Ed-En
01/13/2026, 10:08 PMAI Evy
01/13/2026, 10:08 PMAI Evy
01/13/2026, 10:08 PMgemini-2.5-flash
- gemini-2.5-flash-lite
- gemini-3.0-flash
For speech-to-speech (S2S) models, only OpenAI realtime models are listed as available options:
- gpt-4o-realtime
- gpt-4o-mini-realtime
- gpt-realtime
- gpt-realtime-mini
I don't have information in the sources about "Gemini Live" models (Google's native audio/multimodal models) being supported as S2S options on Retell AI. The Gemini models currently available are text-based LLMs, not native audio models.
If you're looking for native audio capabilities similar to what Gemini Live offers, the OpenAI realtime models listed above are the current S2S options. [(1) ]()AI Evy
01/13/2026, 10:08 PMAI Evy
01/13/2026, 10:08 PM