Fish Audio Transcribe Stream 1 vs Inworld STT-1

Compare

Accuracy and speed

Left gets fewer words wrong. Lower has the final text ready sooner.

Accurate and fast0ms200ms400ms600ms800ms0%2%4%6%8%Words wrong on clean audio (Pipecat WER)
  • Transcribe Stream 11.90% · 123ms
  • STT-12.72% · 41ms

Fish Audio Transcribe Stream 1 is ahead on both datasets together, the Ocular Dataset and time to first text, and Inworld STT-1 on final-text delay. The Pipecat Dataset is too close to call.

Last updated Methodology by Dileep Chagam

Who is better at what

Transcribe Stream 1STT-1
  • Overall WER2.21%5.44%
  • Pipecat Dataset WER1.90%2.72%
  • Ocular Dataset WER2.78%10.60%
  • Time to first text730ms1.06s
  • Final-text delay123ms41ms

Lower is better on every measure. Too close to call means the likely ranges overlap. Our guide explains how word error rate is measured.

Transcribe Stream 1 vs STT-1 FAQ

  • Fish Audio Transcribe Stream 1 is more accurate on the public clips. On the 1,000 public Pipecat clips, Fish Audio Transcribe Stream 1 scores 2.21% and Inworld STT-1 5.44%, so Fish Audio Transcribe Stream 1 makes fewer errors by 3.23 points. On the eight licensed Ocular recordings, Fish Audio Transcribe Stream 1 scores 1.90% and Inworld STT-1 2.72%, with likely ranges of 1.68 to 2.14% and 1.67 to 4.68%. 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. Fish Audio Transcribe Stream 1 finishes the transcript 333ms sooner. Fish Audio Transcribe Stream 1 has the final transcript 730ms after the speaker stops and Inworld STT-1 1.06s, at the median. Both are measured on the same 206 streamed turns.

  • Fish Audio Transcribe Stream 1 finishes the transcript 333ms 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. Fish Audio Transcribe Stream 1 shows first text after 2.78% and Inworld STT-1 after 10.60%, at the median, so Fish Audio Transcribe Stream 1 is 7.82 points lower.

Test your voice agent the same way.

Cekura runs these simulated calls on your agent and scores every one.