{"version":"0.57.9","date":"2026-02-07","dateFormatted":"February 7, 2026","url":"https://docs.factory.ai/changelog/release-notes#v0.57.9","jsonUrl":"https://docs.factory.ai/changelog/releases/0.57.9.json","summary":"Opus 4.6 Fast Mode and pricing update","surfaces":["cli"],"changes":[{"type":"improvement","surface":"cli","title":"Opus 4.6 Fast Mode"},{"type":"improvement","surface":"cli","title":"Opus 4.6 Fast Mode promo pricing"}],"security":[],"deprecations":[],"contentText":"Improvements\n\n- Opus 4.6 Fast Mode - Renamed from \"Opus 4.6 Fast\" to \"Opus 4.6 Fast Mode\" for clarity\n- Opus 4.6 Fast Mode promo pricing - Updated Model Multiplier from 12x to 6x promotional rate"}