# Claude Haiku 5.5 is now generally available in GitHub Copilot

GitHub has made Anthropic's Claude Haiku 5.5 generally available across GitHub Copilot, including the Copilot app, CLI, and code. The model is designed for fast, high-volume tasks such as subagents and quick edits.

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Source: GitHub · Published 10/7/2026, 14:01:28

Anthropic's Claude Haiku 5.5 is now generally available across GitHub Copilot, accessible in the GitHub Copilot app, the CLI, and code. GitHub positions the lightweight model for fast, high-volume workloads, including subagents, quick code edits, and terminal tasks.

According to GitHub, early testing detailed in its [changelog](https://github.blog/changelog/2026-10-07-claude-haiku-5-5-in-github-copilot/) showed that Claude Haiku 5.5 matched Claude Sonnet 5 on many coding tasks while requiring significantly fewer tokens and steps.

Tags: GitHub Copilot, Claude Haiku 5.5, Anthropic

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