For AI agents: a documentation index is available at the root level at /llms.txt and /llms-full.txt. Append /llms.txt to any URL for a page-level index, or .md for the markdown version of any page.
WebsiteStatusSupportDashboard
DocumentationAPI ReferenceMCPSDKsCLI (new)What's New?
DocumentationAPI ReferenceMCPSDKsCLI (new)What's New?
  • Get started
    • Introduction
    • Phone calls
    • Web calls
    • Vapi Guides
    • Composer
    • CLI quickstart
  • Assistants
    • Quickstart
    • Tools
    • Custom keywords
    • Custom voices
    • Custom transcriber
    • Custom TTS
  • Observability
    • Boards
  • Squads
    • Quickstart
    • Overview
    • Handoff tool
    • Passing data between assistants
  • Best practices
    • Prompting guide
    • Debugging voice agents
    • Enterprise environments (DEV/UAT/PROD)
    • IVR navigation
  • Phone numbers
    • Free Vapi number
    • Inbound SMS
    • Phone Number Hooks
  • Calls
    • Call end reasons
    • Troubleshoot call errors
  • Outbound Campaigns
    • Quickstart
    • Overview
  • Chat
    • Quickstart
    • Streaming
    • Non-streaming
    • OpenAI compatibility
    • Session management
    • Variable substitution
    • SMS chat
    • Web widget
    • Webhooks
  • Workflows
    • Quickstart
    • Overview
      • FAQ
          • Deepgram
          • Google
          • Gladia
          • Speechmatics
          • Talkscriber
          • AssemblyAI
      • Support
LogoLogo
WebsiteStatusSupportDashboard
On this page
  • Universal-Streaming
  • How to use AssemblyAI as transcriber
  • Supported Languages
ResourcesIntegrationsTranscribers (Speech-to-text)

AssemblyAI

Was this page helpful?
Edit this page
Previous

AWS S3

Store recordings of chat conversations in AWS S3
Next
Built with

Universal-Streaming

Universal-Streaming is AssemblyAI’s purpose-built speech-to-text model that delivers ultra-fast, immutable transcripts in ~300ms with intelligent endpointing and superior accuracy for voice agents. It eliminates common pain points like misheard account numbers, awkward pauses, and premature cutoffs, enabling more natural and successful voice interactions.

How to use AssemblyAI as transcriber

This guide details how to setup AssemblyAI as a transcriber for your assistant.

1

Head to the “Assistants” tab in your Vapi dashboard.

Click on your assistant and then the “Transcriber” tab.

Select “assembly-ai” on the Provider dropdown.

Supported Languages

Universal-Streaming currently supports English only.