OpenAI Realtime

Low-latency multimodal API for building seamless speech-to-speech agent experiences.

OpenAI Realtime enables developers to bypass fragile text-to-speech pipelines by streaming audio directly through the GPT-4o model. It maintains sub-second response times (typically under 500ms) and preserves emotional inflection that traditional RAG systems lose. By utilizing the WebSocket protocol, the API handles simultaneous audio input and output, allowing for natural interruptions and fluid human-like pacing in voice assistants and customer support bots.

https://platform.openai.com/docs/guides/realtime