BackAnthropic·Claude APIDreams now supports Claude Opus 5Saturday, 1 August 2026Official notes on platform.claude.comFull release notesDreams (research preview) now supports Claude Opus 5. See Supported models.Older · Jul 24, 2026On Claude Opus 5, disabling thinking is allowed only at effort high or below: thinking: {"type": "disabled"}…Newer · Aug 3, 2026The Compliance API now returns transcripts of Cowork sessions started on claude.ai web or mobile, in beta…