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xAI Docs

xAI · Docs

xAI Docs

July 8, 2026 at 6:17 PM UTC

xAI Docs release notes (July 2025)

Changelog

xAI Docs release notes (July 2025)

New pages

  • Added /developers/grok-4-5 with overview, API usage, and deployment details for the new model.

Models

  • Updated all references across documentation from grok-4.3 and grok-build-0.1 to grok-4.5.
  • Revised model selection guidance to recommend Grok 4.5 for chat and code use cases.
  • Removed dedicated Grok Build and older Grok 4.3 model links.

Pricing

  • /developers/models and /developers/pricing now state that model pricing is loaded dynamically.
  • Removed static pricing tables for Chat API, Code API, Imagine, and Voice endpoints.

Reasoning

  • Updated /developers/model-capabilities/text/reasoning for Grok 4.5: reasoning_effort defaults to "high" and cannot be disabled.
  • Removed "none" option and adjusted table of settings.

API examples and tools

  • Updated code samples, cURL commands, and SDK snippets on 40+ pages (including generate-text, web-search, x-search, file handling, structured outputs, context compaction, citations, and advanced usage) to use grok-4.5.
  • Updated recommended model notes in chat-with-files and related capability pages.

Release notes

  • Added July section documenting Grok 4.5 on the release notes page.
Older release← Jul 8, 14:17 UTCNewer release→ Jul 8, 20:17 UTC
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