diff --git a/config/xfyun.json b/config/xfyun.json
index 2a6694c..2d3eba0 100644
--- a/config/xfyun.json
+++ b/config/xfyun.json
@@ -33,9 +33,9 @@
     },
     "llm": {
       "provider": "openai",
-      "api_key": "sk-fc4d59b360475f53401a864db8ce0985010acc4e696723d20a90d6569f38d80a",
-      "base_url": "https://api.qnaigc.com/v1",
-      "model": "deepseek-v3",
+      "api_key": "sk-230701ff1b6143ecbf322b3170606016",
+      "base_url": "https://api.deepseek.com/v1",
+      "model": "deepseek-chat",
       "temperature": 0.7
     },
     "tts": {
diff --git a/engine/pipeline.py b/engine/pipeline.py
index 525ac9e..4110ba3 100644
--- a/engine/pipeline.py
+++ b/engine/pipeline.py
@@ -79,9 +79,9 @@ async def run_pipeline_with_serializer(
     llm = create_llm_service(config.services.llm)
     tts = create_tts_service(config.services.tts, config.audio)
 
-    messages = [{"role": "developer", "content": config.agent.system_prompt}]
+    messages = [{"role": "system", "content": config.agent.system_prompt}]
     if config.agent.greeting and config.agent.greeting_mode == "generated":
-        messages.append({"role": "developer", "content": config.agent.greeting})
+        messages.append({"role": "system", "content": config.agent.greeting})
 
     context = LLMContext(messages)
     user_aggregator, assistant_aggregator = LLMContextAggregatorPair(