AITernary Bonsai 2 27B launches under Apache 2.0
PrismML says the Qwen3.8 27B-based model is 9x smaller than its full-precision counterpart while retaining 98.2% of its aggregate benchmark performance.
TLDR
PrismML announced Ternary Bonsai 2 27B on September 17, 2026, making it available under Apache 2.0. The company says the Qwen3.8 27B-based model retains 98.2% of its full-precision counterpart’s aggregate benchmark performance while being 9x smaller. Two months after the first Bonsai 27B release, its footprint remains 5.9 GB. PrismML says quality has improved, with particularly strong gains in agentic coding, multimodal reasoning and long-horizon tool use.
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Ternary Bonsai 2 27B launches under Apache 2.0
PrismML says the Qwen3.8 27B-based model is 9x smaller than its full-precision counterpart while retaining 98.2% of its aggregate benchmark performance.