Deepgram Nova-3 vs Speechmatics Linden
Accuracy and speed
Left gets fewer words wrong. Lower has the final text ready sooner.
- Nova-33.46% · 103ms
- Linden2.46% · 147ms
Deepgram Nova-3 is ahead on time to first text and final-text delay, and Speechmatics Linden on both datasets together and the Pipecat Dataset. The Ocular Dataset is too close to call.
Last updated Methodology by Dileep Chagam
Who is better at what
- Overall WER3.78%2.97%
- Pipecat Dataset WER3.46%2.46%
- Ocular Dataset WER4.39%3.93%
- Time to first text1.06s1.19s
- Final-text delay103ms147ms
Lower is better on every measure. Too close to call means the likely ranges overlap. For costs, see our breakdown of Deepgram pricing.
Nova-3 vs Linden FAQ
Which is more accurate, Deepgram Nova-3 or Speechmatics Linden?
Speechmatics Linden is more accurate on both datasets. On the 1,000 public Pipecat clips, Deepgram Nova-3 scores 3.78% and Speechmatics Linden 2.97%, so Speechmatics Linden makes fewer errors by 0.82 points. On the eight licensed Ocular recordings, Deepgram Nova-3 scores 3.46% and Speechmatics Linden 2.46%, so Speechmatics Linden makes fewer errors by 1.01 points. Word error rate counts incorrect, missing, and extra words, so lower is better.
Speechmatics Linden is more accurate on both datasets. On the 1,000 public Pipecat clips, Deepgram Nova-3 scores 3.78% and Speechmatics Linden 2.97%, so Speechmatics Linden makes fewer errors by 0.82 points. On the eight licensed Ocular recordings, Deepgram Nova-3 scores 3.46% and Speechmatics Linden 2.46%, so Speechmatics Linden makes fewer errors by 1.01 points. Word error rate counts incorrect, missing, and extra words, so lower is better.
Yes. Deepgram Nova-3 finishes the transcript 126ms sooner. Deepgram Nova-3 has the final transcript 1.06s after the speaker stops and Speechmatics Linden 1.19s, at the median. Both are measured on the same 206 streamed turns.
It is a trade-off. Speechmatics Linden makes fewer errors on real conversations, while Deepgram Nova-3 finishes the transcript 126ms sooner. 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 4.39% and Speechmatics Linden after 3.93%, at the median.
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