GPT-Live-1

Google DeepMind released Gemini 3.8 Live and a reasoning-enhanced Extended Thinking variant for voice agents, pricing audio input at $0.005/minute versus OpenAI's $0.05/minute for GPT-Live-1. The Extended Thinking model tops the Artificial Analysis Speech-to-Speech Leaderboard with 82.6 percent.

OpenAI has released GPT-Live-1 as a developer API, a speech model capable of full-duplex conversation—listening and talking simultaneously. It already powers ChatGPT's voice mode and costs $0.05 per minute, with benchmark scores showing sharp improvements over GPT-Realtime-2.1.

OpenAI has released GPT-Live-1, a full-duplex voice model that can speak and listen simultaneously, replacing ChatGPT's previous turn-based voice system. The model automatically routes queries to GPT-5.5 for reasoning tasks and includes real-time translation capabilities.