Corti vs Retell AI
A side-by-side comparison of capabilities, autonomy, integrations, and pricing to help you choose.
Short answer: choose Corti if you want healthcare ai platform and apis for ambient documentation, coding, and live guidance (Copilot, usage); choose Retell AI if you want platform to build, test, deploy, and monitor ai voice agents for calls (Autonomous agent, usage).
| Corti | Retell AI | |
|---|---|---|
| What it is | Healthcare AI platform and APIs for ambient documentation, coding, and live guidance | Platform to build, test, deploy, and monitor AI voice agents for calls |
| Type | platform | platform |
| Autonomy | Copilot | Autonomous agent |
| Pricing | usage | usage · $0.07/min voice engine (model + telephony billed on top); Enterprise from $8,000 |
| Best for | developers, enterprise, mid-market | developers, smb, mid-market, enterprise |
| Deployment | api, saas | saas, api |
| Modalities | voice, text, api | voice, text, api |
| Models | proprietary, model-agnostic | model-agnostic, gpt, claude |
| Protocols | rest-api | rest-api, function-calling |
| Integrations | Electronic Health Records, Telehealth platforms | Twilio, Telnyx, Vonage, ElevenLabs, PlayHT |
| Capabilities | 4 documented | 4 documented |
Corti
- +API-first: drops ambient documentation, coding, and guidance into existing EHRs
- +Real-time guidance during encounters, not just after-the-fact notes
- +Pay-as-you-go developer pricing plus enterprise plans
- -Decision support and documentation, not an autonomous clinician; clinician review required
- -Developer-oriented; less of a finished end-user product than some scribes
Retell AI
- +Provider-flexible: bring your own telephony, voices, and LLM, or use Retell's built-in carrier
- +Structured Conversation Flow Agents (nodes and transitions) give fine control alongside looser prompt-based agents
- +Usage-based pricing with no mandatory base subscription and free credits to start; built-in testing and monitoring
- -Advertised $0.07/min covers only the voice engine; LLM, telephony, and international add to real per-minute cost
- -Building reliable structured flows for complex calls takes meaningful human setup
Which should you choose?
Corti is healthcare ai platform and apis for ambient documentation, coding, and live guidance, best for developers, enterprise, mid-market. Retell AI is platform to build, test, deploy, and monitor ai voice agents for calls, best for developers, smb, mid-market, enterprise. The right choice depends on the autonomy level you want, your existing integrations, and your budget, all compared above.