Universal-3 Pro by AssemblyAI

Universal-3 Pro is AssemblyAI's next-generation speech model that accepts contextual prompts before processing audio, enabling domain-specific accuracy for medical terminology, proper noun spelling, and speaker role identification without post-processing. It achieves a 94% word accuracy rate across six supported languages with built-in code-switching for multilingual conversations. Developers integrate it via API with usage-based pricing and no minimum commitments. From startups to Fortune 500s, leading organizations are unlocking the power of voice data and launching best-in-class products and experiences. Tell the speech model what matters before it listens. Universal-3 Pro lets developers guide transcription with natural language prompts so accuracy is shaped up front, not corrected downstream. Notable functionality spans natural language prompt-guided transcription, 94% word accuracy rate, and keyterm prompting for proper nouns (up to 1,000 words). Additional tools cover speaker role identification, code-switching across 6 languages, audio tagging and verbatim mode. Universal-3 Pro by AssemblyAI offers a generous free plan alongside paid tiers that unlock additional capabilities. The tool serves users interested in speech to text, transcription, api and related audio music workflows.