How we moderate a live video-chat app in real time (without going broke on AI calls)

I work on Camdiv , an anonymous one-to-one video chat. You open the page, you get matched with a stranger, you talk. It's the Omegle-style format, and from the outside the hard part looks like the video: WebRTC, NAT traversal, keeping latency down. It isn't. WebRTC is mostly a solved problem. The hard engineering is moderation. You're putting two anonymous strangers on a live camera together, with almost no friction, and you have a few seconds to catch it if one of them does something that gets