Engineering
Free Voice AI Cost Calculator
Your voice AI will cost less than you think. Or more. Find out in 3 minutes.
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Choose your providers
Select STT, TTS, and LLM providers
How it works
Models real-world voice AI pipeline costs by combining speech-to-text, LLM processing, and text-to-speech pricing from 38+ providers. The calculator factors in context window growth during multi-turn conversations, which is the primary hidden cost most teams miss.
Frequently asked questions
A typical 5-minute customer service call costs $0.08–$0.35 depending on provider choices. STT runs $0.01–$0.04/min, LLM processing $0.02–$0.15/call (grows with conversation length), and TTS $0.01–$0.06/min. At scale, the LLM is usually the largest cost.