---
library_name: mlx
language:
- en
tags:
- mlx
- automatic-speech-recognition
- speech
- audio
- FastConformer
- Conformer
- Parakeet
- medical-asr
- clinical-dialogue
license: cc-by-4.0
pipeline_tag: automatic-speech-recognition
base_model: omi-health/omi-med-stt-v1
---

# Omi Med STT v1 MLX

Full-precision Apple Silicon / MLX export of
[Omi Med STT v1](https://huggingface.co/omi-health/omi-med-stt-v1).

For most Mac users, the smaller q8 export is the recommended default. Use this
repo when you specifically want the full MLX weights.

## Quickstart

```bash
pip install -U "omi-med-stt[mlx]"
omi-med-stt audio.wav --runtime mlx --model omi-health/omi-med-stt-v1-mlx
```

## Evaluation

Full evaluation details: [omi.health/research/omi-med-stt](https://omi.health/research/omi-med-stt/).
Benchmark: 7.18h of real and synthetic clinical speech across dialogue, dictation, medication review, procedures/devices/tests, and general speech. Speed is shown as time to process one hour of audio; lower is faster.

### NeMo vs Open / Local Models

Local GPU baselines were run on A10 where applicable; VibeVoice-ASR 9B used H100.

| Model | WER | M-WER | Drug M-WER | Medical Recall | Speed: time / 1 hour audio (formula-derived x realtime) |
|---|---:|---:|---:|---:|---:|
| VibeVoice-ASR 9B | 11.10% | 1.78% | 1.36% | 98.71% | 5m 20s (11.2x) |
| **Omi Med STT v1 NeMo** | **8.30%** | **2.37%** | **4.75%** | **97.95%** | **25s (146.3x)** |
| Qwen3 ASR 1.7B | 10.72% | 3.13% | 6.11% | 97.21% | 44s (81.1x) |
| Whisper Large v3 Turbo (A10) | 11.98% | 3.93% | 5.88% | 96.45% | 1m 19s (45.8x) |
| Cohere Transcribe 03-2026 | 14.88% | 5.05% | 11.09% | 95.16% | 25s (146.3x) |
| Parakeet TDT 0.6B v3 | 15.26% | 8.01% | 9.50% | 96.34% | 23s (157.9x) |
| Parakeet TDT 0.6B v2 base | 16.45% | 8.36% | 8.60% | 96.20% | 23s (153.8x) |

### Runtime Artifacts

Same internal evaluation as the canonical checkpoint.

| Artifact | WER | M-WER | Drug M-WER | Medical Recall | Speed: time / 1 hour audio (formula-derived x realtime) |
|---|---:|---:|---:|---:|---:|
| NeMo canonical | 8.30% | 2.37% | 4.75% | 97.95% | 25s (146.3x) |
| **MLX full precision** | **8.59%** | **2.65%** | **5.20%** | **97.70%** | **56s (64.5x)** |
| MLX q8 | 8.61% | 2.75% | 5.20% | 97.63% | 53s (67.4x) |

The full MLX export is slightly ahead of q8 on M-WER, but q8 is much smaller and
is the default Mac artifact.

## Compatibility

This is not a drop-in `parakeet-mlx` checkpoint. Omi Med STT v1 includes a
medical adapter, and the supported Mac path is the `omi-med-stt` CLI.

## Links

- Canonical model: [`omi-health/omi-med-stt-v1`](https://huggingface.co/omi-health/omi-med-stt-v1)
- Mac q8 default: [`omi-health/omi-med-stt-v1-mlx-q8`](https://huggingface.co/omi-health/omi-med-stt-v1-mlx-q8)
- CPU GGUF export: [`omi-health/omi-med-stt-v1-gguf`](https://huggingface.co/omi-health/omi-med-stt-v1-gguf)
- Runtime CLI: [`Omi-Health/omi-med-stt-runtime`](https://github.com/Omi-Health/omi-med-stt-runtime)
- Broader evaluation and product context: [omi.health/research/omi-med-stt](https://omi.health/research/omi-med-stt/)

## Safety

Omi Med STT v1 is speech-to-text only. It is not a diagnostic, triage,
prescribing, or clinical decision model, and it is not clinically validated.
Transcripts must be reviewed before any clinical use.