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AWS Lambda response streaming now supports 200 MB response payloads

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AWS Lambda response streaming has increased its maximum response payload size from 20 MB to 200 MB, providing enhanced capabilities for developers.

  • Supports 200 MB response payloads directly within Lambda
  • Improves performance for latency-sensitive workloads
  • Reduces time to first byte (TTFB) for applications
  • Ideal for real-time AI chat, web, and mobile applications
  • Supports Node.js managed runtimes and custom runtimes
  • Available across all AWS Regions supporting response streaming

This upgrade eliminates the previous need for payload compression or using S3 as an intermediary, enabling more efficient processing of large datasets, image-heavy PDFs, and other substantial files.

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