Its perfectly reliable for the things you know it to be, such as operations within its context window size.

Don't ask LLMs to "Write me Microsoft Excel".

Instead, ask it to "Write a directory tree view for the Open File dialog box in Excel".

Break your projects down into the smallest chunks you can for the LLMs. The more specific you are, the more reliable it's going to be.

The rest of this year is going to be companies figuring out how to break down large tasks into smaller tasks for LLM consumption.