DeepInfra raises $107M Series B to scale the inference cloud — read the announcement

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nvidia/

NVIDIA-Nemotron-3.5-Transcribe-30B-A4B

$0.00200

/ minute

Nemotron 3.5 Transcribe is an open-weight 30B-A4B speech-augmented language model from NVIDIA for offline transcription in 40 languages. It handles recordings up to one hour and adds speech translation, contextual and speaker-attributed transcription, word timestamps and audio question answering, leading open-weight models on English, long-form and multilingual ASR.

Public
Zero retention
bfloat16
ProjectPaperLicense
nvidia/NVIDIA-Nemotron-3.5-Transcribe-30B-A4B cover image
demo

HTTP/cURL API

You can use cURL or any other http client to run inferences:

curl -X POST \
    -H "Authorization: bearer $DEEPINFRA_API_KEY"  \
    -F audio=@my_voice.mp3  \
    'https://api.deepinfra.com/v1/inference/nvidia/NVIDIA-Nemotron-3.5-Transcribe-30B-A4B'
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which will give you back something similar to:

{
  "text": "",
  "segments": [
    {
      "end": 1.0,
      "id": 0,
      "start": 0.0,
      "text": "Hello"
    },
    {
      "end": 5.0,
      "id": 1,
      "start": 4.0,
      "text": "World"
    }
  ],
  "language": "en",
  "input_length_ms": 0,
  "words": [
    {
      "end": 1.0,
      "start": 0.0,
      "text": "Hello"
    },
    {
      "end": 5.0,
      "start": 4.0,
      "text": "World"
    }
  ],
  "duration": 0.0,
  "request_id": null,
  "inference_status": {
    "status": "unknown",
    "runtime_ms": 0,
    "cost": 0.0,
    "tokens_generated": 0,
    "tokens_input": 0,
    "output_length": 0
  }
}

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Input fields

Input Schema

Output Schema