Elon Musk's SpaceXAI is reportedly exploring a four-tier subscription model that combines its Grok AI agent with the X platform. Plans, as reported by Bloomberg, range from a free tier to a $100-per-month "Ultra" package, which would grant access to the Grok Bot AI agent. A more affordable $8 "Lite" tier is also being considered, bundling Grok access, X verification, and fewer ads, as the company aims to boost its recurring subscription revenue.