Realtime API

Low-latency real-time voice interaction API

InternationalSelectionProgrammingVoice InteractionLow Latency

The Realtime API, launched by OpenAI, is a low-latency voice interaction API that enables developers to create fast voice-to-voice experiences within their applications. This API supports natural voice-to-voice conversation and can handle interruptions, similar to the advanced voice mode of ChatGPT. It operates through a WebSocket connection and supports function calls, allowing voice assistants to respond to user requests, trigger actions, or introduce new contexts. With this API, developers no longer need to combine multiple models to construct voice experiences; instead, they can achieve natural conversational interactions through a single API call.

Support for natural voice-to-voice conversations
Handle interruptions
similar to ChatGPT's advanced voice mode
Support function calls via WebSocket connections
Support audio input and output
Enable multimodal experiences
with plans to add visual and video modalities in the future
Support for GPT-4o model
with future support for GPT-4o mini
Provide audio safety infrastructure to reduce potential harm

The target audience primarily consists of developers
especially those looking to integrate voice interaction capabilities into their applications. The Realtime API is ideal for scenarios requiring fast and natural conversational experiences
such as language learning applications
health and fitness guidance apps
and customer support solutions.

The Healthify app uses the Realtime API for natural conversations with the AI coach Ria
The Speak language learning app utilizes the Realtime API for role-playing exercises
Customer support agents use the Realtime API to provide personalized assistance

Start building in the Playground or refer to the documentation and client references
Integrate audio components provided by LiveKit and Agora
Integrate the Realtime API with Twilio's voice API using Twilio
Establish a WebSocket connection to exchange messages with the GPT-4o model
Invoke functions to respond to user requests and trigger actions

Visit

Realtime API Visit Over Time

Monthly Visits

551146617

Bounce Rate

57.47%

Page per Visit

2.2

Visit Duration

00:01:46

Realtime API Visit Trend

Realtime API Visit Geography

Realtime API Traffic Sources

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