Universal-3 Pro
AssemblyAI’s flagship speech-to-text model.
Universal-3 Pro is AssemblyAI’s top speech-to-text model, available through its API alongside speech-understanding features.
- Provider
- AssemblyAI
- Type
- Speech-to-text
- Released
- Feb 4, 2026
- Price
- ≈$3.50 per 1,000 minutes
- Input
- audio
- Output
- text
- Open weights
- No
Best for
- Extraction & classification
- Enterprise
Strengths
- ≈3.1% WER
- Mature developer API