One easy way to get around bandwidth costs is to just have the clients of your service communicate directly (via Javascript or other client-side code) with your

One easy way to get around bandwidth costs is to just have the clients of your service communicate directly (via Javascript or other client-side code) with your "machine learning as a service" (MLaaS? :D) vendor. Of course this model only works for certain businesses and allows learning on certain things, but you can go a pretty long way with this.