Vapi is the Voice AI platform for developers.

Vapi AI

<@390538447560900618>
Hello! When you connect your Twilio account to VAPI, you're using Twilio's infrastructure for telephony services, such as making and receiving phone calls. The "Programmable Voice" charge is from Twilio for these telephony services. VAPI charges separately for the use of its Voice API, which includes Text-to-Speech (TTS) and other features. 

So, the charges you're seeing for "Programmable Voice" are for the phone calls made through Twilio, while the charges from VAPI are for the API services you're using on top of that. Each service provider bills for their respective services to ensure the infrastructure and API features you're utilizing are maintained and available for your use.

If you have any more questions or need further clarification, feel free to ask!

You can continue this conversation by mentioning me in the message.

I am not sure I understand this one! What is the programmable voice at twilio? I am not using it if I am using your TTS no?

Hey <@390538447560900618> twilio is used for doing the phone calls which is called out by them as programmable voice and TTS is trancriber. You pay for the TTS, STT, LLM, Telephony all 4 four services, and for the approximate costs you can check it out in the dashboard.

Do let me know if you have further questions.