Grok 4.5 reasoning model available in GitHub Copilot
Grok 4.5, xAI's latest reasoning model, is now rolling out in GitHub Copilot for various SKUs, offering fast, agentic coding with a 500,000 token context window. It supports text and image inputs and is designed for complex, time-sensitive workflows, showing strong performance in internal testing. Administrators must enable the Grok 4.5 policy, which is off by default, to access this model.
- →Integrate Grok 4.5 reasoning model into GitHub Copilot
- →Grok 4.5 availability and billing
- →Administrator policy required for Grok 4.5 access
Features (1) ›
- Integrate Grok 4.5 reasoning model into GitHub Copilot
GitHub Copilot is integrating Grok 4.5, xAI's latest reasoning model, designed for fast, agentic coding and complex multi-step workflows. It features a large context window, supports text and image inputs, and offers different reasoning effort levels. Internal testing indicates strong performance on terminal-based coding tasks and tool dispatching.
Notes (2) ›
- Grok 4.5 availability and billing
Grok 4.5 is available for Copilot Pro, Pro+, Max, Business, and Enterprise SKUs and will be billed at provider list pricing under usage-based billing. Users can select the model through a model picker in various IDEs and CLI tools.
- Administrator policy required for Grok 4.5 access
Copilot Enterprise and Copilot Business plan administrators must explicitly enable the Grok 4.5 policy in Copilot settings, as it is disabled by default. The rollout is gradual, and users may need to check back if the model is not immediately visible.
https://github.blog/changelog/2026-07-28-grok-4-5-is-now-available-in-github-copilot
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