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Universal-3.5 Pro
AssemblyAI's Universal speech-to-text models for pre-recorded audio, offered through its transcription API (Universal-3.5 Pro).
- AssemblyAI
- Closed
- Released 23 Jun 2026
Where it ranks
- ATranscriptionModels · Cloud · 3% on Artificial Analysis Speech to Text: AA-WER v2 (non-streaming)
Facts
- Vendor
- AssemblyAI
- Family
- Universal
- Released
- 23 Jun 2026
- Weights
- Closed: API and apps only
- License
- proprietary
- API price
- $0.0035 per minute of audio (Official list price $0.21 per audio hour for Universal-3.5 Pro pre-recorded, divided by 60 (= $3.5 per 1,000 minutes on Artificial Analysis).)
- Last verified
- 19 Oct 2026
Price from assemblyai.com, 19 Oct 2026.
Benchmark results
| Benchmark | Result | Entry on the leaderboard | As of | Source |
|---|---|---|---|---|
| Artificial Analysis Speech to Text: AA-WER v2 (non-streaming) | 3% | Universal-3.5 ProAA-WER v2 (non-streaming), provider AssemblyAI; embedded value 0.0299 converted to percent and rounded; page shows no last-updated date. | 18 Oct 2026 | artificialanalysis.ai |
| Hugging Face Open ASR Leaderboard (English, short-form average WER) | 5.4% | assemblyai/universal-3-5-proAverage WER over the board's default datasets (English short-form, version 17-10-2026); rank 8; read from the Space's initial table data. | 17 Oct 2026 | huggingface.co |
Where you can use it
No tracked tool lists this model yet.
Earlier versions
- Universal-3 Pro · 4 Feb 2026
- Universal · 30 Oct 2024