diff --git a/app/services/llm_service.py b/app/services/llm_service.py
index 6bfd73b..97f52e4 100644
--- a/app/services/llm_service.py
+++ b/app/services/llm_service.py
@@ -38,7 +38,7 @@ class OpenAIService(LLMService):
         try:
             import openai
             self.client = openai.AsyncOpenAI(api_key=settings.openai_api_key)
-            self.model = settings.openai_model
+            self.model = settings.OPENAI_MODEL
         except (ImportError, AttributeError) as e:
             logger.error(f"Failed to initialize OpenAI service: {e}")
             raise RuntimeError(f"OpenAI service initialization failed: {e}")
@@ -98,7 +98,7 @@ class GeminiService(LLMService):
         try:
             import google.generativeai as genai
             genai.configure(api_key=settings.GEMINI_API_KEY)
-            self.model = genai.GenerativeModel(settings.gemini_model)
+            self.model = genai.GenerativeModel(settings.GEMINI_MODEL)
         except (ImportError, AttributeError) as e:
             logger.error(f"Failed to initialize Gemini service: {e}")
             raise RuntimeError(f"Gemini service initialization failed: {e}")