AWS Expands Enterprise AI Offerings with Anthropic Claude 4 and OpenAI Open-Weight Models on Bedrock and SageMaker

Summary

AWS announced back-to-back deals on August 5 and 6, 2025, with Anthropic and OpenAI to expand its AI model portfolio. Anthropic's latest Claude 4 models are now available on Amazon Bedrock, while OpenAI's new open-weight models are accessible via both Bedrock and SageMaker AI. The moves position AWS as a comprehensive multi-model platform offering proprietary-cloud, open-weight, and hybrid models from the leading AI providers. The dual announcements underscore AWS's strategy to be the default e