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AssemblyAI·Feb 3, 2026·v1.0·paid

Universal-3 Pro

Universal-3 Pro is AssemblyAI's latest speech language model optimized for Voice AI applications. It offers state-of-the-art accuracy across six languages and introduces promptable capabilities, allowing users to guide transcription results with plain language instructions.

AudioTTS
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overview

Universal-3 Pro is AssemblyAI's latest speech language model optimized for Voice AI applications. It offers state-of-the-art accuracy across six languages and introduces promptable capabilities, allowing users to guide transcription results with plain language instructions.

key features
  • 01Supports six languages: English, Spanish, Portuguese, French, German, and Italian
  • 02Keyterms prompting with up to 1,000 words for domain-specific accuracy
  • 03Built-in code switching for seamless language transitions
  • 04Multichannel support for complex audio scenarios
  • 05Real-time transcription optimized for Voice AI applications