Voice AICommercial✦ Free Tier
Retell AI
Low-latency conversational voice AI platform
App Infrastructure
About
Platform for building production voice agents with sub-800ms latency end-to-end. Handles telephony, turn-taking, backchannels, and interruptions natively. Strong on call reliability and HIPAA compliance for healthcare use cases.
Choose Retell AI when…
- •Latency is critical — sub-800ms end-to-end response is required
- •You're building healthcare or compliance-sensitive voice agents (HIPAA)
- •You want native backchannels and human-like turn-taking out of the box
Builder Slot
How does your AI speak and listen?Optional for most stacks
Speech synthesis and recognition APIs — text-to-speech, speech-to-text, and real-time audio intelligence
Dev Tools
Not applicable
App Infra
Optional
Hybrid
Optional
Other tools in this slot:
Stack Genome Detection
AIchitect's Genome scanner detects Retell AI in your project via these signals:
npm packages
retell-sdkpip packages
retell-sdkenv vars
RETELL_API_KEYIntegrates with (2)
ElevenLabsVoice AI
Alternatives to consider (1)
Pricing
✦ Free tier available
Pay-as-you-go$0.07/min
EnterpriseCustom
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