AWS Weekly Roundup: Anthropic·Meta Partnerships, AWS Lambda S3 Files, Amazon Bedrock AgentCore CLI, and More (April 27, 2026)

Anthropic trains its most advanced foundation model on AWS Trainium and Graviton, and has started offering Claude Cowork on Amazon Bedrock. Claude Platform on AWS is also coming soon, which is expected to make it easier to build, deploy, and scale Claude-based applications within AWS. Meta has also signed a deployment agreement involving tens of millions of Graviton cores for agentic AI workloads.

Among the features announced last week, AWS Lambda S3 Files stands out. It lets Lambda functions mount Amazon S3 buckets as a file system, allowing standard file operations without downloading the data. In addition, Amazon EKS Hybrid Nodes gateway automates connectivity between cloud VPCs and on-premises Pod networks, and Aurora Serverless delivers up to 30% performance improvement over the previous version along with smarter scaling.

Amazon Bedrock AgentCore has added a managed harness (preview), the AgentCore CLI, and skills for coding assistants. You can run it immediately by specifying just the model, system prompt, and tools, and export it to Strands-based code if needed. The CLI can be deployed with AWS CDK today, with Terraform support coming soon, and is currently available in 14 AWS Regions at no additional cost.

Other news includes granular cost attribution for Bedrock, integration between AWS DevOps Agent and the Salesforce MCP Server, free microcredentials, and optimized generative AI inference recommendations for SageMaker AI. Details were also shared about What's Next with AWS on April 28, along with the AWS Summits and AWS Community Days schedule continuing from May.