Yes, mostly. Copilot handles major languages and common idioms well, because they appear often in the text it learned from. Regional dialects and rare local expressions are less reliable, so for anything important, ask a native speaker to check the output before you use it.
More in How AI Works
Why does AI-generated text all sound the same?
Because with no context, AI falls back on the most average wording it knows, so everything comes out alike. Give it your own examples, your house style and a description of who the reader is. Then do a human edit before anything goes live, because that edit is what makes the text sound like you.
Has AI Search got worse?
No, the problem is mostly the internet itself. There is more AI-generated content and misinformation online than ever, which makes it harder for any search tool to tell good sources from bad ones. At citing its sources, AI search is actually getting better, and results improve when you tell it which sources to use.
What is the difference between a reasoning Model and a Normal AI Model?
A reasoning model thinks through a problem step by step before it answers, while a fast everyday model replies straight away with the first likely answer. Reasoning models do not know more, they spend longer thinking. That makes them slower but better at complex tasks such as analysis, planning and maths.