Anthropic’s Claude large language model maintains strong uptime through redundant cloud infrastructure on AWS and Google Cloud, with official status data showing 99.7%+ availability over recent periods. Most November 2026 incidents have been brief degraded performance or connector-specific errors, such as the ongoing Microsoft 365 integration issue reported November 12 and the 26-minute Fable 5.1 slowdown on November 8, both resolved without widespread core API or chatbot disruption. These patterns reflect mature scaling practices and rapid mitigation, positioning trader consensus around fewer than five full downtime days for the month. Key upcoming factors include any escalation in third-party dependencies or major model releases that could test capacity.