not really.
Vapi supports Deepgram Flux, but the configuration is set upfront. The real-time “Configure” message from Flux (for updating settings mid-stream without reconnecting) isn’t exposed through Vapi since it abstracts the streaming layer.
So if you need that level of live control, you’d have to work directly with Deepgram’s WebSocket instead of relying fully on Vapi.
@wraithunder
s
Shaunak
04/21/2026, 8:59 AM
This feature is not currently supported. Vapi's Deepgram Flux implementation sets all stream parameters (keyterms, language hints, EOT thresholds, etc.) at connection time only - there's no ability to send a mid-stream Configure message to update settings dynamically without reconnecting.
Shaunak
04/21/2026, 8:59 AM
Hi,
Thanks for the detailed question and the reference link!
a
Ak_Unitzero
04/21/2026, 10:30 PM
No, Vapi doesn't support Deepgram Flux's mid-stream Configure message. Vapi manages the Deepgram WebSocket internally — you can't send control messages to it directly.
Workaround: Use a Custom Transcriber to handle the Deepgram connection yourself, giving you full control to send Configure messages mid-stream.
Or submit it as a feature request on the Vapi community forum.
w
wraithunder
04/22/2026, 4:28 AM
ah ok thanks for the answer, I'll look into custom transcriber then 👍