Paper
Quantize What Counts: More For Keys, Less For Values ☝️🔑👇🔢
Mohsen Hariri, Alan Luo, Weicong Chen, Shaochen Zhong, Tianyi Zhang, Qifan Wang, Xia Hu, Xiaotian Han, Vipin Chaudhary
Key-favored KV-cache quantization for LLMs: theory shows keys have larger norms and should get more bits; empirics show 4b-K/2b-V preserves up to 98.3% accuracy while cutting memory.