Anthropic change history: Elevated errors for Claude Fable 5

Claude Fable 5 requests on claude.ai experienced elevated errors, rated major. The incident started at 2026-08-14 23:57 UTC and resolved at 2026-08-15 00:27 UTC (30 min). Anthropic separately reported impact from 20:00 Aug 14, 2026 to 00:11 Aug 15 , 2026 UTC; no specific cause or fix was disclosed.