Claude.ai Major Outage April 28: 12,000+ Users Affected, 78-Minute Downtime Across Chat, Code, and API
r/ClaudeAI·medium signal
Anthropic's Claude platform suffered a major outage on April 28 from 17:34 to 18:52 UTC (78 minutes), with 12,000+ user reports peaking at 5,000 simultaneous complaints. Claude Chat, Claude Code, and the API all experienced failures simultaneously — authentication errors on the web, elevated failure rates on API and Code. Reports on r/ClaudeAI (99 + 77 upvotes, 146 total comments) documented mid-session workflow disruptions.