OpenAI's GPT-Live-1 API lets developers build apps that talk and listen at the same time

What happened
OpenAI releases GPT-Live-1 as a developer API. The full-duplex speech model scores 80.1 percent in interactivity tests, up from 45.4 percent for its predecessor. At $0.05 per minute, it's not cheap.
Summary assembled by rule from the sources below