Source record

Published by GitHub Changelog (T1 source). The original is at https://github.blog/changelog/2026-07-28-grok-4-5-is-now-available-in-github-copilot.

Pipeline notes

The summary and note below are generated by the signal pipeline — they are Beyond Desk’s reading, not quotations from the source.

xAI's Grok 4.5 reasoning model is rolling out in GitHub Copilot, positioned for fast agentic coding and complex multi-step workflows with a large context window.

A new model landing in a widely used coding assistant, worth noting for those selecting between models for agentic work.

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