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NVIDIA Nemotron 3.5 Transcribe vs OpenAI GPT-4o Transcribe

Specs, pricing, and capabilities side by side, plus outputs generated from identical prompts, so the only variable between the columns is the model.

Cloud

NVIDIA's open-weight speech recognition model, a 30B mixture-of-experts with about 4B active parameters, that transcribes recordings of up to an hour in multiple languages.

Learn more about Nemotron 3.5 Transcribe →
Cloud

OpenAI's most accurate hosted transcription model, which follows a hint for names and terms and returns plain text without timestamps.

Learn more about GPT-4o Transcribe →
Overview
Creator
NVIDIA
OpenAI
Released
Oct 2026
Mar 2025
Available on
OpenRouter
OpenAIOpenRouter
Model ID
nvidia/nemotron-3.5-transcribe
openai/gpt-4o-transcribe
Specs
Pricing
$0.001 per minute of audio
$0.006 per minute of audio
Type
Speech-to-text
Speech-to-text
Languages
Multilingual
Multilingual
Samples
Plain dictationBaseline accuracy and punctuation on clean speech
0:00 / 0:10
No sample yet
Matches the script

Thanks for joining on such short notice. We moved the launch to Thursday, so could you send me your notes before lunch? I will share the final schedule with everyone tomorrow morning.

Numbers and namesHow dates, amounts, units and a surname are written out
0:00 / 0:19
No sample yet

Invoice 4471 is due on March 3rd, 2027. The total comes to $1,249.50 for twelve units, and the parcel weighs 2.5 kilograms. Please call Dr. Elena Markovich at 9:45 AM to confirm.

Two speakers over noiseBackground noise, a second accent, speaker changes
0:00 / 0:13
No sample yet
32 words differ

Excuse me, is this seat taken?

Every transcript is the model’s first result for the shared clip (no cherry-picking), transcribed via OpenRouter. The clips are synthetic speech made with ElevenLabs v4, and an underlined word differs from the spoken script. Hover a copy icon to read the script.

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