Cartesia Ink 2 vs Reson8
Accuracy and speed
Left gets fewer words wrong. Lower has the final text ready sooner.
- Ink 22.39% · 123ms
- Reson82.10% · 235ms
Cartesia Ink 2 is ahead on time to first text and final-text delay, and Reson8 on both datasets together. 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%2.38%
- Pipecat Dataset WER2.39%2.10%
- Ocular Dataset WER3.09%2.93%
- Time to first text1.51s2.40s
- Final-text delay123ms235ms
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 Reson8 FAQ
Which is more accurate, Cartesia Ink 2 or Reson8?
Reson8 is more accurate on the public clips. On the 1,000 public Pipecat clips, Cartesia Ink 2 scores 2.63% and Reson8 2.38%, so Reson8 makes fewer errors by 0.24 points. On the eight licensed Ocular recordings, Cartesia Ink 2 scores 2.39% and Reson8 2.10%, with likely ranges of 2.13 to 2.65% and 1.86 to 2.35%. The ranges overlap, so the difference is too close to call. Word error rate counts incorrect, missing, and extra words, so lower is better.
Reson8 is more accurate on the public clips. On the 1,000 public Pipecat clips, Cartesia Ink 2 scores 2.63% and Reson8 2.38%, so Reson8 makes fewer errors by 0.24 points. On the eight licensed Ocular recordings, Cartesia Ink 2 scores 2.39% and Reson8 2.10%, with likely ranges of 2.13 to 2.65% and 1.86 to 2.35%. 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 889ms sooner. Cartesia Ink 2 has the final transcript 1.51s after the speaker stops and Reson8 2.40s, at the median. Both are measured on the same 206 streamed turns.
Cartesia Ink 2 finishes the transcript 889ms 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 Reson8 after 2.93%, at the median.
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