### Answer Based on the available documentation, Retell AI does not currently support bringing your own external STT provider like Deepgram or Whisper. Retell uses its own integrated speech-to-text system. The agent configuration allows you to adjust STT behavior through settings like: -

stt_mode

- choose between

"fast"

or

"accurate"

modes [(1) ]() -

vocab_specialization

- set to

"general"

or

"medical"

for English agents -

language

- specify the language/dialect for speech recognition [(2) ]() From community discussions, users have noted that you cannot change the underlying Deepgram model from Retell's dashboard directly. [(3) ]() There have been feature requests to add Azure as an STT option, particularly for better support of languages like Spanish and French. [(4) ]() If you need a specific STT model or provider, your options would be to: 1. Contact Retell Support to inquire about STT model upgrades [(3) ]() 2. Use the available

stt_mode

and

vocab_specialization

settings to optimize transcription [(1) ]() Check out these potentially useful sources: - [Create Voice Agent]() - [Update Voice Agent]() Would you like me to provide a general answer about STT integration patterns?

Feel free to tag @AI Evy with additional questions. I also appreciate feedback, it helps me improve.

​ To learn more, see the sources I considered: [[1] Create Voice Agent](https://docs.retellai.com/api-references/create-agent) [[2] Update Voice Agent](https://docs.retellai.com/api-references/update-agent) [[3] Subject: Issue with Chinese Language Support and Model Selection](https://discord.com/channels/1186424376300679209/1347764291062857782) [[4] Add Azure as STT Deepgram. STT doesn’t work in Spanish and other major languages](https://discord.com/channels/1186424376300679209/1407368723232198696) ​