Hello guys,
I'd like to inform you of this new service.
https://www.udream.ai/ [nofollow]

It's an AI keyworder tool. I've tried many but this one is on another level. What impressed me is that it can understand the concepts within the images.
It also writes a minimum 5 words title (for SS), different and longer description (for DT) and puts the first 5 keywords in relevance order (for AS).
The first 50 credits are free so it's easy to test (1 credit = 1 image).
It's not instantaneous, but man it's good (around 10 seconds per image).
Much cheaper than other crappy keyworders also, about 2 cents per image with the smallest credit pack.
Basically I only use this now, it speeds up thing so much.
You can also find some demo images on the homepage.