OpenAI · OpenAI
WebRTC is an open standard for sending low-latency audio, video, and data between browsers, mobile apps, and servers
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That standardization matters for AI products.
Key facts
- A VIP is a virtual IP address fronting the relay fleet; combined with the port, it gives the client a single stable destination, such as `203.0.113.10:3478`, even though many relay instances sit
- Most sessions are 1:1—one user talking to one model, or one application talking to one real-time agent—with latency sensitivity on every turn
- The team evaluated several ways to get there, including TURN (Traversal Using Relays around NAT), where an edge relay terminates client allocations and forwards traffic on their behalf. 2
- It keeps audio codecs, RTCP messages, data channels, recording, and per-stream policy in one place. 1
Summary
By Yi Zhang and William McDonald, Members of Technical Staff. Voice AI only feels natural if conversation moves at the speed of speech. At OpenAI’s scale, that translates into three concrete requirements:. Fast connection setup so a user can start speaking as soon as a session begins. Low and stable media round-trip time, with low jitter and packet loss, so turn-taking feels crisp.