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README.md
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---
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library_name: transformers.js
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pipeline_tag: image-text-to-text
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---
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https://huggingface.co/vikhyatk/moondream2 with ONNX weights to be compatible with Transformers.js.
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Note: Having a separate repo for ONNX weights is intended to be a temporary solution until WebML gains more traction. If you would like to make your models web-ready, we recommend converting to ONNX using [🤗 Optimum](https://huggingface.co/docs/optimum/index) and structuring your repo like this one (with ONNX weights located in a subfolder named `onnx`).
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---
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library_name: transformers.js
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pipeline_tag: image-text-to-text
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license: apache-2.0
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---
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https://huggingface.co/vikhyatk/moondream2 with ONNX weights to be compatible with Transformers.js.
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## Usage (Transformers.js)
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> [!IMPORTANT]
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> NOTE: Moondream support is experimental and requires you to install Transformers.js [v3](https://github.com/xenova/transformers.js/tree/v3) from source.
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If you haven't already, you can install the [Transformers.js](https://huggingface.co/docs/transformers.js) JavaScript library from [GitHub](https://github.com/xenova/transformers.js/tree/v3) using:
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```bash
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npm install xenova/transformers.js#v3
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```
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**Example:**
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```js
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import { AutoProcessor, AutoTokenizer, Moondream1ForConditionalGeneration, RawImage } from '@xenova/transformers';
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// Load processor, tokenizer and model
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const model_id = 'Xenova/moondream2';
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const processor = await AutoProcessor.from_pretrained(model_id);
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const tokenizer = await AutoTokenizer.from_pretrained(model_id);
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const model = await Moondream1ForConditionalGeneration.from_pretrained(model_id, {
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dtype: {
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embed_tokens: 'fp16', // or 'fp32'
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vision_encoder: 'fp16', // or 'q8'
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decoder_model_merged: 'q4', // or 'q4f16' or 'q8'
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},
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device: 'webgpu',
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});
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// Prepare text inputs
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const prompt = 'Describe this image.';
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const text = `<image>\n\nQuestion: ${prompt}\n\nAnswer:`;
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const text_inputs = tokenizer(text);
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// Prepare vision inputs
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const url = 'https://huggingface.co/vikhyatk/moondream1/resolve/main/assets/demo-1.jpg';
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const image = await RawImage.fromURL(url);
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const vision_inputs = await processor(image);
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// Generate response
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const output = await model.generate({
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...text_inputs,
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...vision_inputs,
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do_sample: false,
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max_new_tokens: 64,
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});
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const decoded = tokenizer.batch_decode(output, { skip_special_tokens: false });
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console.log(decoded);
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// [
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// '<|endoftext|><image>\n\n' +
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// 'Question: Describe this image.\n\n' +
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// 'Answer: A hand is holding a white book titled "The Little Book of Deep Learning" against a backdrop of a balcony with a railing and a view of a building and trees.<|endoftext|>'
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// ]
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```
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We also released an online demo, which you can try yourself: https://huggingface.co/spaces/Xenova/experimental-moondream-webgpu
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<video controls autoplay src="https://cdn-uploads.huggingface.co/production/uploads/61b253b7ac5ecaae3d1efe0c/9q6LTQIYiI3qKrKfAb4D8.mp4"></video>
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---
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Note: Having a separate repo for ONNX weights is intended to be a temporary solution until WebML gains more traction. If you would like to make your models web-ready, we recommend converting to ONNX using [🤗 Optimum](https://huggingface.co/docs/optimum/index) and structuring your repo like this one (with ONNX weights located in a subfolder named `onnx`).
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