OpenAI has been doing the same thing gradually. Codex launched with
generous Plus limits, then they introduced the $100 Pro tier, and Plus
limits have quietly tightened since. With the same repetitive tasks I
was running, consumption is noticeably higher now for the same output.
The pattern feels deliberate — make the $20 tier just uncomfortable
enough that power users upgrade, without officially announcing the
reduction. If it continues, $20 buys you a demo and $100 buys you
actual work.