On Wednesday Bing announced a new custom search that will be commercial grade and Ad free.
The custom search is targeted at people with a hobby or an enthusiast so they are able to really dig into a niche and get Bing’s custom search results. The difference is the AI of the tool lets you pick and choose and make things very specific to what you want to see or learn about.
You can read and learn more about it from the Bing blog: https://blogs.bing.com/2017-05/build-your-own-web-search-service-with-bing-custom-search