The xAI Grok OAuth page only mentioned SuperGrok subscribers. An X Premium+ subscription on the X account you sign in with also unlocks Grok access via accounts.x.ai (xAI links the X subscription status to the xAI session automatically — see https://docs.x.ai/grok/faq). Updates the OAuth page title, prereqs, and overview table, plus the provider/configuration/x-search docs that reference the OAuth flow.