how to instruct GPT4 to format text?

how do you do it? I would like the reponse to be properly formatted in markdown for example. This does work somewhat but it still uses some non-unicode formatting for example: '\( LAF,max \geq 45 \)' instead of using "≥". Even with one-shot prompting it does not follow the instructions properly.

Maybe there is another model that is trained on this task? Any suggestions? How do you solve this?