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grep -l @opus 4.6 (fast) /news/*.json | wc -l → 1

Opus 4.6 (fast)

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23:58
2026-06-18
github.blog
ai-tools

Upcoming deprecation of Opus 4.6 (fast)

GitHub will deprecate the Opus 4.6 (fast) model across all Copilot experiences on June 29, 2026, urging users to migrate to Opus 4.8 (fast). Enterprise administrators must enable the alternative model…

// co-occurs with top 5 entities
GitHub 1 GitHub Copilot 1 Opus 4.8 (fast) 1 VS Code 1 github.com 1