What text transcription model is used for GPT Realtime 1.5?

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1

We use GPT Realtime 1.5 for some of our single prompt voice agents. What model generates the text transcript?

2

Hello @cole

user side: ASR, agent side: Realtime

Thank You

3

Hey Mark, I just wanted to clarify, is the ASR coming straight from OpenAI (whisper)?

4

Hey @cole

No; Retell’s own ASR pipeline:

  • English: primarily Deepgram

  • Other languages: Azure Speech or Soniox, depending on the language

Again this is for producing the text transcript.