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Best no-code AI voice agent builders (2026)
18 vendors that offer a no-code or low-code builder, ranked on published data only. Nobody pays for position and we have not tested these products; latency and concurrency figures are the vendors' own claims. Checked Oct 26, 2026.
5 of 18 publish a per-minute rate, from $0.02 to $0.07. Top of the list: Famulor, Retell AI, Floatbot, Cartesia Managed Agents, Tabbly and 13 more.
| # | Vendor | Starts at | Per-min | Build | Telephony | LLM choice | Latency (claimed) | Concurrency | HIPAA |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Famulor Voice agent platform · site | Free | — | No-code / low-code | Included | Yes | — | Scales to thousands of parallel calls | BAA available |
| 2 | Retell AI Voice agent platform · site | Free | $0.07 | No-code and API | Included | Yes | ~600ms | 20 free concurrent calls; no cap on Enterprise | BAA available |
| 3 | Floatbot Voice agent platform · site | $99/mo | — | No-code / low-code | Bring your own | Yes | — | Maximum concurrent calls set per plan | Claims HIPAA |
| 4 | Cartesia Managed Agents Voice agent platform · site | Free | $0.06 | No-code and API | Included | — | — | Concurrency pool per service; high/custom limits on Scale and Enterprise | Claims HIPAA |
| 5 | Tabbly Voice agent platform · site | Free | $0.05 | No-code / low-code | Included | — | — | Unlimited on published plans | Not stated |
| 6 | Amazon Connect Contact-center platform (CCaaS) · site | $0.038/min | $0.038 | No-code / low-code | — | — | — | — | Not stated |
| 7 | Millis AI Voice agent platform · site | $0.02/min | $0.02 | No-code and API | Included | Yes | 600ms (title); 500ms also cited | — | Not stated |
| 8 | Vonage AI Studio Voice agent platform · site | Free | — | No-code / low-code | Included | — | — | — | Not stated |
| 9 | ElevenLabs Agents Voice agent platform · site | Not published | — | No-code and API | Bring your own | Yes | Ultra-low latency (no figure published) | — | BAA available |
| 10 | Synthflow Voice agent platform · site | Quote | — | No-code / low-code | Included | — | Sub-100 ms telephony latency | Custom concurrency planning (enterprise) | Not stated |
| 11 | Google CX Agent Studio Enterprise voice AI · site | Not published | — | No-code / low-code | — | — | — | — | Not stated |
| 12 | Voiceflow Voice agent platform · site | Not published | — | No-code / low-code | — | Yes | — | — | Claims HIPAA |
| 13 | Cresta Enterprise voice AI · site | Quote | — | No-code / low-code | — | — | — | — | Not stated |
| 14 | Kore.ai Enterprise voice AI · site | Quote | — | No-code and API | — | — | Sub-second responses | — | Claims HIPAA |
| 15 | NiCE Cognigy Enterprise voice AI · site | Quote | — | No-code / low-code | — | Yes | — | — | Not stated |
| 16 | Five9 Contact-center platform (CCaaS) · site | Quote | — | No-code / low-code | — | — | — | — | Not stated |
| 17 | Parloa Enterprise voice AI · site | Not published | — | No-code / low-code | — | — | — | — | Not stated |
| 18 | Replicant Enterprise voice AI · site | Quote | — | No-code / low-code | Included | — | — | — | Not stated |
The AI Receptionist Price Watch
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Questions
Which no-code AI voice agent builders publish a per-minute price?
5 of 18: Millis AI ($0.02/min), Amazon Connect ($0.038/min), Tabbly ($0.05/min), Cartesia Managed Agents ($0.06/min), Retell AI ($0.07/min). Most add telephony, LLM or voice costs on top; see each listing.
Which ones only quote on request?
6 of 18: Synthflow, Cresta, Kore.ai, NiCE Cognigy, Five9, Replicant.
Which have a free plan, trial or credits?
7 of 18: Famulor, Retell AI, Floatbot, Cartesia Managed Agents, Tabbly, Vonage AI Studio, Google CX Agent Studio.
Which are no-code and which are developer platforms?
No-code or low-code builders: Famulor, Retell AI, Floatbot, Cartesia Managed Agents, Tabbly, Amazon Connect, Millis AI, Vonage AI Studio and 10 more. API/SDK-first: Retell AI, Cartesia Managed Agents, Millis AI, ElevenLabs Agents, Kore.ai. 0 don't make it clear on the pages we read.
Do they include phone numbers and telephony?
Famulor, Retell AI, Cartesia Managed Agents, Tabbly, Millis AI, Vonage AI Studio, Synthflow, Replicant provide numbers or telephony themselves. Famulor, Retell AI, Floatbot, Cartesia Managed Agents, ElevenLabs Agents, Synthflow let you bring your own carrier or SIP trunk.
Can I choose the LLM?
Famulor, Retell AI, Floatbot, Millis AI, ElevenLabs Agents, Voiceflow, NiCE Cognigy say you can choose or bring your own model.
What latency do they claim?
Vendor claims, not our measurements: Retell AI: ~600ms; Millis AI: 600ms (title); 500ms also cited; ElevenLabs Agents: Ultra-low latency (no figure published); Synthflow: Sub-100 ms telephony latency; Kore.ai: Sub-second responses.
Which sign a HIPAA BAA?
Famulor, Retell AI, ElevenLabs Agents say they sign a BAA.
Which integrate with existing contact centers?
Famulor (Zendesk, Freshdesk, ServiceNow, Intercom); Vonage AI Studio (Salesforce, ServiceNow, Microsoft Dynamics); ElevenLabs Agents (Genesys, Salesforce, Zendesk, Cisco); Synthflow (Cisco, Avaya, Genesys, RingCentral); NiCE Cognigy (NICE CXone, Genesys, Avaya, Amazon Connect).
How did you choose these 18?
Every vendor we verified that offer a no-code or low-code builder, from its own site. Order uses published data only: published price first, then how many facts the vendor publishes. Nobody pays for placement, and we have not tested these products. Checked Oct 26, 2026.