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metadata
base_model: openbmb/MiniCPM5-2B
base_model_relation: quantized
library_name: transformers
license: apache-2.0
pipeline_tag: text-generation
tags:
  - minicpm
  - compressed-tensors
  - vllm
  - quantized
  - fp8

MiniCPM5-2B · FP8 (dynamic)

8-bit quantization of openbmb/MiniCPM5-2B for vLLM serving. Quantized by axteam.

Base model openbmb/MiniCPM5-2B
Method FP8 (dynamic)
Format compressed-tensors FP8_DYNAMIC
Weights / activations W8A8 — FP8 E4M3 weights (per-channel), dynamic per-token FP8 activations
Architecture Dense (Llama-architecture) · text-only
Size on disk ~2.8 GB
Calibration None (data-free)
License Apache-2.0

Quantization details

  • Scheme — W8A8 — FP8 E4M3 weights (per-channel), dynamic per-token FP8 activations, stored as compressed-tensors FP8_DYNAMIC.
  • Kept in BF16 — token embeddings, the LM head, and all RMSNorms (a small fraction of parameters).
  • Post-training quantization (no retraining). Tokenizer / chat_template identical to the original.

Evaluation (measured)

Fidelity to the BF16 original on an internal mixed EN/KO set (100 prompts, BF16 greedy answers scored under each build).

Metric This model BF16 original
Perplexity (lower = closer) 1.6494 1.5988 (+3.2%)
Top-1 next-token agreement 92.9% 98.9%

Usage (vLLM)

vllm serve axteam/MiniCPM5-2B-FP8-dynamic

License

Quantized derivative of openbmb/MiniCPM5-2B (Apache-2.0). Original weights & tokenizer belong to OpenBMB.


한국어 요약

openbmb/MiniCPM5-2B 를 FP8 (dynamic) 로 양자화한 서빙용(8-bit) 모델입니다. 작성: axteam.

  • 방식 — FP8 E4M3, 가중치 채널별 스케일(정적·보정불필요), 활성화 동적 FP8. 형식 compressed-tensors FP8_DYNAMIC.
  • BF16 유지 — 토큰 임베딩·LM 헤드·모든 norm.
  • PTQ(재학습 없음), 토크나이저·chat_template 원본 동일.
  • 품질(실측) — BF16 대비 perplexity 1.6494(원본 1.5988, +3.2%), top-1 92.9%(원본 98.9%). 내부 영/한 100문항.
  • 사용 — vllm serve axteam/MiniCPM5-2B-FP8-dynamic. 라이선스 Apache-2.0(원본 OpenBMB).