SpaceXSI’s new X Subscription bundles Grok, Cursor and X Premium under one bill, with a weekly AI usage pool shared between Grok and Cursor. It is rolling out gradually, and current subscribers can keep their existing plans or switch and link their accounts. SpaceXSI announcement · rollout details

Free is the entry tier. Plus costs $8/month and Premium $30/month; the supplied announcement says Premium includes 4x usage, Grok Bot, Cursor cloud agents and ad-free X on most surfaces. Super costs $100/month for 15x usage, and Ultra costs $200/month for 50x usage. Tier details

The official page says the shared pool covers Grok Chat, Imagine, Voice, Bot and API access, refreshes weekly, and varies in cost by product. If the allowance runs out, users can buy top-ups or wait for the refresh. Third-party models in Cursor, such as Claude or GPT, have no included allowance and are billed at API list prices; spending caps are available. Official pricing and usage terms

Switching is optional. The announcement says eligible existing subscriptions cancel at checkout and unused time is refunded pro rata; availability and any limited-time offers depend on the gradual rollout. SpaceXSI rollout post