Claude Opus 4.6 and Sonnet 4.6 Both Degrade March 17 — 6,800+ Downdetector Complaints, Sonnet Down 3.5 Hours During GTC Week

r/ClaudeAI / status.claude.com·medium signal

Claude experienced multiple elevated-error incidents on March 17: Sonnet 4.6 was degraded for 3 hours and 30 minutes starting at 8:08 AM PT, while Opus 4.6 had two separate incidents (1 min at 9:48 AM and 25 min at 11:38 AM). Downdetector logged 6,800+ user complaints by 1:03 PM PT — 44% centered on Claude Chat, with additional reports from Claude Code and mobile app users. The outage coincides with peak GTC-week demand after NVIDIA publicly named Claude Code the first 'agentic model' before tens of thousands of attendees.