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FastVLM.net

FASTVLM-0.5B · TRANSFORMERS.JS · WEBGPU

FastVLM Playground

Run real-time visual understanding in a compatible browser. The embedded experience below is the original FastVLM WebGPU demo.

In-browser inference Camera input No local install

Live WebGPU demo

The first visit downloads and compiles the model. Keep this tab open; progress and controls appear inside the embedded demo.

Open demo directly

Hugging Face Space · apple/FastVLM-0.5B · Transformers.js · WebGPU

Browser requirements

  • A current desktop version of Chrome or Edge with WebGPU enabled is the safest option.
  • A WebGPU-capable GPU and enough free memory for the model and browser tab.
  • Camera permission is only needed for live-camera input; allow it when the embedded demo asks.
  • The initial model download is much slower than later runs and depends on your connection.

What model does this use?

The browser playground targets FastVLM-0.5B, the smallest FastVLM variant. Apple links this real-time Transformers.js + WebGPU experience from its official research page.

Apple Research

Privacy and data flow

Model inference is designed to happen in your browser. FastVLM.net does not receive your camera frames. The embedded Hugging Face application and your browser still handle standard requests, model downloads and permissions; review their policies for complete details.

Troubleshooting

The demo stays blank

Wait for the iframe and model assets to load, then try opening the demo directly. Disable strict content blockers for the embedded application if needed.

WebGPU is unavailable

Update Chrome or Edge, confirm hardware acceleration is enabled, and check that your GPU is not blocklisted by the browser.

Camera does not start

Allow camera access for both fastvlm.net and the embedded Hugging Face app, then reload the page.

The first run is slow

This is expected while model weights download and WebGPU shaders compile. Later visits can be faster when browser caching is available.

See the playground in action

A short recording of the FastVLM browser experience. The interactive iframe above remains the primary demo.

Continue building with FastVLM

Compare model sizes or move from the browser playground to a reproducible Transformers workflow.

Compare models Read Transformers guide