Basically everything its used for that isn't being shoved in your face 24/7.
- speech to text
- image recognition
- image to text (includes OCR)
- language translation
- text to speech
- protein folding
- lots of other bio/chem problems
Lots of these existed before the AI hype to the point they're taken for granted, but they are as much AI an LLM or image generator. All the consumer level AI services range from annoying to dangerous.