Retell AI
Retell AI is a voice-first conversational AI platform enabling human-quality, low-latency phone calls at scale.
Free + paidWebAPITelephonyLLM-basedMultimodal
Visit websiteretellai.com
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Retell AI is a voice-first conversational AI platform enabling human-quality, low-latency phone calls at scale. It features proprietary Voice AI orchestration with approximately 600ms latency and ultra-realistic voices trained on performance data. The platform includes robust testing capabilities like simulation testing, continuous QA for failure analysis, and performance analytics dashboards. Designed to replace outsourced call centers, it serves businesses needing scalable voice agents. Pricing starts with a free tier offering credits and concurrency, and a pay-as-you-go model from $0.07 per minute.
Key features
- ~600ms low-latency voice orchestration
- Simulation testing and continuous QA
- SIP trunking and branded call ID
- Performance analytics dashboard
- Proprietary turn-taking model
Pricing
Use cases
- Medical appointment scheduling
- EV support calls
- Customer support automation
Who it is for
Businesses requiring scalable voice agents
Integrations
TwilioZapierVapiREST APIWebhooks
Tags
API
How we verified this
Company, pricing, and feature details come from the primary sources below and our latest verification pass. When sources disagree, the official source and the most recent check win.
Last verified 09/10/2026Verified sources: 1
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