Deepgram Flux English vs Deepgram Flux Multilingual

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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)
  • Flux English3.90% · 108ms
  • Flux Multilingual4.96% · 114ms

Deepgram Flux English is ahead of Deepgram Flux Multilingual on both datasets together, the Pipecat Dataset, time to first text and final-text delay. The Ocular Dataset is too close to call.

Last updated Methodology by Dileep Chagam

Who is better at what

Flux EnglishFlux Multilingual
  • Overall WER4.00%4.81%
  • Pipecat Dataset WER3.90%4.96%
  • Ocular Dataset WER4.18%4.53%
  • Time to first text791ms793ms
  • Final-text delay108ms114ms

Lower is better on every measure. Too close to call means the likely ranges overlap. For costs, see our breakdown of Deepgram pricing.

Flux English vs Flux Multilingual FAQ

  • Deepgram Flux English is more accurate on both datasets. On the 1,000 public Pipecat clips, Deepgram Flux English scores 4.00% and Deepgram Flux Multilingual 4.81%, so Deepgram Flux English makes fewer errors by 0.81 points. On the eight licensed Ocular recordings, Deepgram Flux English scores 3.90% and Deepgram Flux Multilingual 4.96%, so Deepgram Flux English makes fewer errors by 1.06 points. Word error rate counts incorrect, missing, and extra words, so lower is better.

  • Yes. Deepgram Flux English finishes the transcript 2ms sooner. Deepgram Flux English has the final transcript 791ms after the speaker stops and Deepgram Flux Multilingual 793ms, at the median. Both are measured on the same 206 streamed turns.

  • Deepgram Flux English is the stronger pick for voice agents: it makes fewer errors on real conversations and finishes the transcript 2ms sooner. 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. Deepgram Flux English shows first text after 4.18% and Deepgram Flux Multilingual after 4.53%, at the median.

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