Update app.py

app.py

@@ -55,7 +55,7 @@ def ask(question, openai_api_key, gemini_api_key, anthropic_api_key, file_name =
     try:
         os.environ["OPENAI_API_KEY"] = os.environ.get("OPENAI_API_KEY") # API keys are provided thanks to sponsor credit openai_api_key
         os.environ["GEMINI_API_KEY"] = os.environ.get("GEMINI_API_KEY") # API keys are provided thanks to sponsor credit gemini_api_key
-        os.environ["MODEL_API_KEY"] = os.environ.get("MODEL_API_KEY") # API keys are provided thanks to sponsor credit anthropic_api_key
+        os.environ["ANTHROPIC_API_KEY"] = os.environ.get("ANTHROPIC_API_KEY") # API keys are provided thanks to sponsor credit anthropic_api_key
         
         return run_crew(question, file_name)
     except Exception as e: