MiniCPM5-1B-NVFP4-W4A4

NVFP4 (W4A4) quantized version of openbmb/MiniCPM5-1B.

Quantized with llm-compressor using the NVFP4 scheme, saved in compressed-tensors format. Both weights and activations are FP4 (W4A4): per-group-16 static fp8 weight scales, and per-group local dynamic fp8 activation scales (static_minmax observer).

Calibration: 128 samples drawn from the canada-quant/hy3-w4a16-mtp-calibration blend (code / math / chat, ~2048 tokens each), formatted through this model's chat template. lm_head is left in bf16.

Loadable directly in vLLM. Needs a Blackwell GPU with CUDA 13 (e.g. RTX 5090) for native FP4 kernels:

vllm serve MaxDevv/MiniCPM5-1B-NVFP4-W4A4 \
  --kv-cache-dtype fp8_e4m3 \
  --attention-backend flashinfer

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Original model below:

• openbmb/MiniCPM5-1B