Retell AI

Retell AI is a platform for building, deploying and managing AI voice agents that handle phone calls. Teams design conversation flows on a drag and drop canvas, adding functions, integrations, call transfers, DTMF, SMS and custom logic, then deploy the agent for inbound calls, outbound campaigns, web widgets or SMS. Typical roles include receptionist, appointment setter, lead qualification, customer service and survey agents. The platform is aimed at businesses that want to automate call handling without handing every change to the vendor. It includes simulation testing that can run thousands of scenarios, production calls that can be turned into regression tests, call analytics and transcripts, webhooks and API access, and AI quality assurance that can review up to every call. Enterprise customers can add role based access control, custom SSO, custom MSA and DPA terms, and dedicated support. Pricing is pay as you go with no annual contract. New accounts receive $10 in free credits and full platform access. Voice agents cost $0.07 to $0.31 per minute depending on the language model and voice chosen, and chat agents start at $0.002 per message. The pay as you go plan includes 20 concurrent calls. The pricing page itemizes components such as $0.055 per minute for Retell voice infrastructure. Enterprise pricing is custom, with a higher cap on concurrent calls.