Retell AI

Retell AI is a platform for building and managing voice AI agents designed for realistic, human-like conversations. It helps teams create voice assistants that can handle complex tasks, run at scale, and be tailored to specific call flows.

How it works

• Create a voice agent in the web interface
• Configure conversation scenarios and prompts
• Test the agent and deploy it to phone lines or a website
• Monitor performance and outcomes in the dashboard

Key features

• Built-in Turn-Taking model with ~800 ms response latency
• Supports interruptions and real-time conversational feedback
• Multilingual voice agents
• Integrations with major telephony systems
• Scalable calling for high volumes
• HIPAA-aligned approach to data protection

Pros and cons

• Pros: fast scenario setup, scalable call handling, realistic voices, security compliance focus
• Cons: learning curve for new users, possible limits with some external integrations, some features still in progress