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Bonsai 27B

PrismMLOpen WeightsPending Human Review

Bonsai 27B is PrismML’s larger multimodal tier, derived from Qwen3.6-27B and optimized for local devices. It retains a hybrid linear/full-attention language backbone and image understanding, while binary language weights sharply reduce storage and memory needs. The model supports a 262K context, with an optional vision-tower package for image inputs; language-only deployment can omit that package. Apache-licensed weights are provided in GGUF and MLX formats, alongside ternary variants. July 14 is the official public release date. Hardware demonstrations and packed-weight footprints do not remove the additional memory cost of context, activation buffers, and runtime components.

2026-07-14
27B
Low-bit hybrid-attention vision-language Transformer
Apache-2.0

Specifications

Parameters
27B
Architecture
Low-bit hybrid-attention vision-language Transformer
License
Apache-2.0
Context Window
262,144 tokens
Type
multimodal
Modalities
textimage

Benchmark Scores

Advanced Specifications

Model Family
Bonsai
Finetuned From
Qwen3.6-27B
API Access
Not Available
Chat Interface
Not Available
Variants
Bonsai-27B-ggufBonsai-27B-mlx-1bitTernary-Bonsai-27B

Capabilities & Limitations

Capabilities
visionreasoningcodinglocal inferencelong context
Known Limitations
Image support requires the optional vision packagePeak memory depends on context and KV-cache settingsSpecialized low-bit kernels may be required
Notable Use Cases
private visual assistantslocal document analysison-device coding agents

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