Get the Duplex Kit

The companion to "GPT-Live-1 Is in the API at 5¢ a Minute, I Interrupted It Mid-Call". Page 1: the two-part architecture and OpenAI’s starter prompt word for word. Page 2: the four-step loop my test harness used (session.start → input audio → delegation.created → thinking.append → commentary.append → session.close) and the four connection paths (WebRTC, WebSockets, SIP, partners). Page 3: my real 41-second receipt, the price and concurrency-tier table, and the twelve new voices. Page 4: the honest page (latency at my end, the stalled session, late transcripts, synthetic caller) and every source as a link. Independent; not affiliated with OpenAI.

By submitting, you'll be subscribed to the Hyperautomation AI Report newsletter — three practical AI emails a week. Unsubscribe anytime.

Free. No spam. Unsubscribe anytime.