AssemblyAI Universal 3.5 ProvsZoom Scribe
Accuracy and speed
Left gets fewer words wrong. Lower has the final text ready sooner.
- Universal 3.5 Pro1.93% · 180ms
- Scribe1.97% · 118ms
AssemblyAI Universal 3.5 Pro is ahead on time to first text, and Zoom Scribe on final-text delay. The Pipecat Dataset and The Ocular Dataset are too close to call. AssemblyAI Universal 3.5 Pro has a newer release: AssemblyAI Universal 3.6 Pro vs Zoom Scribe.
Last updated Methodology by Dileep Chagam
Who is better at what
- Pipecat Dataset WER1.93%1.97%
- Ocular Dataset WER4.23%4.88%
- Time to first text489ms1.67s
- Final-text delay180ms118ms
Lower is better on every measure. Too close to call means the likely ranges overlap.
Related comparisons
Both providers, every model: AssemblyAI vs Zoom
Universal 3.5 Pro vs Scribe FAQ
Which is more accurate, AssemblyAI Universal 3.5 Pro or Zoom Scribe?
AssemblyAI Universal 3.5 Pro and Zoom Scribe are too close to call on accuracy. On the 1,000 public Pipecat clips, AssemblyAI Universal 3.5 Pro scores 1.93% and Zoom Scribe 1.97%, with likely ranges of 1.69 to 2.18% and 1.73 to 2.22%. The ranges overlap, so the difference is too close to call. On the eight licensed Ocular recordings, AssemblyAI Universal 3.5 Pro scores 4.23% and Zoom Scribe 4.88%, with likely ranges of 3.57 to 4.68% and 4.41 to 5.29%. The ranges overlap, so the difference is too close to call. Word error rate counts incorrect, missing, and extra words, so lower is better.
AssemblyAI Universal 3.5 Pro and Zoom Scribe are too close to call on accuracy. On the 1,000 public Pipecat clips, AssemblyAI Universal 3.5 Pro scores 1.93% and Zoom Scribe 1.97%, with likely ranges of 1.69 to 2.18% and 1.73 to 2.22%. The ranges overlap, so the difference is too close to call. On the eight licensed Ocular recordings, AssemblyAI Universal 3.5 Pro scores 4.23% and Zoom Scribe 4.88%, with likely ranges of 3.57 to 4.68% and 4.41 to 5.29%. The ranges overlap, so the difference is too close to call. Word error rate counts incorrect, missing, and extra words, so lower is better.
No. Zoom Scribe finishes the transcript 62ms sooner. AssemblyAI Universal 3.5 Pro has the final transcript 180ms after the speaker stops and Zoom Scribe 118ms, at the median. Both are measured on the same 206 streamed turns.
Zoom Scribe finishes the transcript 62ms sooner, and the two are too close to call on real conversations. A voice agent cannot reply until the final transcript arrives, and the Ocular recordings are real conversations.
Yes, both return partial text before the speaker stops. AssemblyAI Universal 3.5 Pro shows first text after 489ms and Zoom Scribe after 1.67s, at the median, so AssemblyAI Universal 3.5 Pro is 1.18s sooner.