AI BriefingWebSocket Support Launches in Public Beta
Key point
Vercel Functions now supports WebSocket, enabling real-time bidirectional communication.
Details
Vercel Functions now supports WebSocket connections, entering public beta. This enables real-time bidirectional communication between client and server, making it possible to build interactive AI streaming, chat, and collaboration apps.
WebSocket connections run on Fluid compute, following the same limits and pricing policies as existing Function invocations. In particular, the Active CPU pricing model applies, so you're only billed for the time spent actually processing messages, not for idle time while the connection is kept alive.
You can implement this using the standard Node.js library without any additional setup, and higher-level libraries such as Socket.IO are also supported.
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