diff --git a/applications/Chat/coati/trainer/ppo.py b/applications/Chat/coati/trainer/ppo.py
index 2db604fc9..cf7525495 100644
--- a/applications/Chat/coati/trainer/ppo.py
+++ b/applications/Chat/coati/trainer/ppo.py
@@ -210,9 +210,6 @@ class PPOTrainer(Trainer):
     def save_model(self, path: str, only_rank0: bool = False, tokenizer: Optional[PreTrainedTokenizerBase] = None) -> None:
         self.strategy.save_model(model=self.actor, path=path, only_rank0=only_rank0, tokenizer=tokenizer)
 
-    def save_model(self, path: str, only_rank0: bool = False, tokenizer: Optional[PreTrainedTokenizerBase] = None) -> None:
-        self.strategy.save_model(model=self.actor, path=path, only_rank0=only_rank0, tokenizer=tokenizer)
-
 
 def _set_default_generate_kwargs(strategy: Strategy, generate_kwargs: dict, actor: Actor) -> None:
     origin_model = strategy._unwrap_actor(actor)