Upcoming deprecation of Opus 4.6 (fast)

GitHub Changelog Developers & Open Source 06/19/2026, 07:58 Score 7/10

Summary

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… The post Upcoming deprecation of Opus 4.6 (fast) appeared first on The GitHub Blog .

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