To see ai just search in ddg.

https://en.wikipedia.org/wiki/DuckDuckGo

In July 2016, DuckDuckGo officially announced the extension of its partnership with Yahoo! that brought new features to all users of the search engine, including date filtering of results and additional site links. It also partners with Bing, Yandex, and Wikipedia to produce results or make use of features offered.

Bing biggest of three partner. Read also a while ago bing result very similar to ddg result.