I use Claude. It's really good, but you should try to use it as Boris suggests. The other thing I do is give it very careful and precisely worded specs for what you want it to do. I have the habit, born from long experience, of never assuming that junior programmers will know what you want the program to do unless you make it explicit. Claude is the same. LLM code generators are terrific, but they can't second guess unclear communication.

Using carefully written specs, I've found Claude will produce flawless code for quite complex problems. It's magic.