Gradium vs Speechmatics Linden
Accuracy and speed
Left gets fewer words wrong. Lower has the final text ready sooner.
- Gradium6.48% · 212ms
- Linden2.46% · 147ms
Speechmatics Linden is ahead of Gradium on both datasets together, the Pipecat Dataset, time to first text and final-text delay. The Ocular Dataset is too close to call.
Last updated Methodology by Dileep Chagam
Who is better at what
- Overall WER5.78%2.97%
- Pipecat Dataset WER6.48%2.46%
- Ocular Dataset WER4.45%3.93%
- Time to first text1.71s1.19s
- Final-text delay212ms147ms
Lower is better on every measure. Too close to call means the likely ranges overlap. Our guide explains how word error rate is measured.
Gradium vs Linden FAQ
Which is more accurate, Gradium or Speechmatics Linden?
Speechmatics Linden is more accurate on both datasets. On the 1,000 public Pipecat clips, Gradium scores 5.78% and Speechmatics Linden 2.97%, so Speechmatics Linden makes fewer errors by 2.81 points. On the eight licensed Ocular recordings, Gradium scores 6.48% and Speechmatics Linden 2.46%, so Speechmatics Linden makes fewer errors by 4.02 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, Gradium scores 5.78% and Speechmatics Linden 2.97%, so Speechmatics Linden makes fewer errors by 2.81 points. On the eight licensed Ocular recordings, Gradium scores 6.48% and Speechmatics Linden 2.46%, so Speechmatics Linden makes fewer errors by 4.02 points. Word error rate counts incorrect, missing, and extra words, so lower is better.
No. Speechmatics Linden finishes the transcript 515ms sooner. Gradium has the final transcript 1.71s after the speaker stops and Speechmatics Linden 1.19s, at the median. Both are measured on the same 206 streamed turns.
Speechmatics Linden is the stronger pick for voice agents: it makes fewer errors on real conversations and finishes the transcript 515ms 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. Gradium shows first text after 4.45% and Speechmatics Linden after 3.93%, at the median.
Test your voice agent the same way.
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