Anthropic's Claude large language model endured disruptions on 11 days in March 2026, according to its status page, with elevated error rates on flagship Opus 4.6 and Sonnet 4.6 models, authentication glitches, and app issues like unresponsive sessions—stemming from unprecedented demand as the company scales to challenge OpenAI's revenue dominance. This growth-fueled strain dropped claude.ai uptime below 99% in Q1, fueling trader sentiment that clusters tightly around 6-11 downtime days in May, evidenced by 39% implied probability for 9-11 days and 37% for 6-8. Key swing factors include the pace of capacity expansions versus sustained traffic surges; recent incident-free days on March 30-31 signal potential stabilization, but unresolved scaling bottlenecks could extend volatility into May.