AI Voice Agent Pricing Explained: Per-Minute, Subscription and Usage Stacks
Most AI voice agents bill per minute of talk time. The total is a stack: a platform fee, the language model, speech-to-text, text-to-speech and telephony. Some vendors bundle the stack into one rate; others sell annual contracts.
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An AI voice agent bill has up to five parts. Each part has its own price. Some vendors show you every part. Other vendors bundle them into one rate per minute.
Prices change often. We checked every number below on 2026-10-29. Check the vendor page before you sign.