my photo cleanup option not downloaded

Have you updated to iOS18.1 or later? Make sure, you have the most recent update installed. Clean-Up is a part of Apple Intelligence. You may want to check all the Settings mentioned here: How to get Apple Intelligence - Apple Support, particularly the settings for the language and Siri Language - both need to be set to the same, supported language. and keep your device connected to power and Wi-Fi while downloading Apple Intelligence. Make sure, there is enough free storage for the download to happen. As Apple's servers may be busy try again later, if the download does not happen .