Model · Multimodal language model

Ternary Bonsai 2 27B

Prism ML's Bonsai 2 27B, a ternary-weight (1.72 bits per weight) build of Alibaba's Qwen3.8-27B that fits in about 5.95 GB, keeps the 262,144-token context and image input, and ships as Apache-2.0 GGUF files that need Prism ML's llama.cpp fork.

Developer

Prism ML

Distribution

Downloadable weights

Artifact licensing

Open-licensed artifacts

License scope

Reviewed release artifacts and mandatory terms; not an assessment of training code or training data openness.

Licenses

Apache License 2.0

Boundary

This record represents the prism-ml/Ternary-Bonsai-2-27B-gguf weight release announced 17 September 2026, at Hugging Face commit b072e1d3b35a0a630cece372c2127528e0994386 (last modified 2026-09-25): the PTQ1_0 and PQ2_0 ternary GGUF packings, the F16 reference GGUF, and the optional mmproj vision files. The earlier Ternary Bonsai 27B and Bonsai 27B releases, the Bonsai 8B, 4B, and 1.7B and Bonsai Image families, the MLX 2-bit companion repository, community derivatives and quantizations, the Qwen3.8-27B base model, and every hosted route for the weights, including OpenRouter's listing, are separate boundaries.

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