It depends on who you ask. AI tools use a lot of natural resources. The best thing we can do is be mindful about our use of AI, and consider how else we might solve a problem, as well as considering if we really need what we are asking. Using AI to check your grammar is great if your English teacher says you can! Using AI to make a cartoon photo of yourself might provide a fleeting moment of joy, but you could probably draw it yourself, or pay an artist to do so. 

Remember that AI uses real content to learn. When you use it to "create" images, it is combining images from real artists, often without their permission. 

If you submit a prompt to AI, the tool will use that prompt for further learning. Be mindful if you are giving it information about yourself or your creative work. 

AI can provide responses that are problematic or heavily biased, including responses that target people based on their race, sex, gender identity, or other factors. Using websites like SpeechMap (see above) can tell you which AI tools are more or less likely to have problematic responses.