Retell AI is a platform for building, testing, deploying and monitoring AI chat agents and voice agents that answer inbound calls and place outbound ones, with telephony, prompts, tools and analytics built in. Teams build agents in a no-code dashboard or through its API, SDKs and MCP server, choose language models such as GPT, Claude or Gemini or connect their own, use managed US or Canadian phone numbers or their own carrier over SIP, and run graded test cases before launch. For restaurants, an agent answers every call to take full orders with modifiers and send them to the point of sale as a ticket, book reservations against live availability, text a secure payment link or charge a stored card, and answer menu questions from a knowledge base that syncs with the menu and website, with card numbers and personal details redacted from transcripts. Retell states HIPAA and GDPR compliance and SOC 2 Type 1 and Type 2 certification, and it is priced pay as you go per minute of voice or per chat message, with voice billed by component (language model, voice infrastructure, text-to-speech and telephony), free starting credits and custom enterprise pricing.
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