We will deprecate Opus 4.6 (fast) across all GitHub Copilot experiences (including Copilot Chat, inline edits, ask and agent modes, and code completions), on June 29th, 2026:
Model
Deprecation date
Suggested alternative
Opus 4.6 (fast)
Upcoming deprecation of Opus 4.6 (fast) - GitHub Changelog
We will deprecate Opus 4.6 (fast) across all GitHub Copilot experiences (including Copilot Chat, inline edits, ask and agent modes, and code completions), on June 29th, 2026: Model Deprecation date…
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