GitHub on X: "🆕 @AnthropicAI's Claude Sonnet 5.5 is now generally available in GitHub Copilot. Designed for well-scoped everyday work like building features and fixing bugs, Claude Sonnet 5.5 stood out for its efficiency in our early testing: It matched Sonnet 5 on coding tasks while using signif… / X

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🆕 @AnthropicAI's Claude Sonnet 5.5 is now generally available in GitHub Copilot. Designed for well-scoped everyday work like building features and fixing bugs, Claude Sonnet 5.5 stood out for its efficiency in our early testing: It matched Sonnet 5 on coding tasks while using significantly fewer steps, tokens, and tool calls. Plus, it finished tasks noticeably faster. ⚡️ Try it out in the GitHub Copilot app, CLI, and @code. github.blog/changelog/2026…
Claude Sonnet 5.5 in GitHub Copilot - GitHub Changelog
From github.blog
6:19 PM · Sep 28, 2026
82.9K
Views
41
Al-Muwahid
@unit0r
22h
This is a big upgrade for everyday coding. Fewer steps, fewer tokens, fewer tool calls, and faster execution while keeping similar coding performance 🔥
Dhanush N
@Dhanush_Nehru
22h
you guys are so fast btw I think all these companies have agreements within themselves before releasing things to public
1
grizzly
@Michael65309224
21h
FOR STUDENT COPILOT PLAN ADD ATLEAST GPT-6-LUNA

🆕 @AnthropicAI's Claude Sonnet 5.5 is now generally available in GitHub Copilot. Designed for well-scoped everyday work like building features and fixing bugs, Claude Sonnet 5.5 stood out for its efficiency in our early testing: It matched Sonnet 5 on coding tasks while using significantly fewer steps, tokens, and tool calls. Plus, it finished tasks noticeably faster. ⚡️ Try it out in the GitHub Copilot app, CLI, and @code. github.blog/changelog/2026…

Claude Sonnet 5.5 in GitHub Copilot - GitHub Changelog

From github.blog

6:19 PM · Sep 28, 2026

82.9K

Views