# Retell AI

> Build voice AI agents for phone calls

Retell AI is a platform for building production-ready voice AI agents for business phone calls. Features advanced turn-taking, interruption handling, emotion detection, and CRM integrations. Create AI agents that handle complex, multi-turn conversations naturally at enterprise scale.

## Quick facts

- Categories: AI Agents, Developer Tools, Voice
- Pricing: Freemium (free plan + paid tiers)
- Free plan: Yes
- Official site: https://retell.ai
- Last checked: 2026-10-26

## Key features

- AI voice agent platform
- Low-latency phone AI
- Custom voice persona creation
- Inbound and outbound calls
- CRM integration
- Call analytics

## Use cases

- Building AI phone agents
- Customer service voice automation
- Appointment scheduling by phone
- Outbound voice campaign automation

## Links

- Nextool.ai page: https://nextool.ai/tools/retell-ai/
- Alternatives: https://nextool.ai/alternatives/retell-ai/

Source: Nextool.ai (https://nextool.ai/tools/retell-ai/). Pricing and features change; confirm on the provider's site before relying on them.