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AWS Serverless Application Model (SAM) is an open-source framework that helps developers build serverless applications on Amazon Web Services. It simplifies the process of defining serverless resources and automates deployment through a straightforward syntax. SAM supports Lambda functions, API Gateway APIs, DynamoDB tables, and other services, making it an essential tool for developers looking to leverage the power of serverless architecture in their applications.

One of the standout features of AWS SAM is its local development and testing capabilities, allowing developers to invoke AWS Lambda functions locally and test them in a simulated AWS environment. Additionally, SAM CLI offers commands for building, testing, and deploying serverless applications, enhancing productivity and streamlining workflows. Pricing is based on the resources consumed when deployed, with opportunities for cost savings using serverless architecture. Teams choose AWS SAM for its seamless integration with other AWS services, robust community support, and comprehensive documentation, making it a go-to option for serverless application development.