Seems like a smart chat bot:

👋 Hello! My name is YouChat, I’m an AI that can answer general questions, explain things, suggest ideas, translate, summarize text, compose emails, and write code for you. I’m powered by artificial intelligence and natural language processing, allowing you to have human-like conversations with me. I am constantly learning from huge amounts of information on the internet, which means I sometimes may get some answers wrong. My AI is always improving and I will often share sources for my answers. Some example queries you can try asking me:

"what is thermodynamics" "write a song about whales in the ocean" "explain the theory of general relativity like I’m 5 years old" "how to write regular expression in python to extract text between two tags"

May also have some connection to Microsoft based on its footer.  Source: YouChat does not use Microsoft Bing web, news, video or other Microsoft Bing APIs in any manner. Other Web links, images, news, and videos on you.com are powered by Microsoft Bing.