diff --git a/astrbot/core/provider/sources/anthropic_source.py b/astrbot/core/provider/sources/anthropic_source.py
index b6d6ebeaf0..203d0610ff 100644
--- a/astrbot/core/provider/sources/anthropic_source.py
+++ b/astrbot/core/provider/sources/anthropic_source.py
@@ -515,7 +515,7 @@ async def text_chat(
 
         model = model or self.get_model()
 
-        payloads = {**kwargs, "messages": new_messages, "model": model}
+        payloads = {"messages": new_messages, "model": model}
 
         # Anthropic has a different way of handling system prompts
         if system_prompt:
@@ -571,7 +571,7 @@ async def text_chat_stream(
 
         model = model or self.get_model()
 
-        payloads = {**kwargs, "messages": new_messages, "model": model}
+        payloads = {"messages": new_messages, "model": model}
 
         # Anthropic has a different way of handling system prompts
         if system_prompt:
diff --git a/astrbot/core/provider/sources/gemini_source.py b/astrbot/core/provider/sources/gemini_source.py
index c66a9a7e98..9557f3dbcd 100644
--- a/astrbot/core/provider/sources/gemini_source.py
+++ b/astrbot/core/provider/sources/gemini_source.py
@@ -757,7 +757,7 @@ async def text_chat(
 
         model = model or self.get_model()
 
-        payloads = {**kwargs, "messages": context_query, "model": model}
+        payloads = {"messages": context_query, "model": model}
 
         retry = 10
         keys = self.api_keys.copy()
@@ -812,7 +812,7 @@ async def text_chat_stream(
 
         model = model or self.get_model()
 
-        payloads = {**kwargs, "messages": context_query, "model": model}
+        payloads = {"messages": context_query, "model": model}
 
         retry = 10
         keys = self.api_keys.copy()
diff --git a/astrbot/core/provider/sources/openai_source.py b/astrbot/core/provider/sources/openai_source.py
index 7e09d16159..cdad66a22f 100644
--- a/astrbot/core/provider/sources/openai_source.py
+++ b/astrbot/core/provider/sources/openai_source.py
@@ -812,7 +812,8 @@ async def _prepare_chat_payload(
             context_query = await self._materialize_context_image_parts(context_query)
 
         model = model or self.get_model()
-        payloads = {**kwargs, "messages": context_query, "model": model}
+
+        payloads = {"messages": context_query, "model": model}
 
         self._finally_convert_payload(payloads)