ggml Adds Q2_0 Quantization to Support Ternary Bonsai

·2026.07.08 23:45

Key point

llama.cpp's ggml library has added Q2_0 quantization for CPU to support Ternary Bonsai models.

Details

Q2_0 quantization support has been added to the ggml library of the llama.cpp project. This update is primarily aimed at supporting Ternary Bonsai models (1.7B, 4B, 8B) and related models to be released in the future.

The key technical features are as follows:

Scope of support: Currently implemented as CPU-only, supporting ARM NEON and a generic scalar fallback.
Completed quantization family: This addition completes the quantization family lineup of Q1_0, Q2_0, Q4_0, and Q8_0.
Future plans: Support for x86, Metal, CUDA, and Vulkan backends is also in preparation.

quantization ggml llama.cpp llm-optimization cpu-inference ternary-bonsai

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