Realtime API reference

Reference for the Azure OpenAI Realtime API events, with notes on Azure-specific deviations from the OpenAI specification.

The Azure OpenAI Realtime API follows the OpenAI Realtime API specification. For the full API reference, see the OpenAI Realtime API reference.

Azure deviation: The accepted values for the model field in input_audio_transcription settings differ from the OpenAI reference. Azure OpenAI requires the name of the existing model deployment for the field, like my-gpt-4o-transcribe-deployment. See details about Model deployment via Foundry Portal or

with code.