At scale, processing thousands of highly granular items (images) in any way is an embarrassingly parallel task even in its most crude and naive implementation.

At scale, processing thousands of highly granular items (images) in any way is an embarrassingly parallel task even in its most crude and naive implementation. So claiming "fast", ok, but claiming "scalable" feels like a redundant buzzword, a bit hand-wavey. When you make such generic claims, be quick to explain what you mean, or people will not treat you seriously.