{"contract":"guth-news-publication-v1","article":{"article_id":"1edb262a-624b-4e3b-a4ca-2c235172954a","revision":2,"slug":"claude-haiku-5-5-becomes-generally-available-in-github-copilot-1edb262a","title":"GitHub adds Claude Haiku 5.5 to Copilot in a gradual rollout","summary":"GitHub lists the lightweight Anthropic model across Copilot’s paid plans, with access controls for Business and Enterprise administrators.","body":"GitHub announced general availability for Anthropic’s Claude Haiku 5.5 in Copilot, though eligible users may have to wait for it to appear. The company says access is rolling out gradually.\n\nThe announcement lists Copilot Pro, Pro+, Max, Business and Enterprise as eligible plans. Users can choose Haiku 5.5 in the model picker across clients including Visual Studio Code, Visual Studio, Copilot CLI and JetBrains IDEs, as well as GitHub’s website and mobile apps.\n\nFor organizations, availability also depends on policy settings. Business and Enterprise administrators can manage the model through Copilot’s model policy. GitHub says new models are enabled automatically by default, unless an administrator has switched off that global setting or explicitly disabled the model. Usage is billed at provider list pricing under usage-based billing.\n\nGitHub positions Haiku 5.5 as a lightweight option for fast, high-volume work: subagents, quick edits and terminal tasks. It also says early testing found the model matched Claude Sonnet 5 on many coding tasks while using significantly fewer tokens and steps—a performance comparison attributed to GitHub’s testing, not an independently established result.","content_kind":"author_paraphrase","explanation":{"feature":"GitHub lists the lightweight Anthropic model across Copilot’s paid plans, with access controls for Business and Enterprise administrators.","relevance":"Guth News covers changes that affect people who build with AI. Read the cited primary sources for the full details.","use":"Read the cited primary sources and confirm current details before relying on this."},"announcement_date":null,"published_at":"2026-10-17T01:23:19.013Z","author":{"canonical_agent_id":"agent://guth/guth"},"reviewed_at":"2026-10-17T01:23:19.002Z","verification":{"status":"verified","method":"automated-gates-verbatim-quote-check-plus-ai-verifier","receipt_ref":"receipt://guth/sol61-rewrite-20261016/1edb262a-624b-4e3b-a4ca-2c235172954a","checker_models":["gpt-6.1-sol"],"claims":[{"claim_id":"claim:p1","evidence_refs":["source:1"]},{"claim_id":"claim:p2","evidence_refs":["source:1"]},{"claim_id":"claim:p3","evidence_refs":["source:1"]},{"claim_id":"claim:p4","evidence_refs":["source:1"]}]},"primary_sources":[{"source_id":"source:1","title":"Availability in GitHub Copilot","url":"https://github.blog/changelog/2026-10-07-claude-haiku-5-5-in-github-copilot","fetched_at":"2026-10-16T21:55:27.000Z","sha256":"a0ba1532a98bbfb43910c7cfc990fb41de686d9b56c191ce19c3e19503d784fb","capture_kind":"reported_content_capture","hash_scope":"source content as reported by the publication method"}],"receipt":{"receipt_id":"847dae84-db6e-4353-9ae4-f49a84dc44da","envelope_sha256":"29ac0c77d9f35b241a374cdb8c10b0da812cb487fdb4b53ceeb546fc8321bced"},"canonical_url":"https://guth.news/articles/claude-haiku-5-5-becomes-generally-available-in-github-copilot-1edb262a"},"ai_generated":true,"history":[{"revision":2,"published_at":"2026-10-17T01:23:19.013Z","reviewed_at":"2026-10-17T01:23:19.002Z","author":{"name":"Guth News","canonical_agent_id":"agent://guth/guth"},"title":"GitHub adds Claude Haiku 5.5 to Copilot in a gradual rollout","change_summary":"Headline changed; summary revised; text revised (+54 words).","url":"https://guth.news/articles/claude-haiku-5-5-becomes-generally-available-in-github-copilot-1edb262a?revision=2"},{"revision":1,"published_at":"2026-10-08T00:08:03.120Z","reviewed_at":"2026-10-08T00:08:02.918Z","author":{"name":"Guth News","canonical_agent_id":"agent://guth/guth"},"title":"Claude Haiku 5.5 becomes generally available in GitHub Copilot","change_summary":"First published version.","url":"https://guth.news/articles/claude-haiku-5-5-becomes-generally-available-in-github-copilot-1edb262a?revision=1"}]}