⚡️ @AnthropicAI's Claude Haiku 5.5 is now generally available in GitHub Copilot.
➡️ It's a lightweight model designed for fast, high-volume work like subagents, quick edits, and terminal tasks.
➡️ Our early testing showed that it matched Claude Sonnet 5 on many coding tasks while using significantly fewer tokens and steps.
Try it out in the GitHub Copilot app, CLI, or @code.
https://t.co/aJXg4oAAz8
Haiku 5.5 is generally available in Copilot, aimed at subagents, quick edits and terminal tasks. GitHub's testing found it matched Sonnet 5 on many coding tasks with fewer tokenThe chunk of text a model reads and writes in — roughly three-quarters of a word — and the unit AI usage is billed in.Full definition → and steps.
Terms in this piece · Glossary
token — The chunk of text a model reads and writes in — roughly three-quarters of a word — and the unit AI usage is billed in.
