Cartesia Ink 2 vs Google Chirp 3
Accuracy and speed
Left gets fewer words wrong. Lower has the final text ready sooner.
- Ink 22.39% · 123ms
- Chirp 32.00% · 475ms
Cartesia Ink 2 is ahead of Google Chirp 3 on both datasets together, 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
- Overall WER2.63%2.76%
- Pipecat Dataset WER2.39%2.00%
- Ocular Dataset WER3.09%4.19%
- Time to first text1.51s4.48s
- Final-text delay123ms475ms
Lower is better on every measure. Too close to call means the likely ranges overlap. For its voices, see our notes on Cartesia text to speech.
Ink 2 vs Chirp 3 FAQ
Which is more accurate, Cartesia Ink 2 or Google Chirp 3?
Cartesia Ink 2 is more accurate on the public clips. On the 1,000 public Pipecat clips, Cartesia Ink 2 scores 2.63% and Google Chirp 3 2.76%, so Cartesia Ink 2 makes fewer errors by 0.13 points. On the eight licensed Ocular recordings, Cartesia Ink 2 scores 2.39% and Google Chirp 3 2.00%, with likely ranges of 2.13 to 2.65% and 1.77 to 2.25%. The ranges overlap, so the difference is too close to call. Word error rate counts incorrect, missing, and extra words, so lower is better.
Cartesia Ink 2 is more accurate on the public clips. On the 1,000 public Pipecat clips, Cartesia Ink 2 scores 2.63% and Google Chirp 3 2.76%, so Cartesia Ink 2 makes fewer errors by 0.13 points. On the eight licensed Ocular recordings, Cartesia Ink 2 scores 2.39% and Google Chirp 3 2.00%, with likely ranges of 2.13 to 2.65% and 1.77 to 2.25%. 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. Cartesia Ink 2 finishes the transcript 2.97s sooner. Cartesia Ink 2 has the final transcript 1.51s after the speaker stops and Google Chirp 3 4.48s, at the median. Both are measured on the same 206 streamed turns.
Cartesia Ink 2 finishes the transcript 2.97s 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. Cartesia Ink 2 shows first text after 3.09% and Google Chirp 3 after 4.19%, at the median.
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