How is it different from OpenCV?
There's not a lot of "there" there yet, an http API layer on top of Tensorflow and YoLo essentially. But looks like a tidy start.
OpenCV is a large and sprawling compendium of computer vision tools that features a scads and scads of classical algorithms, image processing filters, video processing tools. . . there's even a set of GUI components in there. But not much in the way of deep learning.