Elevated errors on Claude Sonnet 4.6 Anthropic reported elevated error rates on its Claude Sonnet 4.6 model, prompting the company to issue a service incident notification. Users can subscribe to email or SMS updates to receive alerts when the incident is created or resolved. The disruption affects access to the AI model, though the company has not yet specified the cause or expected resolution time. Subscribe to updates for Elevated errors on Claude Sonnet 4.6 via email and/or text message. You'll receive email notifications when incidents are updated, and text message notifications whenever Claude creates or resolves an incident. To receive SMS updates, please verify your number. To proceed with just email click ‘Subscribe’