We've added 'bedrock' as a first-class AI provider, allowing users to run evaluations using models hosted on AWS Bedrock. By leveraging the standardized AWS credential chain (SSO, IAM roles, and env vars), this integration eliminates the need for individual API keys, making it much easier to use in locked-down corporate environments. It supports both native model IDs and inference profile ARNs with robust error handling for common AWS authentication issues.