Update app.py

app.py

@@ -101,9 +101,9 @@ LANGUAGES = ['Natural Language'] + PROGRAMMING_LANGUAGES
 # Enhanced model list with categorization
 MODELS = {
     "Code-Specialized": [
-        "deepseek/deepseek-coder-v2-instruct",
-        "mistralai/codestral-latest",
-        "codellama/codellama-70b-instruct",
+        "deepseek/deepseek-coder-v2-instruct:free",
+        "mistralai/codestral-latest:free",
+        "codellama/codellama-70b-instruct:free",
         "qwen/qwen-2.5-coder-32b-instruct:free",
         "agentica-org/deepcoder-14b-preview:free",
     ],