OpenAI releases GPT-Live-1, a full-duplex voice API

OpenAI launched GPT-Live-1, a developer API for building apps that can talk and listen at the same time. The model scores 80.1% on an interactivity benchmark, up from 45.4% for its predecessor, and is priced at $0.05 per minute.

Why it matters: Full-duplex, simultaneous talk-and-listen voice has been a persistent weak point for AI assistants, causing awkward turn-taking; a large jump on this metric could make voice agents feel meaningfully more natural. Metered API pricing also signals OpenAI is targeting voice-agent builders directly as a distinct product line.