Bonsai 2 27B
Bonsai 2 27B is PrismML’s second-generation vision-language flagship, derived from Qwen3.8-27B. Ternary language weights and a hybrid linear/full-attention backbone reduce deployment footprint while retaining language reasoning, coding, image understanding, and agent-oriented capabilities. The current card specifies 27.36B total parameters, 262K context, and two GGUF packing formats; the vision encoder ships separately. Apache-licensed weights became available September 17. The September 24 smart-glasses coverage concerns deployment of Bonsai technology rather than a new named checkpoint. Compression quality and throughput claims depend on evaluation setup, hardware, packing, and runtime support.
2026-09-17
27.36B
Ternary hybrid-attention vision-language Transformer
Apache-2.0
Specifications
- Parameters
- 27.36B
- Architecture
- Ternary 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
- Qwen3.8-27B
- API Access
- Not Available
- Chat Interface
- Not Available
- Variants
- PTQ1_0 (dense trits)PQ2_0 (2-bit slots)GGUFMLX 2-bit
Capabilities & Limitations
- Capabilities
- visionreasoningcodingagentic language generationlocal inference
- Known Limitations
- Image support requires the separate vision encoder packageFull context raises runtime memory beyond packed-weight sizeCurrent packings require compatible specialized inference support
- Notable Use Cases
- private multimodal assistantslocal coding agentslong-document analysis
- Tool Use Support
- Yes