1st April 2026 - Link Blog
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Announcing 1-bit Bonsai. PrismML is a newly out-of-stealth AI lab with a focus on researching "can we massively multiply intelligence in models without increasing their size or complexity?".
Their first model release is a model called Bonsai, and it's very small indeed: it comes in 1.7B, 4B and 8B parameter sizes but uses 1 bit parameters. Here are the sizes of the resulting models on Hugging Face:
| Model | Size |
|---|---|
| Bonsai-8B-mlx-1bit | 1.3 GB |
| Bonsai-8B-gguf | 1.16 GB |
| Bonsai-4B-gguf | 572 MB |
| Bonsai-4B-mlx-1bit | 645 MB |
| Bonsai-1.7B-gguf | 248 MB |
| Bonsai-1.7B-mlx-1bit | 285 MB |
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