Voice AI agents tools
Phone and voice assistants. 6 tools we track, checked .
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Short answer page: What's the best voice ai agents tool?
Ranked by fit for solo businesses: tools we profile in depth first, then those used in our research notes, then the rest. Affiliate status never changes the order.
- 1
ElevenLabs
Pick this if you want narration for videos, audiobooks and courses in many languages.
AI voice platform: text-to-speech, voice cloning, dubbing, sound effects and voice agents.
Free plan + paid plans · Free plan: Yes · $0 · then $6/mo (first month promo shown: $1) · Difficulty 2/5
- 2
Retell AI
Pick this if you want receptionist and booking phone agents.
Platform for AI phone agents that answer and make calls.
Pay as you go · Free plan: Yes · $0.07–$0.31 per minute (voice agents) · Difficulty 3/5
- 3
Vapi
Pick this if you want developers building custom voice agents.
Developer platform for building voice AI agents.
Pay as you go · Free plan: Yes · By usage · Difficulty 4/5
- 4
Voiceflow
Pick this if you want teams designing conversational agents.
Collaborative platform to design and deploy chat and voice agents.
Free plan + paid plans · Free plan: Yes · Difficulty 3/5
- 5
Synthflow
Pick this if you want agencies building phone agents without code.
No-code builder for AI voice agents.
Paid plans only · Free plan: Trial only · Difficulty 2/5
- 6
Bland AI
Pick this if you want high-volume outbound and inbound calls.
Enterprise platform for AI phone calls.
Pay as you go · Free plan: No
Side-by-side
| Tool | Pricing model | Free plan | Starting price | Difficulty | Output rights | Best for |
|---|---|---|---|---|---|---|
| ElevenLabs | Free plan + paid plans | Yes | $0 · then $6/mo (first month promo shown: $1) | 2/5 | Commercial use on paid plans only | Narration for videos, audiobooks and courses in many languages |
| Retell AI | Pay as you go | Yes | $0.07–$0.31 per minute (voice agents) | 3/5 | Not a content generator | Receptionist and booking phone agents |
| Vapi | Pay as you go | Yes | By usage | 4/5 | Not a content generator | Developers building custom voice agents |
| Voiceflow | Free plan + paid plans | Yes | See official site | 3/5 | – | Teams designing conversational agents |
| Synthflow | Paid plans only | Trial only | See official site | 2/5 | – | Agencies building phone agents without code |
| Bland AI | Pay as you go | No | See official site | – | – | High-volume outbound and inbound calls |
"Starting price" is shown only for tools we profile in depth, where we read the official pricing page on . For the others, check the official site.