addeba
06/09/2025, 3:14 PMVapi Support Bot
06/09/2025, 3:16 PM1.0 is only supported via the API, not the UI. The UI slider limitation you described is not addressed in the official docs, and currently, the only confirmed way to set speed: 1.0 is through an API update.
Could you confirm which voice provider you are using (e.g., PlayHT), as only some providers support the speed field?
Sources:
- [VAPI Speech Configuration Docs](https://docs.vapi.ai/customization/speech-configuration)
- [VAPI Changelog March 23, 2025](https://docs.vapi.ai/changelog/2025/3/23)Kings_big💫
06/10/2025, 6:42 AMaddeba
06/10/2025, 5:42 PMChiranjeet Mishra
06/12/2025, 3:14 AMChiranjeet Mishra
06/16/2025, 1:10 PMChiranjeet Mishra
06/16/2025, 1:11 PM