I pay for ChatGPT Plus, and the quality of this service is absolutely unacceptable.Yesterday, I asked ChatGPT to perform calculations and extract specific information. Even after 10 attempts, it repeatedly failed to complete the task correctly. It provided incorrect calculations, inaccurate information, and completely irrelevant answers.Image generation is just as terrible. Even after five attempts with clear, detailed instructions, it still failed to produce what I requested.The biggest problem is that ChatGPT consistently ignores instructions, repeats the same mistakes, invents information, and fails to correct itself even after being explicitly told what went wrong.I have repeatedly instructed the system to prioritize accuracy over speed, carefully analyze information, and follow my exact requirements. Yet it continues to rush, make ridiculous mistakes, and waste my time.What makes this even worse is that ChatGPT often confidently presents incorrect information as fact. This makes the service not only frustrating but potentially dangerous when users rely on it for important decisions.I am paying for a premium service, yet I constantly have to correct the AI, repeat myself, and spend more time fixing its mistakes than I would spend doing the work myself.A paid AI assistant should save time, not waste it. It should follow instructions, perform basic calculations accurately, and learn from corrections within a conversation.At this point, the service feels unreliable, poorly optimized, and nowhere near the quality advertised.Extremely disappointing. A complete waste of money and time. OpenAI needs to seriously address the reliability, accuracy, and instruction-following problems of ChatGPT.