import torchfrom transformers import AutoModelForCausalLM, AutoTokenizer, BitsAndBytesConfigfrom peft import PeftModel tokenizer = AutoTokenizer.from_pretrained("Qwen/Qwen3-1.7B") bnb_config = BitsAndBytesConfig( load_in_4bit=True, bnb_4bit_quant_type="nf4", bnb_4bit_compute_dtype=torch.bfloat16, bnb_4bit_use_double_quant=True,)base_model = AutoModelForCausalLM.from_pretrained( "Qwen/Qwen3-1.7B", quantization_config=bnb_config, torch_dtype=torch.bfloat16,)model = PeftModel.from_pretrained(base_model, "REPO_ID_QUI") messages = [{"role": "user", "content": "Chi sei?"}]text = tokenizer.apply_chat_template(messages, tokenize=False, add_generation_prompt=True)inputs = tokenizer(text, return_tensors="pt").to(model.device)output = model.generate(**inputs, max_new_tokens=200, do_sample=False)print(tokenizer.decode(output[0][inputs["input_ids"].shape[1]:], skip_special_tokens=True))