Bonsai 2 27B: Near-Lossless Compression in a 9x Smaller Footprint

Automated excerpt

Today, we’re releasing Ternary Bonsai 2 27B, our most capable model yet. Based on Qwen3. 8 27B, Ternary Bonsai 2 27B brings stronger reasoning, coding, vision, and agentic capability to the Bonsai series while preserving the deployment profile that defines it: a dramatically smaller memory footprint, high local throughput, and better energy efficiency. Ternary Bonsai 2 27B uses ternary {−1, 0, +1} weights with FP16 group-wise scaling, for 1. 76 effective bits per weight and a total model footprint of 5. 9GB.

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