@Jay
Hello!
Certainly, I'd be happy to clarify the costs for you. VAPI charges a platform fee of $0.05 per minute, which is prorated per second. However, you also need to consider the transport costs, which are the telephony costs incurred for inbound and outbound phone calls to and from a phone number. These transport costs are typically billed per minute by your telephony provider.
If you're seeing charges that go up to $0.20 per minute, it's likely that the additional cost is coming from these telephony transport costs. The total cost per minute would be the sum of both the VAPI platform fee and the transport costs from your telephony provider.
If you need a more detailed breakdown or if there's a specific call you're concerned about, please let me know, and I can assist you further!