Comparisons · Build your own AI phone agent
Best AI agent to build your own AI phone agent
Create a custom voice agent that makes or answers calls for your business. Here are 5 agents that can do it, with prices we checked on each vendor's own page.
Quick answer
- 5 agents compared, all with verified prices.
- Free plan available: Retell AI, Vapi, Bland AI, ElevenLabs Agents.
- We don't rank them. Pick by price, where it runs and the setup steps on each agent's page.
| Agent | What it does | Price (verified) | Free plan | Works on |
|---|---|---|---|---|
| Retell AI | Build AI phone agents | $0.07-$0.31/min ($10 free credits)checked Oct 14, 2026 | Yes | Phone/API |
| Synthflow | Build AI phone agents | Enterprise contracts from $30,000/yrchecked Oct 14, 2026 | Not confirmed | Phone |
| Vapi | Developer platform for voice agents | Free to start; pay per minute (provider costs listed per minute)checked Oct 14, 2026 | Yes | API |
| Bland AI | AI phone calls at scale | $0.14/min, $0 platform feechecked Oct 14, 2026 | Yes | Phone/API |
| ElevenLabs Agents | Build talking voice agents for phone/web | $0 (Starter $6/mo)checked Oct 14, 2026 | Yes | Web, phone |
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