# GitHub Grok 4.5 is now available in GitHub Copilot

- Product: GitHub (https://whatsnew.fyi/product/github)
- Vendor: GitHub
- Date: 2026-07-28
- Original notes: https://github.blog/changelog/2026-07-28-grok-4-5-is-now-available-in-github-copilot
- Permalink: https://whatsnew.fyi/product/github/releases/2026-07-28-grok-4.5-is-now-available-in-github-copilot

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Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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Grok 4.5, xAI’s latest reasoning model, is now rolling out in GitHub Copilot. It is designed for fast, agentic coding and complex multi-step workflows, with a context window of up… The post Grok 4.5 i…

- **added** — Grok 4.5 model from xAI is now available in GitHub Copilot for agentic coding and complex multi-step workflows