Grok 4.5 changelog

Every change to Grok 4.5 that Modelpeers has recorded, newest first, each with the source it came from. The record starts Jul 8, 2026.

All (4)Releases (3)Retiring (1)

July 2026

GitHub Copilot and Grok 4.5

2 products from GitHub and SpaceXSI

Now availableJul 28, 2026

Grok 4.5 available in GitHub Copilot

Grok 4.5 rolled out to Copilot Pro, Pro+, Max, Business and Enterprise, billed at provider list pricing. The policy is off by default for organizations.

Who is affected:: Copilot users who want xAI models.
What to do:: Business and Enterprise admins must enable the Grok 4.5 policy.

Grok 4.5

Model at SpaceXSI

Now availableJul 17, 2026

Grok 4.5 available to EU users

Grok 4.5 became available in the xAI API console for EU users.

Grok 4.5

Model at SpaceXSI

New releaseJul 8, 2026

Grok 4.5 released on the xAI API

Grok 4.5 became available on the xAI API at $2 per 1M input tokens and $6 per 1M output tokens, with low, medium or high reasoning effort.

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