With streaming subscriptions, we're used to cutting our losses quickly; But with AI models, the strategy must be completely opposite: within your financial limits, subscribe directly to the most expensive flagship model. Don't choose free or low-spec versions to save money, because the core variable here isn't just the difference in computing power, but also your mindset. The pain of paying a high fee is an extremely effective driving force. With free tools, people easily fall into a passive or entertainment-oriented usage mode; but faced with a fixed, high monthly expenditure, to avoid "losing money," you'll instinctively seek out complex scenarios that maximize the model's value to offset costs. This cost pressure will force you to increase the difficulty of the tasks you perform. You'll stop using it for meaningless chatter and instead demand that the model handle challenging code refactoring, large-scale data analysis, or assist in complex decision-making. Only by handling these high-value-density tasks can you psychologically and practically balance the subscription fee. Therefore, don't treat AI subscription fees as a consumer expense, but rather as a production cost that must generate a return. There's only one metric: have you created actual value far exceeding the subscription fee through intensive use? If you feel bad about the bill, the solution is not to cancel your subscription, but to create more valuable output.