tools
Retell AI
Retell AI builds voice, chat, and SMS agents that answer questions, complete tasks, route calls, and hand off to people.
In inglese
Retell AI lets teams build, test, deploy, and monitor AI agents for phone calls, web chat, and SMS. Agents can use knowledge bases, navigate IVR systems, book appointments, run outbound campaigns, connect to CRMs, and transfer callers with context.
It offers a no-code dashboard and an API for custom workflows. Pricing is usage-based rather than seat-based: voice agents cost per minute, chat agents per message, and add-ons such as knowledge bases, phone numbers, concurrency, QA, and PII removal can cost extra.
Features
- Build visual conversation flows with functions, integrations, transfers, DTMF, SMS, and custom logic
- Run simulation tests and convert production calls into regression tests
- Deploy agents for inbound calls, outbound campaigns, web, chat, and SMS
- Use knowledge bases to answer questions from synced business content
- Navigate IVR menus and enter digits or extensions during calls
- Monitor live calls and take over when human intervention is needed
- Analyze calls with transcripts, post-call metrics, custom analytics, and AI QA
- Access webhooks and API controls for custom communication workflows
Use cases
- Answer customer-service questions across voice, chat, and SMS
- Book appointments and manage scheduling calls
- Qualify leads through inbound or outbound conversations
- Route callers and perform warm transfers to human agents
- Dispatch field-service requests and manage after-hours calls
- Run surveys, debt-collection calls, and outbound campaigns
Pros
Cons
Latest updates
- Retell Workflows, Brex top 25, and more
Retell Workflows has launched; transcription defaults to call IDs; GPT-5.6 and GPT Realtime 2.1 are live in the agent builder.
- Conductor, higher free-tier token limits, and more
Conductor is live; every change gets simulated before it ships; free LLM token allowance raised to 4,000; documents parse more accurately.
- Live Call Monitoring, Custom Dashboards, Built-in CRM, Colloquial Model, Expressive Mode, and more
Built-in CRM syncs with Salesforce and HubSpot; Live Call Monitoring gives a real-time view of active conversations.
- Agent Versioning 2.0, Granular Multilingual, Custom Voicemail, Voice Orb, and more
Create multiple drafts, track who changed what, select languages, and customize how each agent detects voicemail.
- ChatGPT app, Dynamic voice speed, A/B testing, and more
Build an agent with ChatGPT, match voice speed to callers, and split call traffic by percentage across multiple agents.
Capabilities
- Choice of models — “Choose your options LLM GPT 5.5 GPT 5.4 GPT 5.2” source
- Self-hosted — “Deploy Retell within your own infrastructure to meet strict security and data residency requirements.” source
- API — “Build and orchestrate custom communication experiences through a flexible API.” source
- Builds agents and workflows — “Build, update, test, and deploy AI voice agents without relying on Retell for every change.” source
- Search over your data — “AI uses existing knowledge” source
- Traces and evaluates — “Every call is transcribed and available for review, so you evaluate 100 percent of interactions instead of a manual sample.” source
Get it
Security
- SOC 2 Type II — “SOC 2 Type 2 Report” source
- SOC 2 — “SOC 2 Type 1 Report” source
- ISO 27001 — “ISO 27001:2022 Certificate Of Registration” source
- GDPR — “GDPR commitments” source
- HIPAA — “To obtain a signed Business Associate Agreement (BAA) or Data Processing Agreement (DPA), visit our Legal agreements portal:” source
Pricing
- Prices checked
- 2026-09-25
Pay as you go
- $0.07-$0.31 / min
- $0.002+ / msg
- Full platform access
- Pre-built Agent Templates
- Call Analytics and Transcripts
- Simulation Testing
- Webhooks and API Access
- 20 Free Concurrent Calls
Enterprise Plan
Price on request
- Dedicated Implementation Support (add-on)
- Custom MSA/DPA terms
- Role-based Access Control
- Dedicated Stable Server (add-on)
- Custom SSO
- High Cap on Concurrent Calls