diff --git a/metagpt/configs/llm_config.py b/metagpt/configs/llm_config.py
index 39f6e61f1..48130eedc 100644
--- a/metagpt/configs/llm_config.py
+++ b/metagpt/configs/llm_config.py
@@ -32,6 +32,8 @@ class LLMType(Enum):
     MISTRAL = "mistral"
     YI = "yi"  # lingyiwanwu
     OPEN_ROUTER = "open_router"
+    DEEPSEEK = "deepseek"
+    SILICONFLOW = "siliconflow"
 
     def __missing__(self, key):
         return self.OPENAI
diff --git a/metagpt/provider/openai_api.py b/metagpt/provider/openai_api.py
index 47d7df6f1..fa689d54f 100644
--- a/metagpt/provider/openai_api.py
+++ b/metagpt/provider/openai_api.py
@@ -49,6 +49,8 @@ from metagpt.utils.token_counter import (
         LLMType.MISTRAL,
         LLMType.YI,
         LLMType.OPEN_ROUTER,
+        LLMType.DEEPSEEK,
+        LLMType.SILICONFLOW,
     ]
 )
 class OpenAILLM(BaseLLM):
diff --git a/metagpt/utils/common.py b/metagpt/utils/common.py
index e8f150556..eea16bb2e 100644
--- a/metagpt/utils/common.py
+++ b/metagpt/utils/common.py
@@ -660,7 +660,7 @@ def role_raise_decorator(func):
                 if re.match(r"^openai\.", name) or re.match(r"^httpx\.", name):
                     raise last_error
 
-            raise Exception(format_trackback_info(limit=None))
+            raise Exception(format_trackback_info(limit=None)) from e
 
     return wrapper