Upcoming deprecation of Opus 4.6 (fast)
The GitHub Changelog has published an announcement regarding the upcoming deprecation of Opus 4.6 (fast). The provided source text is limited to this statement and does not offer additional context, such as the effective date of deprecation, the rationale behind the decision, or any recommended alternatives or migration paths for users. The announcement was made on June 18, 2026.
// why it matters
Developers using Opus 4.6 (fast) should note its upcoming deprecation, necessitating future adjustments.