The document compares serverless frameworks ClaudiaJS and Chalice. ClaudiaJS is described as a simple and robust deployment utility for serverless applications on AWS, while Chalice is a Python serverless microframework for AWS. Key differences are that ClaudiaJS supports Node.js and Python runtimes, while Chalice is exclusively for Python. ClaudiaJS enables some unit testing for Lambda functions, while Chalice does not support unit testing. Both aim to simplify deploying and managing serverless applications on AWS.