Revision history
Claude Fable 5.1 revision history
No events on file. Arc G is forward-only; the recorded event log accrues from Arc G adoption (2026-06-04). For the current state of Claude Fable 5.1 see the brain page.
Brain
Forward-only note
Arc G is forward-only. The event log accrues from the Arc G adoption point. Fields with no events post-baseline equal the current cached value and are not independently verified at any prior date.
Machine-readable: /brains/claude-fable-5-1/history.md + REST /v1/brains/42be8c34-3477-4c18-a4ad-b192f6e43609/history.