Update app.py

app.py

@@ -24,7 +24,7 @@ from openai import OpenAI
 # Load Hugging Face token if needed
 hf_token = os.getenv("HF_TOKEN")
 openai_api_key = os.getenv("OPENAI_API_KEY")
-client = OpenAI(api_key=openai_api_key)
+
 system_prompt_t2v_path = "assets/system_prompt_t2v.txt"
 system_prompt_i2v_path = "assets/system_prompt_i2v.txt"
 with open(system_prompt_t2v_path, "r") as f:
@@ -113,6 +113,7 @@ def enhance_prompt_if_enabled(prompt, enhance_toggle, type="t2v"):
     ]
 
     try:
+        client = OpenAI(api_key=openai_api_key)
         response = client.chat.completions.create(
             model="gpt-4o-mini",
             messages=messages,