For exemple, it used to be able to see the weather quite well. For instance : “It will rain this afternoon, dont forget an umbrella since you have a doctor’s appointment”. Now it says “it’s currently 9 degrees so it will be a cold day” even though it will increase to 17 during the morning and be a warm afternoon.

​https://www.reddit.com/r/bing/comments/1bhll40/what_happened_to_copilot_it_changed_totally_last/