After Amazon recently TOSd my photo backups with no explanation I began looking into solutions where Ai recognition could be used completely offline.
I found this app called Exire Foto which does a pretty good job at tagging and an excellent job at deduping. I work in volume photography and it’s able to quickly and accurately dedupe a huge amount of files.
I’m not a shill, so I will admit that there are limits and the software doesn’t nail the tags every time. On the upside the tags are written to directly to the files so wherever they end up that data is persevered.
I’m unsure if I will continue to use this after Synology adds object recognition back to the Photos app. If Synology doesn’t write their image tags to the files then Excire may be a better solution depending on your use case.
Hope this is useful to someone out there.