Best Conversational AI Platforms in 2026
Updated
41 conversational AI platforms ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
41ranked
0free plans on this page
$0.01/molowest paid tier
8 Oct 2026last checked
Conversational AI Platforms, one module each. A lit port is something its maker publishes; 0 of the 16 on this page have a public API.
- 26 Vapi API not on recordOSS not on recordFREE yesDOCS 5.6$29/mo
- 27 Capacity API not on recordOSS not on recordFREE not on recordDOCS 5.2
- 28 Oracle Digital Assistant API not on recordOSS not on recordFREE not on recordDOCS 5.2
- 29 Nugget API not on recordOSS not on recordFREE not on recordDOCS 5.1
- 30 ServiceNow Virtual Agent API not on recordOSS not on recordFREE not on recordDOCS 5.1
- 31 Voiceflow API not on recordOSS not on recordFREE not on recordDOCS 5.1
- 32 OpenDialog API not on recordOSS not on recordFREE not on recordDOCS 5.0
- 33 Aisera AI Agent Studio API not on recordOSS not on recordFREE not on recordDOCS 4.9
- 34 Retell AI API not on recordOSS not on recordFREE not on recordDOCS 4.9$0.07/mo
- 35 boost.ai API not on recordOSS not on recordFREE not on recordDOCS 4.8
- 36 Druid AI Agent Builder API not on recordOSS not on recordFREE not on recordDOCS 4.8
- 37 Radioso API not on recordOSS not on recordFREE not on recordDOCS 4.8
- 38 PolyAI API not on recordOSS not on recordFREE not on recordDOCS 4.7
- 39 OpenAI Frontier API not on recordOSS not on recordFREE not on recordDOCS 4.6
- 40 Parloa API not on recordOSS not on recordFREE not on recordDOCS 4.6
- 41 Pipecat API not on recordOSS not on recordFREE not on recordDOCS 4.6$0.01/mo
Compare all 16 in a table
| # | Platform | Score | Free plan | From | Free plan | Paid from | Voice channel | Chat channels |
|---|---|---|---|---|---|---|---|---|
| 26 | Vapi | 5.6 | No | $29/mo | No | 29 /mo | — | — |
| 27 | Capacity | 5.2 | No | — | No | — | — | — |
| 28 | Oracle Digital Assistant | 5.2 | No | — | No | — | — | — |
| 29 | Nugget | 5.1 | No | — | — | — | Yes | chat |
| 30 | ServiceNow Virtual Agent | 5.1 | No | — | — | — | Yes | Web portals, ServiceNow mobile apps, Slack, Microsoft Teams, and other collaboration tools |
| 31 | Voiceflow | 5.1 | No | — | — | — | — | — |
| 32 | OpenDialog | 5.0 | No | — | — | — | — | Web chat |
| 33 | Aisera AI Agent Studio | 4.9 | No | — | — | — | — | — |
| 34 | Retell AI | 4.9 | No | $0.07/mo | No | — | — | — |
| 35 | boost.ai | 4.8 | No | — | No | — | — | — |
| 36 | Druid AI Agent Builder | 4.8 | No | — | No | — | — | — |
| 37 | Radioso | 4.8 | No | — | — | — | — | — |
| 38 | PolyAI | 4.7 | No | — | No | — | — | — |
| 39 | OpenAI Frontier | 4.6 | No | — | No | — | — | — |
| 40 | Parloa | 4.6 | No | — | — | — | — | — |
| 41 | Pipecat | 4.6 | No | $0.01/mo | — | — | — | — |