Ternary Bonsai 2 27B: 9x smaller than Qwen3.8 27B at 98.2% performance, Apache 2.0
cephaloform · x · 2026-09-18
PrismML released Ternary Bonsai 2 27B, a ternary-quantized version of Qwen3.8 27B that is 9x smaller than its full-precision counterpart, weighs just 5.9 GB, and retains 98.2% of the aggregate benchmark performance. Compared to the first Bonsai 27B from two months ago, the biggest change is quality: gains are strongest in agentic coding, multimodal reasoning, and long-horizon tool use. Released under Apache 2.0, with the team claiming it now closes in on Qwen3.8 27B across coding, math, instruction following, agentic, and vision tasks.
Related event: PrismML's Ternary Bonsai 2 27B Shrinks to 5.9GB, Retains 98.2% Performance(20 posts)→
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