Fast mode deprecated for Opus 4.7; removal July 2026
1 enhancementThis release1 enhancementImprovements to existing featuresAI-tallied from the release notes
Deprecated fast mode for Claude Opus 4.7, with removal on July 24, 2026. After removal, requests to claude-opus-4-7 with speed: "fast" will return an error. Migrate to fast mode for Claude Opus 4.8.
Fetched July 16, 2026
