Elevated errors on Sonnet 5 and Haiku 4.5 Anthropic reported elevated error rates on its Claude models Sonnet 5 and Haiku 4.5, with users able to subscribe to incident updates via email or SMS. Subscribe to updates for Elevated errors on Sonnet 5 and Haiku 4.5 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’