---
tags:
  - onnx
  - openvino
  - speech-recognition
  - npu
  - parakeet
  - nvidia
  - nemo
language: en
license: apache-2.0
base_model: nvidia/parakeet-tdt-0.6b-v3
---

# Parakeet TDT 0.6B v3 — ONNX (NPU-ready)

ONNX export of [nvidia/parakeet-tdt-0.6b-v3](https://huggingface.co/nvidia/parakeet-tdt-0.6b-v3) for use with OpenVINO on Intel NPU.

Includes the bundled NeMo mel spectrogram preprocessor (\) for a self-contained pipeline.

## Files

| File | Size | Description |
|------|------|-------------|
| \ + \ | ~2.5 GB | Conformer encoder (runs on NPU) |
| \ | 73 MB | TDT joint decoder (runs on CPU) |
| \ | 141 KB | Mel spectrogram preprocessor (onnxruntime CPU) |
| \ | 94 KB | 8193-token vocabulary |
| \ | 97 B | Model metadata |

## Pipeline



## Performance (Intel Core Ultra / Meteor Lake NPU)

| Metric | Value |
|--------|-------|
| Load time (cached) | 3.6s |
| Transcribe 3s audio | 0.29s (RTF 0.095) |
| WER (LibriSpeech test-clean) | 3.7% |
| Max audio length | ~16s (MEL_FRAMES=1600) |

## Usage

Used by [npu-whisper](https://github.com/goodsmileduck/npu-whisper) dictation engine:



## Credits

- Original model: [nvidia/parakeet-tdt-0.6b-v3](https://huggingface.co/nvidia/parakeet-tdt-0.6b-v3)
- ONNX export by: [istupakov/parakeet-tdt-0.6b-v3-onnx](https://huggingface.co/istupakov/parakeet-tdt-0.6b-v3-onnx)
- Preprocessor from: [onnx-asr](https://pypi.org/project/onnx-asr/) package