Inworld STT-1vsSpeechmatics Linden
Accuracy and speed
Left gets fewer words wrong. Lower has the final text ready sooner.
- STT-12.72% · 41ms
- Linden2.46% · 147ms
Inworld STT-1 is ahead of Speechmatics Linden on time to first text and final-text delay. The Pipecat Dataset and The Ocular Dataset are too close to call.
Last updated Methodology by Dileep Chagam
Who is better at what
- Pipecat Dataset WER2.72%2.46%
- Ocular Dataset WER10.60%3.93%
- Time to first text1.06s1.19s
- Final-text delay41ms147ms
Lower is better on every measure. Too close to call means the likely ranges overlap.
STT-1 vs Linden FAQ
Which is more accurate, Inworld STT-1 or Speechmatics Linden?
Inworld STT-1 and Speechmatics Linden are too close to call on accuracy. On the 1,000 public Pipecat clips, Inworld STT-1 scores 2.72% and Speechmatics Linden 2.46%, with likely ranges of 1.67 to 4.68% and 2.19 to 2.73%. The ranges overlap, so the difference is too close to call. On the eight licensed Ocular recordings, Inworld STT-1 scores 10.60% and Speechmatics Linden 3.93%, with likely ranges of 3.85 to 22.76% and 2.94 to 5.19%. The ranges overlap, so the difference is too close to call. Word error rate counts incorrect, missing, and extra words, so lower is better.
Inworld STT-1 and Speechmatics Linden are too close to call on accuracy. On the 1,000 public Pipecat clips, Inworld STT-1 scores 2.72% and Speechmatics Linden 2.46%, with likely ranges of 1.67 to 4.68% and 2.19 to 2.73%. The ranges overlap, so the difference is too close to call. On the eight licensed Ocular recordings, Inworld STT-1 scores 10.60% and Speechmatics Linden 3.93%, with likely ranges of 3.85 to 22.76% and 2.94 to 5.19%. 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. Inworld STT-1 finishes the transcript 106ms sooner. Inworld STT-1 has the final transcript 41ms after the speaker stops and Speechmatics Linden 147ms, at the median. Both are measured on the same 206 streamed turns.
Inworld STT-1 finishes the transcript 106ms 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. Inworld STT-1 shows first text after 1.06s and Speechmatics Linden after 1.19s, at the median, so Inworld STT-1 is 127ms sooner.