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PrismML Releases Ultra-Lightweight Bonsai Image 4B

·2026.05.27 03:53

Key point

PrismML has unveiled Bonsai Image 4B, a 1-bit/ternary-based model that can run locally in the browser via WebGPU.

Details

The PrismML team has released Bonsai Image 4B, a text-to-image Diffusion Transformer model that applies 1-bit and ternary (3-value) quantization technology.

This model offers the following technical advantages:

  • Dramatic lightweighting: The model size is about 3GB, far smaller than FLUX.2 Klein 4B (about 16GB).
  • Local browser execution: It supports WebGPU, allowing it to run 100% locally within a web browser without a separate server.
  • Open source license: It is distributed under the Apache-2.0 license, allowing developers to freely utilize it.

The model has been released via Hugging Face, and its WebGPU-based operation can be tested immediately through the provided demo.

quantizationtext-to-imagediffusion-transformerwebgpuprismmlbonsai-image
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