AI assistant by SpaceXSI (formerly xAI). Its own site says: “Grok is an AI assistant built by SpaceXSI.”
Paid from: Plus $8/mo (The X Subscription)Free tier: yesLast verified 2026-10-13Site check: live
Source: vendor pricing page. Prices change; confirm on the vendor site.
Where Grok ranks
Ranked in 1 TaskRanking use case.