Deepgram Nova-3vsSmallest Pulse

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Accuracy and speed

Left gets fewer words wrong. Lower has the final text ready sooner.

Accurate and fast0ms200ms400ms600ms800ms0%2%4%6%8%Words wrong on clean audio (Pipecat WER)
  • Nova-33.46% · 103ms
  • Pulse3.66% · 201ms

Deepgram Nova-3 is ahead of Smallest Pulse on final-text delay. The two tie on time to first text. The Pipecat Dataset and The Ocular Dataset are too close to call.

Last updated Methodology by Dileep Chagam

Who is better at what

Nova-3Pulse
  • Pipecat Dataset WER3.46%3.66%
  • Ocular Dataset WER4.39%3.46%
  • Time to first text1.06s1.06s
  • Final-text delay103ms201ms

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

Nova-3 vs Pulse FAQ

  • Deepgram Nova-3 and Smallest Pulse are too close to call on accuracy. On the 1,000 public Pipecat clips, Deepgram Nova-3 scores 3.46% and Smallest Pulse 3.66%, with likely ranges of 3.16 to 3.78% and 3.34 to 3.99%. The ranges overlap, so the difference is too close to call. On the eight licensed Ocular recordings, Deepgram Nova-3 scores 4.39% and Smallest Pulse 3.46%, with likely ranges of 3.42 to 5.25% and 2.66 to 4.22%. The ranges overlap, so the difference is too close to call. Word error rate counts incorrect, missing, and extra words, so lower is better.

  • Yes. Deepgram Nova-3 finishes the transcript 98ms sooner. Deepgram Nova-3 has the final transcript 103ms after the speaker stops and Smallest Pulse 201ms, at the median. Both are measured on the same 206 streamed turns.

  • Deepgram Nova-3 finishes the transcript 98ms 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. Deepgram Nova-3 shows first text after 1.06s and Smallest Pulse after 1.06s, at the median.