Retell AI vs Vapi
Retell AI
retellai.comVapi
vapi.aiSide by side
| Figure | Retell AI | Vapi |
|---|---|---|
| Price from | $0.07/mo | $29/mo |
| Free plan | Yes | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | — |
| Plans published | 4 | 5 |
| Spec score · AI Voice Agents | 8.0 (#13) | 8.6 (#5) |
| Spec score · Conversational AI Platforms | 7.9 (#22) | 8.5 (#10) |
| Spec score · Voice Ai Tools | 7.9 (#17) | 8.6 (#9) |
| Integrations | The integrations directory lists Twilio, GoHighLevel, HubSpot, Salesforce, Zapier, Make, n8n, and Google Workspace. | Documented prebuilt or standard integrations include Make, n8n, Google Calendar, Google Sheets, Slack and GoHighLevel. |
| Product | Retell describes its platform as a tool to build, deploy, and manage AI voice agents for phone calls. | Vapi describes itself as a platform for builders to build, deploy, and improve voice agents. |
| Usage limits | The pricing page says every account includes 20 concurrent calls and additional capacity costs $8 per concurrent call per month. | The free-start package includes 4 concurrent calls and 14 days of raw data retention. |
Plans
Retell AI
- Pay as you go$0.07 a month
- EnterprisePriced on request
- Pay as you goFree
- Enterprise PlanPriced on request
Vapi
- No Success PackageFree
- Core$29 a month
- Pro$999 a month
- PremierPriced on request
- No Success Package / Usage onlyFree
In their own words
Retell AI
Retell AI is a platform for building, deploying and managing AI agents that handle phone calls. Agents can also work through web and in-app chat, SMS and custom API-based communication. A visual canvas supports call flows with functions, integrations, transfers, DTMF, SMS and custom logic. Teams can simulate scenarios, turn production calls into regression tests and QA calls. Deployment options include inbound calls, outbound campaigns, web and SMS, including a website widget. Call handling includes IVR navigation, live monitoring and transfer or takeover by a person. The integrations directory names Twilio, GoHighLevel, HubSpot, Salesforce, Zapier, Make, n8n and Google Workspace. The homepage lists HIPAA, SOC 2 Type II, GDPR and ISO 27001 compliance, along with SSO, personal information redaction and module-level role permissions. Enterprise on-premise deployment is available within a customer’s infrastructure. Pay as you go is listed at $0.07 a month, with voice agents priced at $0.07-$0.31 per minute, $10 in free credits and 20 concurrent calls included. Enterprise pricing is custom.
Vapi
Vapi is a voice-call platform available on the web and iOS. It supports inbound and outbound calls, human handoff, concurrent calls, and custom phone numbers. The usage-based No Success Package is listed at free and includes $5 in starter credits, one Vapi phone number, four concurrent calls, and full platform access. Core costs $29 a month, billed monthly, and includes five phone numbers, 10 concurrent calls, 30 days of raw data retention, and email support. Pro costs $999 a month, billed monthly, and includes 10 phone numbers, 30 concurrent calls, 180 days of raw data retention, RBAC, ZDR, and a 99% uptime SLA. Premier uses custom pricing; its listed options include custom phone-number counts and custom RBAC, ZDR, and SSO, with dedicated SIP available. The service listing says there is no free plan, although the No Success Package is presented at no cost with starter credits. Plan allowances vary, so the listed overall concurrent-call figure of 10 is not the allowance for every package.