At first, the phrase "my API is my Product" seems misleading. An API is a way to deliver a product, rather than the product itself, right? The term designates a "set of programming instructions designed to access an app." Period. We're talking about a means, rather than an end. That's why there are so many different products relying on APIs: Twilio for phone, Mailjet for email, Google Maps for maps, etc.
A few years ago the best computer vision algorithms were the preserve of a few neural net researchers. Now, anyone can gain access to the best object detection algorithms in the world through public APIs. Wayne Walls, CTO at Filestack, put four of the best through their paces over at their blog.