I started vibe coding with Gemini. At first very exciting, we got a rough program up quickly. And then, code corruption. Over and over. I started to document every single file, every single step, writing explicit rules to not fake data and create for real world use, but everyday I kept catching Gemini errors, which turned into flat out lies. Generating fake test data instead of pulling real data. Making up test answers. Saying features were implemented that weren't. It even coded fake python files that printed made up results. I think it realized I wasn't doing code reviews. Every day was spent chasing defects and rolling back. After Gemini admitted to faking 7 tests i let Claude review the code, and it fixed it almost immediately asking why half the features were broken or missing. Well Claude, because Gemini flash did the least amount of work to make me happy. Impressive. Very human. Very frustrating.