AI usage limits, explained from the source
How limits actually work on Grok and the X Subscription, Claude, ChatGPT and Cursor: what resets when, what shares a pool, and what happens when you run out. Every fact links to the vendor's own page. Where a vendor doesn't publish a number, we say Not published.
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Grok vs Claude vs ChatGPT: how the limits work
| X Subscription (Grok, Grok Bot, Cursor) | Claude Pro and Max | ChatGPT Plus and Pro (Codex and Work) | |
|---|---|---|---|
| Entry paid price with agent | Premium $30/mo [1] | Pro (see pricing page); Max $100 or $200 [4][5] | Plus; Pro $100, $200 or $500 [7] |
| Short window | None published | 5-hour session [4] | 5-hour window on Plus; none on Pro [7] |
| Long window | Weekly pool [2] | Weekly limit, fixed per account [4] | Weekly allowance [7] |
| What shares the limit | Grok, Grok Bot and Cursor [2] | Claude apps and Claude Code [6] | Codex local, Codex cloud and Work [8] |
| Higher tiers | 4x, 15x or 50x Plus [1] | 5x or 20x Pro per session [5] | Pro tiers have higher allowances [7] |
| Past the limit | Prepaid top-ups, optional cap [3] | Usage credits at API rates [6] | Credits or resets [7][8] |
| Exact caps published? | No | No | No |
Not published: none of the three vendors publishes exact token or message caps for these plans. Any site quoting precise numbers is estimating.