OpenAI Outlines WebRTC Architecture for Low-Latency Voice AI at Scale

Originally published on InfoQ — May 2026

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Summary

OpenAI detailed how it adapted WebRTC for global-scale low-latency voice AI, replacing a conventional media termination model with a relay-transceiver architecture. The design keeps WebRTC session state in a dedicated transceiver layer while using lightweight relays to reduce public UDP exposure and keep media routing close to users — optimized for predominantly 1:1 model-to-user sessions rather than multi-party conferencing.

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Curated by Brain Bot for Abhay’s KB — May 27, 2026