Google Chirp 2vsSpeechmatics Linden
Accuracy and speed
Left gets fewer words wrong. Lower has the final text ready sooner.
- Chirp 22.59% · 568ms
- Linden2.46% · 147ms
Speechmatics Linden is ahead of Google Chirp 2 on time to first text and final-text delay. The Pipecat Dataset and The Ocular Dataset are too close to call. Google Chirp 2 has a newer release: Google Chirp 3 vs Speechmatics Linden.
Last updated Methodology by Dileep Chagam
Who is better at what
- Pipecat Dataset WER2.59%2.46%
- Ocular Dataset WER3.80%3.93%
- Time to first text4.50s1.19s
- Final-text delay568ms147ms
Lower is better on every measure. Too close to call means the likely ranges overlap.
Chirp 2 vs Linden FAQ
Which is more accurate, Google Chirp 2 or Speechmatics Linden?
Google Chirp 2 and Speechmatics Linden are too close to call on accuracy. On the 1,000 public Pipecat clips, Google Chirp 2 scores 2.59% and Speechmatics Linden 2.46%, with likely ranges of 2.31 to 2.89% and 2.19 to 2.73%. The ranges overlap, so the difference is too close to call. On the eight licensed Ocular recordings, Google Chirp 2 scores 3.80% and Speechmatics Linden 3.93%, with likely ranges of 2.93 to 4.60% 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.
Google Chirp 2 and Speechmatics Linden are too close to call on accuracy. On the 1,000 public Pipecat clips, Google Chirp 2 scores 2.59% and Speechmatics Linden 2.46%, with likely ranges of 2.31 to 2.89% and 2.19 to 2.73%. The ranges overlap, so the difference is too close to call. On the eight licensed Ocular recordings, Google Chirp 2 scores 3.80% and Speechmatics Linden 3.93%, with likely ranges of 2.93 to 4.60% 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.
No. Speechmatics Linden finishes the transcript 421ms sooner. Google Chirp 2 has the final transcript 568ms after the speaker stops and Speechmatics Linden 147ms, at the median. Both are measured on the same 206 streamed turns.
Speechmatics Linden finishes the transcript 421ms 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. Google Chirp 2 shows first text after 4.50s and Speechmatics Linden after 1.19s, at the median, so Speechmatics Linden is 3.31s sooner.