the full release notes and all changes for Mistral Client v2.1.1.

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