Deepgram Flux MultilingualvsGPT-4o Transcribe

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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 Multilingual4.96% · 114ms
  • 4o Transcribe3.90% · 652ms

Deepgram Flux Multilingual is ahead on the Ocular Dataset and final-text delay, and GPT-4o Transcribe on the Pipecat Dataset.

Last updated Methodology by Dileep Chagam

Who is better at what

Flux Multilingual4o Transcribe
  • Pipecat Dataset WER4.96%3.90%
  • Ocular Dataset WER4.53%12.45%
  • Time to first text793msn/a
  • Final-text delay114ms652ms

Lower is better on every measure. Too close to call means the likely ranges overlap.

Flux Multilingual vs 4o Transcribe FAQ

  • GPT-4o Transcribe is more accurate on clean public clips and Deepgram Flux Multilingual on real conversations. On the 1,000 public Pipecat clips, Deepgram Flux Multilingual scores 4.96% and GPT-4o Transcribe 3.90%, so GPT-4o Transcribe makes fewer errors by 1.06 points. On the eight licensed Ocular recordings, Deepgram Flux Multilingual scores 4.53% and GPT-4o Transcribe 12.45%, so Deepgram Flux Multilingual makes fewer errors by 7.92 points. Word error rate counts incorrect, missing, and extra words, so lower is better.

  • Yes. Deepgram Flux Multilingual finishes the transcript 538ms sooner. Deepgram Flux Multilingual has the final transcript 114ms after the speaker stops and GPT-4o Transcribe 652ms, at the median. Both are measured on the same 206 streamed turns.

  • Deepgram Flux Multilingual is the stronger pick for voice agents: it makes fewer errors on real conversations and finishes the transcript 538ms sooner. A voice agent cannot reply until the final transcript arrives, and the Ocular recordings are real conversations.

  • Only Deepgram Flux Multilingual. GPT-4o Transcribe returns no text until the speaker stops, which matters if your agent reacts to partial transcripts.