Update app.py

app.py

@@ -14,7 +14,7 @@ os.environ["TOKENIZERS_PARALLELISM"] = "false"
 
 # Default settings
 class ChatConfig:
-    MODEL = "google/gemma-7b-it:free"  # Use OpenRouter's Gemma model
+    MODEL = "google/gemma-3-27b-it:free"  # Use OpenRouter's Gemma model
     DEFAULT_SYSTEM_MSG = "You are an AI assistant answering only based on the uploaded PDF."
     DEFAULT_MAX_TOKENS = 512
     DEFAULT_TEMP = 0.3
@@ -98,7 +98,7 @@ def generate_response(
     try:
         # Use OpenRouter to get the response
         completion = client.chat.completions.create(
-            model="google/gemma-7b-it:free",
+            model="google/gemma-3-27b-it:free",
             messages=messages
         )
         return completion.choices[0].message.content