Update app.py

app.py

@@ -12,7 +12,7 @@ from fastapi.responses import JSONResponse, StreamingResponse
 # ---------------------------------------------------------------------
 BYTEZ_CHAT_URL = "https://api.bytez.com/models/v2/openai/v1/chat/completions"
 BYTEZ_MODELS_URL = "https://api.bytez.com/models/v2/list/models"
-BYTEZ_IMAGE_URL = "https://api.bytez.com/models/v2/openai/dall-e-3"
+BYTEZ_IMAGE_URL = "https://api.bytez.com/models/v2/google/imagen-4.0-ultra-generate-001"
 BYTEZ_AUTH = os.getenv("BYTEZ_API_KEY")          # your Bytez key
 LOCAL_API_KEY = os.getenv("LOCAL_API_KEY")      # optional local guard
 BYTEZ_AUTH_2 = os.getenv("BYTEZ_API_KEY_2")