Universal-3 Pro is the first production-quality speech model that adapts its behavior based on the instructions you provide. Every capability in Universal-3-Pro: audio tagging, disfluency capture, speaker labeling, works through prompting. Describe your audio in plain language and the model adjusts its transcription accordingly.
assemblyai.universal-3-pro
Use this ID when making API calls to reference this model
assemblyai
ASR
premium
February 3, 2026
$0.21000/hour
$0.00006/second
10h 0m
5.00 GB
Supported capabilities and functionalities
Input/output formats and technical details