Intervo vs Retell AI
Intervo
intervo.ai
Retell AI
retellai.comSide by side
| Figure | Intervo | Retell AI |
|---|---|---|
| Price from | $129/mo | $0.07/mo |
| Free plan | Yes | Yes |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 4 | 4 |
| Spec score · AI Voice Agents | 8.2 (#8) | 8.0 (#13) |
| Integrations | The integrations page lists Calendly, webhooks, Intercom, Google Sheets, Cal, Slack, Zapier, and a custom API, with the custom API marked Coming Soon. | The integrations directory lists Twilio, GoHighLevel, HubSpot, Salesforce, Zapier, Make, n8n, and Google Workspace. |
| Product | Intervo describes itself as a platform for creating custom AI voice and chat agents for business interactions such as customer support, automation, lead generation, and business communication. | Retell describes its platform as a tool to build, deploy, and manage AI voice agents for phone calls. |
| Security | The pricing page describes the self-hosted plan as providing complete data control, while the FAQ claims end-to-end encryption and strict access controls. | The homepage states that Retell is compliant with HIPAA, SOC 2 Type II, GDPR, and ISO 27001. |
Plans
Intervo
- Self-Hosted — Open SourceFree
- Pay as you go — Developer Plan$10, paid once
- Subscription — Business Plan$129 a month
- EnterprisePriced on request
Retell AI
- Pay as you go$0.07 a month
- EnterprisePriced on request
- Pay as you goFree
- Enterprise PlanPriced on request
In their own words
Intervo
Intervo is a platform for creating AI voice and chat agents for business communication, including customer support, lead qualification, reception, onboarding, automation, and internal help. Businesses can give agents context from documents, websites, or knowledge bases. A website widget lets visitors type or speak with an agent, and the documentation describes connecting agents to phone numbers through Twilio for inbound and outbound calls. Intervo says agents can use OpenAI, Claude, or Gemini models and ElevenLabs or Microsoft Azure voice engines. Listed integrations include Calendly, webhooks, Intercom, Google Sheets, Cal, Slack, and Zapier; a custom API is marked as coming soon. It runs on the web, through an API, or as a self-hosted deployment. The free self-hosted plan includes source code under the MIT License and community support. Developer costs $10, paid once, while Business costs $129 a month; the pricing page also shows yearly billing at $99 USD/month and $129 USD/month.
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.