| --- |
| title: BlackRiver Gemma 4 Multimodal |
| emoji: 🌊 |
| colorFrom: blue |
| colorTo: indigo |
| sdk: static |
| app_file: index.html |
| pinned: false |
| short_description: Gemma 4 E2B/E4B with vision, audio and text running locally on WebGPU. |
| models: |
| - onnx-community/gemma-4-E2B-it-ONNX |
| - onnx-community/gemma-4-E4B-it-ONNX |
| --- |
| |
| # BlackRiver AI · Gemma 4 Multimodal |
|
|
| A standalone BlackRiver AI implementation of Gemma 4 for fully local browser inference with WebGPU. |
|
|
| ## Capabilities |
|
|
| - Gemma 4 E2B and E4B model selection |
| - Text conversation |
| - Image understanding |
| - Audio recording and transcription/instruction input |
| - Streaming generation |
| - Local browser cache for model weights |
| - Rendered WebGPU kernel inspection |
| - No inference server: prompts and media stay on the user's device |
|
|
| The first model load downloads the selected ONNX weights from Hugging Face. A WebGPU-capable browser and sufficient GPU memory are required. E4B requires more memory than E2B. |
|
|
| ## BlackRiver AI implementation |
|
|
| This Space packages the models into a unified BlackRiver interface and adds the multimodal browser workflow used here, including image attachment, microphone capture, 16 kHz audio preparation, E2B/E4B selection and media-history handling for reliable repeated generations. |
|
|
| BlackRiver AI does not claim authorship of the underlying models or the original WebGPU research work. |
|
|
| ## Credits |
|
|
| - **Gemma 4 models:** Google — [Gemma 4 E2B](https://huggingface.co/google/gemma-4-E2B) |
| - **ONNX model conversions:** [ONNX Community E2B](https://huggingface.co/onnx-community/gemma-4-E2B-it-ONNX) and [E4B](https://huggingface.co/onnx-community/gemma-4-E4B-it-ONNX) |
| - **Browser runtime:** [Transformers.js](https://huggingface.co/docs/transformers.js) |
| - **Original WebGPU demo foundation:** [WebML Community](https://huggingface.co/spaces/webml-community/gemma-4-webgpu-kernels) |
| - **Original optimized WebGPU kernels:** Fable 5, as credited by the upstream demo |
|
|
| Model use remains subject to the licenses and terms published in the respective model repositories. |
|
|
| ## Files |
|
|
| - `index.html` — complete BlackRiver multimodal interface |
| - `transformers-gemma4.js` — Gemma 4 E2B/E4B Transformers.js adapter |
| - `landing.js` — landing-page WebGL background |
|
|
| No build step or server backend is required. |
|
|
