Retell AI vs Cartesia pricing
Voice agents: Retell AI from $0.055 vs Cartesia from $0.06.
Last updated · prices checked daily
Voice agent platforms: Retell AI vs Cartesia
Retell AI has the lower listed Voice agents price: $0.055 per minute (Retell Voice Infra (platform only)) vs $0.06 for Cartesia (Managed voice agents (call duration)), about 8% less.
Not apples to apples: Retell AI's rate is platform fee only while Cartesia's is bundled models. Use the calculator below to add speech, LLM and telephony costs.
| Vendor | Product / tier | $/min |
|---|---|---|
| Retell AI Visit site ↗ | Retell Voice Infra (platform only) Platform fee only Infrastructure component only; LLM, TTS and telephony are added per minute. | $0.055 |
| Cartesia Visit site ↗ | Managed voice agents (call duration) Bundled models Telephony extra ($0.014/min on Cartesia numbers per page); LLM free for UI agents for a limited time. | $0.06 |
| Retell AI Visit site ↗ | Retell voice agent, all-in range Pay as you go All-in Advertised all-in range depending on LLM, voice and telephony choices. | $0.07–$0.31 |
What it costs at volume (lowest listed rate)
| Minutes | Retell AI | Cartesia |
|---|---|---|
| 1,000 min | $55.00 | $60.00 |
| 10,000 min | $550.00 | $600.00 |
| 100,000 min | $5,500.00 | $6,000.00 |
Cost-per-call calculator
Estimate what one call really costs. Prices come from today's table; LLM and telephony presets are per-minute rates published by Retell and Vapi. Everything is editable.
Cartesia's pricing page puts one minute of speech at 750–800 characters; Rime says about 1,000. The talk share is your own guess at how much of each call the agent is speaking.
FAQ
Is Retell AI or Cartesia cheaper for voice agent platforms?
Retell AI has the lower listed Voice agents price: $0.055 per minute (Retell Voice Infra (platform only)) vs $0.06 for Cartesia (Managed voice agents (call duration)), about 8% less. Prices checked Oct 28, 2026.
How often are these prices updated?
Every day. A script reads each vendor's public pricing page, extracts the listed rates and keeps a dated copy, so price changes show up in the history.