Voice agent cost-per-minute calculator

Pick a vendor preset to load its published platform rate. Then add your own LLM, text-to-speech, speech-to-text and phone line costs. Presets only fill in the platform rate and monthly fee. They do not include plan minutes, discounts or taxes.

Example defaults: STT $0.0065/min (Deepgram Flux, deepgram.com/pricing); telephony $0.0085/min (Twilio US local inbound, twilio.com voice pricing); TTS $0.015/min (Retell platform voices, retellai.com/pricing). All checked 2026-10-16. The LLM default is a placeholder; replace it with your model's cost. Some presets (e.g. Retell's all-in range or Bland) already bundle models, so set the other fields to 0 when the vendor includes them.