True-Cost & Margin Calculator
The advertised platform rate is never your real cost. Add up the whole per-minute stack — platform, LLM, STT/TTS, telephony — and see the margin you're actually running at any client price.
The per-minute stack
$0.07
$0.04
$0.03
$0.015
3,000
$499
True cost / min
$0.155
all-in, not the sticker rate
Monthly cost
$465
Margin / month
$34
Margin %
7%
Your real cost is $0.155/min — roughly 121% over the platform's headline rate once the BYOK stack is added. At $499/mo you're running a 7% margin. Thin — raise the price or cap included minutes.