diff --git a/metagpt/config2.py b/metagpt/config2.py
index 4b3d82593..c603f2938 100644
--- a/metagpt/config2.py
+++ b/metagpt/config2.py
@@ -99,20 +99,21 @@ class Config(CLIParams, YamlModel):
         dicts += [Config.read_yaml(path) for path in default_config_paths]
         final = merge_dict(dicts)
         return Config(**final)
-    
+
     @classmethod
-    def config(cls,config:dict):
+    def from_llm_config(cls, llm_config: dict):
         """user config llm
         example:
-        llm_config = {"llm": {"api_type": "xxx", "api_key": "xxx", "model": "xxx"}
-        gpt4 = Config.config(llm_config)
+        llm_config = {"api_type": "xxx", "api_key": "xxx", "model": "xxx"}
+        gpt4 = Config.from_llm_config(llm_config)
         A = Role(name="A", profile="Democratic candidate", goal="Win the election", actions=[a1], watch=[a2], config=gpt4)
         """
+        llm_config = LLMConfig.model_validate(llm_config)
         dicts = [dict(os.environ)]
-        dicts += [config]
+        dicts += [{"llm": llm_config}]
         final = merge_dict(dicts)
         return Config(**final)
-    
+
     def update_via_cli(self, project_path, project_name, inc, reqa_file, max_auto_summarize_code):
         """update config via cli"""