In 2026, AWS announced Lambda Web Functions, a serverless compute model allowing developers to write code that directly handles HTTP requests, analogous to traditional HTTP servers, using common frameworks like Express or Hono without extra adapters. This facilitates workloads such as AI inference, SSR web apps, streaming APIs, and microservices with reduced cold starts through concurrent request handling in single warm execution environments.
Billing for Lambda Web Functions is based on active CPU time and memory use, excluding idle waiting times, optimizing cost-efficiency. Regional availability covers key AWS locations, and configuration is supported via various AWS tools. Existing Lambda functions were renamed to Lambda Event Functions without code impact to clarify usage modes.
Source & further reading
AWS Lambda announces Lambda Web Functions ↗Source published 2026-10-12. This report was prepared with AI assistance from the linked primary-source material. Claims and limitations should be checked against the original announcement or research.