Retellai vs Vapi
Retellai uniquely has 9 features · Vapi uniquely has 8 features.
| Retellai | Vapi | |
|---|---|---|
| Company | ||
| Founded | 2023 | 2023 |
| HQ | San Francisco, USA | San Francisco USA |
| AI model | GPT-4.1, GPT-5.5, GPT-5.4, Claude 5 Sonnet, Claude 4.x, Gemini 3.x | Multiple (OpenAI, Anthropic, and others via API-first platform) |
| User base | — | 750K+ developers |
| Platforms | Web, API, SIP Trunking, Voice, Chat, SMS | Web, API (cloud-hosted infrastructure) |
| Languages | — | Multiple — supports multiple languages via underlying LLM/TTS providers |
| Pricing | ||
| Pricing model | Usage-based | Usage-based |
| Free plan | No | Yes |
| Free trial | Yes | Yes — 60+ minutes included on sign-up |
| Starting price | $0.07/min | Usage-based (60+ min included) |
| Enterprise | Custom Pricing | Annual contract, contact for pricing |
| All plans | Pay-as-you-go$0.07–$0.31/min usageEnterpriseCustom usage | Build$0.05/min usageScaleCustom |
| Positioning | ||
| Best for | Organizations building AI Voice and Chat Agents | Developers building voice AI applications |
| Differentiator | Pay-as-you-go with $10 free credits, multilingual agent support, high concurrency, and enterprise-grade compliance | API-first voice agent platform with sub-500ms latency, supporting 1B+ calls and 2.5M+ agents launched, with enterprise-grade compliance (SOC2, HIPAA, PCI) and bring-your-own-API-key model cost pass-through. |
| Competitors | Vapi, Bland AI, ElevenLabs Conversational AI, Synthflow, Voiceflow | Retell AI, Bland AI, Twilio, ElevenLabs Conversational AI, Deepgram |
| Features | ||
| 20 Free Concurrent Calls | ✓ | — |
| Call Analytics and Transcripts | ✓ | — |
| Concurrent Calls | — | ✓ |
| Custom Sso | ✓ | — |
| Custom Voices | — | ✓ |
| Data Residency | — | ✓ |
| Hipaa Compliance | — | ✓ |
| Pre Built Agent Templates | ✓ | — |
| Sso & Rbac | — | ✓ |
| Simulation Testing | ✓ | — |
| Webhooks and API Access | ✓ | — |
| Zero Data Retention | — | ✓ |
| AI Chatbot | ✓ | ✓ |
| API Access | ✓ | ✓ |
| CRM Integration | ✓ | ✓ |
| Custom Training | ✓ | ✓ |
| Email Automation | ✕ | ✕ |
| Human Handover | ✓ | ✓ |
| Knowledge Base | ✓ | ✓ |
| Live Chat | ✓ | ✓ |
| Multilingual | — | ✓ |
| Sla Management | — | ✓ |
| Ticket Management | ✕ | ✕ |
| Integrations | ||
| API Access | ✓ | ✓ |
| Hubspot | ✓ | — |
| Key Integrations | HubSpot, Salesforce, Twilio, Telnyx, Vonage, Go High Level, Zapier, n8n, Make, Cal.com, Avaya, Genesys, Five9, Amazon Connect | Bring-your-own STT providers (e.g. Deepgram), LLM providers (e.g. OpenAI, Anthropic), TTS providers (e.g. ElevenLabs), telephony providers, custom API integrations via API-first design |
| Salesforce | ✓ | — |
| Shopify | ✕ | — |
| Zapier | ✓ | — |