OpenAI's New Realtime Voice Models Can Think, Translate, and Transcribe — Here's What Developers Need to Know

OpenAI just shipped three realtime voice models through their API. One reasons at GPT-5 level during live calls. One translates 70+ languages in real time. One does streaming transcription. All available today. Let me break down what matters for developers. The Three Models GPT-Realtime-2 handles voice conversations with GPT-5-level reasoning. The key difference from previous voice models: it can call tools mid-conversation without going silent. It narrates what it's doing while executing — Open