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Qwen/Qwen3.8-27B 的李白风格 QLoRA SFT adapter。libai_train_300.jsonl,ShareGPT 格式:system=李白风格人设 + human=创作请求 + gpt=真实李白诗)1from transformers import AutoModelForCausalLM, AutoProcessor, BitsAndBytesConfig
2from peft import PeftModel
3import torch
4
5base = "Qwen/Qwen3.8-27B"
6adapter = "shikunpunk/Qwen3.8-27B-LiBai"
7
8quant = BitsAndBytesConfig(load_in_4bit=True, bnb_4bit_compute_dtype=torch.bfloat16,
9 bnb_4bit_quant_type="nf4", bnb_4bit_use_double_quant=True)
10model = AutoModelForCausalLM.from_pretrained(base, trust_remote_code=True,
11 torch_dtype=torch.bfloat16, device_map="auto",
12 quantization_config=quant)
13model = PeftModel.from_pretrained(model, adapter, is_trainable=False)
14processor = AutoProcessor.from_pretrained(base, trust_remote_code=True)
15model.eval()shikunpunk/Qwen3.8-27B-LiBai-KTO 使用效果更佳。data/libai_train.jsonl(838 条)