Grok

In short: Grok is ai assistants, content writing and competitor research software, with freemium pricing.

AI assistant from xAI with real-time X and web search for research and content

Grok is an AI assistant made by xAI, the AI company that became part of SpaceX in 2026. It is available at grok.com, in mobile apps and inside X, and is used by marketers for research, content drafting and following live conversations about brands, topics and competitors.

Grok's distinguishing feature for search and social marketers is its access to real-time posts on X alongside web search, which helps with trend research, spotting emerging topics and reviewing how a brand is being discussed. It can also draft copy, summarise documents and analyse uploaded files. As one of the AI assistants that answers questions with web sources, Grok is among the platforms brands check when reviewing their visibility in AI answers.

Grok has a free tier with limits and paid subscriptions for higher usage and access to xAI's more advanced models. xAI also offers its models through a separately billed API for teams building their own tools.