Why is GPT so useless compared to claude for programming?

I really have to ask this, ive been using both claude and GPT for assisting wtih few things for a game, and claude's limits are getting on my nerve, however.... no matter what i do, gpt always messes up the code or does a lazy implementation that does not correspond with what i asked of it whatsoever.

I asked make animation for pixelated head and gave it exact example of a working code to imitate, litterly a working code, just needed minor correction. After 29 tries, i got nothing, NOTHING. It made its own script and ignored all functions that i fed it, like wtf? Ut wouldnt listen to my instructions NI MATTER WHAT I DID.

But hey claude's limit was over after those 29 horrible tries... and claude finished it in ONE TRY. what am i doing wrong? This keeps happening every time i use GPT, ITS NOT THE FIRST TIME. Its so horrible at coding, am i using it wrong or something?