If that Nemotron Transcribe speed number was measured with lots of streams running at once, it's a batch number.
Good for chewing through an archive of recordings, much less useful for a voice agent.
Running many streams together keeps the GPU busy and pushes total throughput up, even if each single stream waits longer.
A voice agent is one stream with a person waiting on the other end. The number we should focus on is time to first words at concurrency 1 imo
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To measure speed and cost efficiency, we benchmarked Nemotron 3.5 Transcribe on DeepInfra's hosted endpoint. On DeepInfra, it reaches a Speed Factor of 75x, transcribing 1 minute of audio in under 1 second, and costs $2.00 per 1,000 minutes of audio.
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