Telnyx Voice AI vs Retell AI
Pricing last verified from each vendor's own site.
Verdict
Telnyx lists a $0.05/min voice engine plus LLM tokens and carrier-cost telephony (from $0.0032/min), which it estimates at about $0.06/min. Retell lists $0.07–$0.31/min pay as you go with $10 free credits.
- Consider Telnyx Voice AI if: You run high call volume and want carrier-level telephony pricing.
- Consider Retell AI if: You want a no-code agent builder with simpler all-in per-minute pricing.
Factual summary
- Both are listed under Voice AI & Dialers.
- Directly comparable starting prices are not available for both: Telnyx Voice AI — Voice engine $0.05/min (orchestration, speech-to-text and text-to-speech); LLM tokens billed separately (about $0.006/min on Telnyx-hosted models per its estimate) and telephony at carrier cost from $0.0032/min; Telnyx estimates a production agent at about $0.06/min; volume rates via sales; free sign-up; Retell AI — Pay as you go, $0.07–$0.31/min; $10 free credits.
- Telnyx Voice AI lists channels Retell AI does not: sms.
This is a factual comparison drawn from vendor sites, not a recommendation. Which fits depends on your channels, volume and budget.
| Telnyx Voice AI | Retell AI | |
|---|---|---|
| Summary | Carrier-owned voice AI agent platform with telephony, speech and LLM inference on one invoice. | AI phone agents priced per minute. |
| Starting price | See vendor | See vendor |
| Pricing details | Voice engine $0.05/min (orchestration, speech-to-text and text-to-speech); LLM tokens billed separately (about $0.006/min on Telnyx-hosted models per its estimate) and telephony at carrier cost from $0.0032/min; Telnyx estimates a production agent at about $0.06/min; volume rates via sales; free sign-up | Pay as you go, $0.07–$0.31/min; $10 free credits |
| Model | usage | usage |
| Free trial | — | — |
| Free plan | — | — |
| Channels | phone, sms | phone |
| Last verified | 2026-11-01 | 2026-10-28 |
FAQ
What is the difference between Telnyx Voice AI and Retell AI?
Telnyx lists a $0.05/min voice engine plus LLM tokens and carrier-cost telephony (from $0.0032/min), which it estimates at about $0.06/min. Retell lists $0.07–$0.31/min pay as you go with $10 free credits.
Which is cheaper, Telnyx Voice AI or Retell AI?
We can't compare entry prices directly. Telnyx Voice AI: Voice engine $0.05/min (orchestration, speech-to-text and text-to-speech); LLM tokens billed separately (about $0.006/min on Telnyx-hosted models per its estimate) and telephony at carrier cost from $0.0032/min; Telnyx estimates a production agent at about $0.06/min; volume rates via sales; free sign-up. Retell AI: Pay as you go, $0.07–$0.31/min; $10 free credits.
When should I choose Telnyx Voice AI over Retell AI?
Consider Telnyx Voice AI if: You run high call volume and want carrier-level telephony pricing. Consider Retell AI if: You want a no-code agent builder with simpler all-in per-minute pricing.
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