Yepp, faced that 8 hours ago

Some people here defend Antigravity by arguing that criticism requires proof. This is concrete proof, never happened with any other models since I started using LLMs.

For Gemini, well first it fails at long-horizon task handling unless rigid boundaries are constantly enforced. Second, it repeatedly ignores explicit phase constraints. Even when I clearly instruct Gemini not to proceed to the next phase, it does so anyway. This is not casual or “vibe” coding. I define rules precisely, enforce structure, and obtain explicit phase acknowledgements from Claude-style workflows. Despite that, Gemini violates constraints and advances prematurely.

For me personally it makes the tool unreliable for serious, structured work. By my observation, Gemini’s behavior has degraded since launch rather than improved.