说明一下：虽然两种方案都叫“20X”，但在 Codex 里，这个 20X 特指每周使用额度。
另外，两档 Pro 计划都没有 5 小时使用限制。
Pro 的 20X 基本就是 Plus 订阅每周使用额度的 20 倍，所以它确实就是字面意义上的“20 倍”。
For clarity, while both are called 20X, in Codex they apply specifically to weekly usage limits. And we also don't have 5h limits for both Pro plans.
The Pro 20X is quite precisely 20X the usage of the Plus subscription, so it does exactly what it says on the tin.