Maybe some people just use free ChatGPT-3.5 and think that not so much useful for now (though it's interesting and will become better). I thought that before u

Maybe some people just use free ChatGPT-3.5 and think that not so much useful for now (though it's interesting and will become better). I thought that before using GPT-4. Difference between 3.5 and 4 is big.