Vercel Functions WebSocket support reaches general availability

·2026.10.20 09:00

Key point

The feature handles 15 million connections daily for AI chat and streaming apps, with CPU billed only for active processing time.

WebSocket support in Vercel Functions is now generally available, following a public beta that launched in late June.
Vercel CDN has served 300 million WebSocket connections since the beta launch and currently handles 15 million per day.
Customers use the feature for AI chat, streaming, and realtime multiplayer apps, including AI Gateway's realtime models.
Pricing follows standard Function invocation limits, with Active CPU pricing billing only for time spent processing messages.

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