import torchfrom transformers import AutoModelForCausalLM, AutoTokenizerfrom peft import PeftModel # Load the native 16-bit base modelbase_model_id = "Qwen/Qwen2.5-32B-Instruct"tokenizer = AutoTokenizer.from_pretrained(base_model_id) model = AutoModelForCausalLM.from_pretrained( base_model_id, torch_dtype=torch.bfloat16, device_map="auto", attn_implementation="sdpa",) # Attach the GRPO-trained LoRA adapteradapter_id = "koushikkb12/Qwen2.5-32B-GRPO-Math"model = PeftModel.from_pretrained(model, adapter_id) # Inferenceprompt = "A train leaves New York at 8:00 AM traveling 60 mph. Another leaves at 9:00 AM at 80 mph. When do they meet?"messages = [ {"role": "system", "content": "You are a logical math assistant. Wrap your final answer in <answer> tags."}, {"role": "user", "content": prompt}] text = tokenizer.apply_chat_template(messages, tokenize=False, add_generation_prompt=True)inputs = tokenizer(text, return_tensors="pt").to("cuda") with torch.no_grad(): outputs = model.generate(**inputs, max_new_tokens=512, temperature=0.7) print(tokenizer.decode(outputs[0], skip_special_tokens=True))