Grok 4.5 changelog

Copilot removes Gemini 3.7 Flash, Grok 4.5 and older GPT models

On October 19, 2026 Copilot deprecated Gemini 3.7 Flash (use Gemini 3.8 Flash), Grok 4.5 (use Grok 4.7), and GPT-5.5, GPT-5.4, GPT-5.4 mini and GPT-5 mini.

Who is affected:

Copilot users and integrations pinned to those models.

Action needed:

Switch to the suggested alternatives. Admins may need to enable them.

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 available to EU users

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

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.