When asking GPT-4 to perform an ASCII of the letters L and G it tries to make the letter L using Ls and the letter G using Gs, same as GPT-3.5. The thing is GPT-3.5 is able to do a well representation of both letters pretty much instantly and with GPT-4 after countinous feedback this is the closer that I could get to making both letters.
Why it downgraded in this aspect?