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PrismML released Ternary Bonsai 2 2B, 4B, and 9B on October 15, 2026. The models are ternary versions of the Qwen3.5 base models, using the values -1, 0, and 1, with memory use of 0.43GB, 0.95GB, and 2GB. Ternary Bonsai 2 2B runs at 120 tokens per second on the iPhone 18 Pro Max, and the Locally AI app supports them.
PrismML announced Ternary Bonsai 2 27B, a compressed model built on Alibaba's Qwen3.8 27B. It ships at 5.9GB, one-ninth the size of the base model, and retains 98.2% of Qwen3.8 27B's benchmark scores. PrismML lists gains in reasoning, coding, vision, and long-horizon agent performance over the earlier Bonsai 27B. The model is released under the Apache 2.0 license and published on Hugging Face. PrismML says it runs on Mac, iPhone, and iPad.