A

Universal 3.5 Pro

Jul 2026
AUniversal 3.5 Pro
Compare in
on
$0.004per minute
3AA Speech to text
Jul 2026released
en, es, fr +15Languages
YesSpeaker diarization
$0.004 / minPer audio minute
Universal-3.5 ProPrice covers

Ranking?

Full ranking →
1Scribe v23.22OmniASR LLM 7B v23.63OmniASR LLM 3B v24.44OmniASR LLM 1B v24.75Gemini 3.5 Transcribe4.8
···
14Multilingual43.815Universal 3.5 Pro45.2

Strong at

A
Speech & Voice#12 of 51

Benchmarks

in Speech & Voice
Open ASR · average WER5.8#16
Open ASR · AMI Cleaned WER10.6#40
Open ASR · Earnings-22 Cleaned AA Chunked WER6.1#16
Open ASR · GigaSpeech Cleaned WER7.6#14
Open ASR · LibriSpeech Clean WER1.1#14
Open ASR · LibriSpeech Other WER2.1#7
Open ASR · SPGISpeech WER1.8#10
Open ASR · URGENT 2024 WER9.1#3
Open ASR · Voice Arena Monsoon WER3.5#12
Open ASR · VoxPopuli AA Cleaned WER1.9#4
Open ASR · Earnings-22 WER10#18
Open ASR · URGENT 2024 Clean WER5.1#17
Open ASR · French FLEURS WER2.8#3
Open ASR · French MCV WER6.5#16
Open ASR · French MLS WER2.5#4
Open ASR · German FLEURS WER2.2#3
Open ASR · German MCV WER2.7#6
Open ASR · Spanish FLEURS WER2#5
Open ASR · Spanish MCV WER2.7#5
Open ASR · Spanish MLS WER2.8#7
Open ASR · Italian FLEURS WER1#3
Open ASR · Italian MCV WER2.7#9
Open ASR · Italian MLS WER6#16
Open ASR · Portuguese FLEURS WER2.8#4
Open ASR · Portuguese MLS WER4.1#7
Open ASR · Hindi Monsoon WER11.8#10
Open ASR · Dutch FLEURS WER3.4#5
Open ASR · Dutch MCV WER2.7#8
Open ASR · Dutch MLS WER4#3
Open ASR · Armenian FLEURS WER45.2#15
Open ASR · Armenian MCV WER50.4#13
AA Speech to text · Recorded audio word error rate3#14

FAQ

How much does Universal 3.5 Pro cost?›

$0.004 per minute.

Is Universal 3.5 Pro free to use?›

There is no free API; it costs $0.004 per minute.

How good is Universal 3.5 Pro, and what is it best at?›

#12 of 51 in Speech to text. Strongest at: Speech & Voice.

Is Universal 3.5 Pro better than Multilingual?›

On Open ASR · Armenian FLEURS WER, Universal 3.5 Pro scores 45.2 vs 43.8 — lower. It is 600% more expensive.

When was Universal 3.5 Pro released? Is there a newer version?›

Released 2026-07-07. It is the current version in its line.

Is Universal 3.5 Pro open source?›

No, Universal 3.5 Pro is a closed model available through an API. The closest open-weights option here is Stt Hy Fastconformer Hybrid Large Pc.

What is Universal 3.5 Pro?›

Universal 3.5 Pro is a closed speech & voice model from AssemblyAI, released Jul 2026.

What are the best alternatives to Universal 3.5 Pro?›

Multilingual (cheaper), Scribe v2 (better), Stt Hy Fastconformer Hybrid Large Pc (open weights).