The big change is one shared pool of AI usage. Instead of separate limits for each product, every paid plan gets a single allowance that covers the Grok apps, the Grok tab inside X and Cursor’s coding agents. Within Grok it covers chat, image making, voice and Grok Bot.
That allowance refreshes every week, not every month, so a single heavy day won’t burn through your whole month. Run out and you can buy top-ups or wait for the reset. Your remaining usage shows in settings.
For coders, Premium unlocks the Cursor features most people pay for: code hosting, AI code reviews, cloud agents and automations. Cursor is the AI coding assistant SpaceXSI bought earlier this year (reports differ on whether the deal closed in June or August). The company says each new tier includes at least twice the coding usage, on its own models, of the matching old standalone Cursor plan.
On the X side, Plus behaves like the old basic Premium with a checkmark and fewer ads. From Premium up, ads disappear on most parts of the app.