gas の問題だったので3b戻す

ml_api/model_loader.py

@@ -10,8 +10,8 @@ def get_model():
     global _model, _tokenizer
 
     if _model is None:
-        print("Loading Qwen2.5-1.5B-Instruct... (Lazy Loading)")
-        model_name = "Qwen/Qwen2.5-1.5B-Instruct"
+        print("Loading Qwen2.5-3B-Instruct... (Lazy Loading)")
+        model_name = "Qwen/Qwen2.5-3B-Instruct"
         # model_name = "Qwen/Qwen2.5-1.5B-Instruct" # はやい
 
         _tokenizer = AutoTokenizer.from_pretrained(model_name)