Degraded performance on Claude Opus 4.8 Anthropic reported degraded performance on Claude Opus 4.8, with users able to subscribe to email and SMS updates for incident notifications. Subscribe to updates for Degraded performance on Claude Opus 4.8 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’