Retell AI Voice Agents
Platform for building, deploying and monitoring AI voice agents that handle phone calls: call transfer to humans, appointment booking, IVR navigation, outbound call campaigns and post-call analysis.
Find alternatives to Retell AI Voice Agents
What it does
- Voice agent
- Customer support
Features 8
- Drag-and-drop conversation canvasDesign each conversation step with functions, integrations, transfers, DTMF, SMS and custom logic.
- Simulation and regression testingManually test changes, simulate thousands of scenarios and turn production calls into regression tests.
- Call QAQuality-checks up to 100% of AI calls to measure performance and surface patterns.
- Custom analyticsCustom analytics from any post-call metric, with A/B test comparison across agent versions.
- Outbound campaignsUpload an audience, schedule campaigns and control pacing, retries and voicemail handling.
- IVR navigationDetects IVRs, understands menu options, presses digits and enters extensions during a live call.
- Live monitoring and takeoverMonitor AI calls live, listen in and take over the conversation instantly.
- APIs & SDKsAPIs and SDKs giving developers programmatic control across the platform.
How it compares
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Bland
Bland AI is a quick way to prototype a voice bot.
Official documentation · 13 Oct 2026 -
Vapi
Feed Vapi a well-specced architecture and a solid engineering team, and you can build almost any voice workflow from scratch.
Official documentation · 13 Oct 2026 -
Synthflow Voice AI Agents
Retell vs Synthflow: Compare Pricing, Features
Official documentation · 13 Oct 2026 -
Decagon
Retell vs Decagon - AI Phone Agent Comparison
Official documentation · 13 Oct 2026 -
Sierra
Why use Sierra to respond to conversations when Retell can resolve the entire call, end-to-end?
Official documentation · 13 Oct 2026
Sources
- Pricing
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Pricing page: "True pay as you go. Only pay for the minutes you use." "$0.07-$0.31 / min for AI Voice Agents"; Enterprise Plan with "Custom Pricing" via Contact sales.
- Description
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Company disclosure · 7 Oct 2026
Homepage: "AI Voice Agent Platform for Phone Call Automation"; "Build, deploy, and manage next-generation AI voice agents that sound human, execute tasks, and scale effortlessly."
- What it does
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Company disclosure · 7 Oct 2026
Homepage names Call Transfer, Book Appointments, Navigate IVR, outbound campaigns and AI customer-service and receptionist use cases.
- Sold within
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Retell publishes its own per-minute rate ("$0.07-$0.31 / min for AI Voice Agents") and a sign-up for a pay-as-you-go plan; sold on its own, no parent offering.
- Name
- URL
- Deployment
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Company disclosure · 7 Oct 2026
Hosted service; homepage also lists an "Enterprise On-prem" option: "Deploy Retell within your own infrastructure".
- Interfaces
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Company disclosure · 7 Oct 2026
Homepage: "Go beyond the dashboard with APIs and SDKs that give developers" control.
- Modalities
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Official documentation · 12 Oct 2026
Page: 'can listen, speak, and hold natural phone conversations like a human'.
Also from Retell AI
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Retell Chat Agents Agent platform
Text counterpart of Retell's voice agents: businesses build AI chat agents with the same prompts, functions and knowledge bases, or convert a voice agent in one click, and deploy them in a website widget, over two-way SMS or through a chat API, billed per AI message.
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Retell AI Conductor Agent platform
AI copilot on every page of the Retell dashboard: told in plain language what to change, it proposes edits to a voice or chat agent for approval, generates simulation tests from real calls, filters call and chat history to explain failures, and builds analytics charts.
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