Retell AI

Retell AI is a platform for building, testing, deploying, and monitoring production-grade AI voice agents that handle real-time phone and voice interactions. It is designed to replace or augment traditional call centers with programmable, context-aware agents that can understand natural speech, respond with human-like voices, and integrate directly into business workflows. The primary purpose of Retell AI is to help organizations automate high-volume voice conversations while maintaining reliability, control, and observability over every interaction.

The platform provides tools to design conversational flows, connect to existing LLMs or custom models, and integrate with CRMs, ticketing systems, and internal APIs for data-driven responses. It supports low-latency streaming, barge-in, and interruption handling, enabling more natural, back-and-forth conversations. Developers can use SDKs and APIs to embed voice agents into telephony systems, configure routing, and manage phone numbers. Robust monitoring, logging, call transcripts, and analytics allow teams to track performance, refine prompts, and continuously improve agent behavior in production environments.