Hi Subham,
Thanks for reaching out. I am an engineer on the Cloud Vision AI team and I can provide a bit of clarity here. This blog post and the associated video is actually an April fools joke from 5 years ago — this product is not real. I myself was not aware of this blog post until I read your email, and I too found the content of the post very misleading and unhelpful. I am working with our blog editors to find a way to avoid this sort of confusion in the future.
You may be interested in our (real)
Product Search API, although it is designed for visual matching, not style prediction.
I am very sorry for the confusion this has caused. Thanks for bringing this to our attention.
All the best,
clayton