I noticed that we can make calls even without providing keys for voice providers like eleven labs. Is vapi adding additional charges for that? And which one is cheaper.

@fishy VAPI provides a seamless experience for voice developers, and you can indeed begin using VAPI without a credit card thanks to the $10 in free credits granted to every new account. This allows you to test voice workflows and get started right away. Regarding the cost comparison between using VAPI and voice providers like Eleven Labs, VAPI charges are straightforward: phone numbers are billed at $2 per month. As for the voice services, the costs would depend on the specific rates of the voice providers you choose to use in conjunction with VAPI. If you're handling a large volume of calls and are interested in more detailed pricing, especially to see if VAPI is cheaper for your use case compared to other providers, I recommend checking out our Enterprise plans for more comprehensive information. Our Enterprise plans are tailored to high-volume users and may offer cost advantages based on your specific needs. If you need further assistance or have more detailed questions about pricing and charges, please ask support for more info on this. We have hands-on 24/7 support and a shared Slack channel with our team to help you with any inquiries.

> Is vapi adding additional charges for that? And which one is cheaper. Yes you have to additional charges if you use Vapi key, and almost all costs the same you to look for the option according to your requirements.