Google Chirp 3 vs NVIDIA Nemotron 3.5 Transcribe

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Accuracy and speed

Left gets fewer words wrong. Lower has the final text ready sooner. Nemotron 3.5 Transcribe doesn't support streaming, so it is not shown.

Accurate and fast0ms200ms400ms600ms800ms0%2%4%6%8%Words wrong on clean audio (Pipecat WER)
  • Chirp 32.00% · 475ms
  • Nemotron 3.5 Transcribe1.89%

NVIDIA Nemotron 3.5 Transcribe is ahead of Google Chirp 3 on both datasets together. The Pipecat Dataset and The Ocular Dataset are too close to call.

Last updated Methodology by Dileep Chagam

Who is better at what

Chirp 3Nemotron 3.5 Transcribe
  • Overall WER2.76%2.28%
  • Pipecat Dataset WER2.00%1.89%
  • Ocular Dataset WER4.19%3.03%
  • Time to first text4.48sn/a
  • Final-text delay475msn/a

Lower is better on every measure. Too close to call means the likely ranges overlap.

Chirp 3 vs Nemotron 3.5 Transcribe FAQ

  • NVIDIA Nemotron 3.5 Transcribe is more accurate on the public clips. On the 1,000 public Pipecat clips, Google Chirp 3 scores 2.76% and NVIDIA Nemotron 3.5 Transcribe 2.28%, so NVIDIA Nemotron 3.5 Transcribe makes fewer errors by 0.48 points. On the eight licensed Ocular recordings, Google Chirp 3 scores 2.00% and NVIDIA Nemotron 3.5 Transcribe 1.89%, with likely ranges of 1.77 to 2.25% and 1.63 to 2.17%. The ranges overlap, so the difference is too close to call. Word error rate counts incorrect, missing, and extra words, so lower is better.

  • They cannot be compared on speed. NVIDIA Nemotron 3.5 Transcribe was tested on whole recordings rather than a live stream, so its speed is not measured.

  • The two are too close to call on real conversations. NVIDIA Nemotron 3.5 Transcribe was tested on whole recordings rather than a live stream, so its speed is not measured. A voice agent cannot reply until the final transcript arrives, and the Ocular recordings are real conversations.

  • NVIDIA Nemotron 3.5 Transcribe was tested on whole recordings rather than a live stream, so whether it streams partial text was not measured. Google Chirp 3 returns partial text before the speaker stops.

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