{
  "title": "How do I run a grouped GEMM directly on NF4 packed MoE expert weights, without dequantizing to bf16 first?",
  "summary": "gemm_4bit_grouped runs the routed MoE expert GEMM on bitsandbytes NF4 packed weights in one Triton launch, decoding nibbles in registers with fp32 accumulation and no bf16 expert tensor.",
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