AWS Lambda Web Functions enables standard HTTP servers without adapters; S3 available on Vercel Marketplace

• AWS Lambda Web Functions is a new form factor that runs standard HTTP web applications (Express, Hono, Fastify, Next.js) without rewriting them into event handlers or using adapters.
• Each execution environment handles up to 128 concurrent requests, and billing is based on actual CPU time used rather than wall-clock time, optimizing costs for server-side rendering and inference endpoints.
• Amazon S3 is now available on the Vercel Marketplace and v0, allowing users to provision S3 general purpose buckets, S3 Tables, and S3 Vectors directly from the Vercel dashboard using short-lived OIDC tokens for authentication.
• Reflection Beam, an open-weight agentic coding model with 501 billion total parameters and 1 million token context length, is now deployable from Amazon SageMaker JumpStart and optimized for AWS Trainium3.

AWS Lambda Web Functions Details

• Available in five Regions, running Node.js 24 on Arm64 with VPC connectivity.
• Supports multi-region deployment via --regions flag for latency-based routing behind a single global URL.
• Canary rollouts are supported by splitting traffic across revisions by weight.
• Amazon CloudFront can use a Web Function endpoint as an origin with origin access control.

Other Launches and Updates

• Amazon EC2 T8i instances are now available in the São Paulo Region, offering up to 30 percent better price performance and 70 percent higher compute performance than T3.
• AWS Lambda Durable Execution SDK for Go is generally available, supporting multi-step workflows that can pause for up to a year.
• Amazon CloudWatch introduces log routing and chained log parsers for conditional log group distribution and sequential parsing.