Best AI Voice Agents in 2026
Updated
32ranked
1free plans on this page
$0.06/molowest paid tier
10 Oct 2026last checked
Input list AI Voice Agents 7 channels on this page · 27 of 56 spec lines stated by the makers
Ch Tool Free planPaid fromInbound callsOutbound callsHuman handoffSupported languagesConcurrent callsCustom phone numbers Spec sheet Score
26 Uniphore Self-Service Agent Free planPaid fromInbound callsOutbound callsHuman handoffSupported languagesConcurrent callsCustom phone numbers 0/8spec lines stated 6.3
27 Deepgram Voice Agent API Free planNoPaid fromInbound callsYesOutbound callsYesHuman handoffYesSupported languagesConcurrent calls45 callsCustom phone numbersYes 6/8spec lines stated 6.2
28 PolyAI Free planNoPaid fromInbound callsOutbound callsHuman handoffYesSupported languagesConcurrent callsCustom phone numbers 2/8spec lines stated 6.2
29 Replicant Free planNoPaid fromInbound callsOutbound callsHuman handoffYesSupported languagesConcurrent callsCustom phone numbers 2/8spec lines stated 6.2
30 Slang AI Free planNoPaid fromInbound callsYesOutbound callsHuman handoffYesSupported languagesConcurrent callsCustom phone numbersYes 4/8spec lines stated 6.2
31 Deepgram Aura Free planNoPaid fromInbound callsYesOutbound callsYesHuman handoffYesSupported languagesConcurrent calls45 callsCustom phone numbersYes 6/8spec lines stated 6.1
32 Retell AI Free planNoPaid fromInbound callsYesOutbound callsYesHuman handoffYesSupported languages55 languagesConcurrent calls20 callsCustom phone numbersYes 7/8spec lines stated 6.0
Compare all 7 in a table
| # | Tool | Score | Free plan | Free plan | Paid from | Inbound calls | Outbound calls |
|---|---|---|---|---|---|---|---|
| 26 | Uniphore Self-Service Agent | 6.3 | |||||
| 27 | Deepgram Voice Agent API | 6.2 | No | No | Yes | Yes | |
| 28 | PolyAI | 6.2 | No | ||||
| 29 | Replicant | 6.2 | No | ||||
| 30 | Slang AI | 6.2 | No | No | Yes | ||
| 31 | Deepgram Aura | 6.1 | No | No | Yes | Yes | |
| 32 | Retell AI | 6.0 | Free plan | No | Yes | Yes |