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---
license: apple-amlr
library_name: mlx-vlm
base_model: apple/FastVLM-1.5B
tags:
- fastvlm
- mlx
- mlx-vlm
- vlm
- quantized
- apple-silicon
- 1.5B
- q4 / 4-bit quantized
---
# fastvlm-1.5b-mlx-q4
This repository contains an MLX-converted FastVLM checkpoint.
## Model
- Base model: `apple/FastVLM-1.5B`
- Parameters: `1.5B`
- Precision: `q4 / 4-bit quantized`
- Approx. folder size: `1.4G`
The checkpoint was converted from Apple FastVLM using the official FastVLM model export workflow and patched `mlx-vlm`.
## Files
This repository should include:
- `config.json`
- MLX model weights
- tokenizer files
- `fastvithd.mlpackage` vision tower
## Example Usage
```bash
hf download dbaek111/fastvlm-1.5b-mlx-q4 --local-dir ./fastvlm-1.5b-mlx-q4
python -m mlx_vlm.generate \
--model ./fastvlm-1.5b-mlx-q4 \
--image /path/to/your/image.jpg \
--prompt "Explain the image." \
--max-tokens 64 \
--temp 0.0
```
## Benchmark
Benchmark condition:
- Images: three 512px test images
- Max tokens: `64`
- Temperature: `0.0`
- Same prompt across all tested variants
- Model loaded once, then images processed sequentially
| Model | Size | Load | Img1 | Img2 | Img3 | Avg |
|---|---:|---:|---:|---:|---:|---:|
| fastvlm-1.5b-mlx-q4 | 1.4G | 2.46s | 0.454s | 0.462s | 0.443s | 0.453s |
## Notes
This is a converted and quantized derivative of Apple FastVLM.
Please refer to the original Apple FastVLM repository and model card for license and usage conditions.