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xAI: Migrate from /v1/messages endpoint before Feb 20, 2026 deprecation #351

@mikehostetler

Description

@mikehostetler

Summary

xAI is deprecating the Messages endpoint (/v1/messages) on February 20, 2026. After that date, requests will return a 410 Gone error.

Required Action

Migrate to either:

  • gRPC-based Chat service
  • RESTful Responses API

Documentation

https://docs.x.ai/docs/guides/chat

Original Email

The Messages endpoint (/v1/messages) will be removed from the xAI API on February 20, 2026.
After that date, any requests sent to /v1/messages will return a 410 Gone error.

We strongly recommend all xAI API users to migrate to our gRPC-based Chat service or RESTful Responses API, as these will have access to our latest features.

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