We use Chat precisely because of that!
It's not unreasonable for them to switch but you really should not be so dismissive, this will likely have a massive effect on many.
This is a way of misusing the system and taking away GPU from people who are paying for metered work and the quotas became unsustainable.
Others building harnesses around chat or simply falling back to manual copy/paste mode once hitting limits. Ironically AI makes it easy to automate the tiniest loophole to make it a problem as soon as word gets out.
It's a non-issue for everyone not trying to tokenmaxx and sticking to the spirit of subscriptions, but theoretically these folks SHOULD be on a higher tier that reflects their actual usage.
Edit: I feel like I'm coming off as a corpo sycophant defending OpenAI here... not my intention. Both big AI companies encourage this behaviour by creating complex and inconsistent rules around their plans such that it is impossible to know what a subscription is buying, a large chunk of the value coming from discretionary but quite predictably regular resets. As much as they have every right to change their plans... they got what they asked for with all the folks exploiting the loopholes. I just wonder if we'll ever get any sort of consumer law around these "mystery box" subscriptions with meaningless tiers so everyone can stop wasting energy on finding, exploiting and then fixing pricing loopholes.
As for the 'mystery nature' of subscriptions; you can always pay API rates if you would like. If their API rates are too expensive, very cheap models like DeepSeek V4.1 Flash, etc, are available.