What is Grok?
xAI Grok
Grok is the AI assistant built by xAI, the AI company founded by Elon Musk, and it is built into the social network X. Grok draws on web results and posts on X, so social conversation can shape how it describes brands.
Grok is xAI's AI assistant, available inside X and as its own app and website.
It can search both the web and posts on X, so social conversation feeds its answers.
Your presence and reputation on X matter more for Grok than for most other AI engines.
How Grok works
Grok works like other AI assistants, with one key difference: it has direct access to posts on X. xAI launched Grok in November 2023 for paying X subscribers and has since made it available on grok.com, in mobile apps and inside X itself.
Grok can draw on three kinds of information:
Training data: what its models learned before their knowledge cutoff.
Web search: current pages it retrieves and cites while answering.
X search: posts, replies and trending discussions on X.
xAI and X have been closely tied from the start. xAI acquired X in March 2025, and SpaceX acquired xAI in February 2026.
Why X conversation shapes Grok's answers
X conversation shapes Grok's answers because Grok can treat posts as sources, which most other engines rarely do. What people say about your brand on X can show up in Grok's description of you quickly.
Consider an example. A user asks Grok whether a new running shoe is worth buying. If a wave of posts on X complains about the sole wearing out, Grok may mention that complaint, even if professional reviews are positive. A product launch that gets wide positive discussion on X can lift a brand in the same way.
This cuts both ways, and it is noisy. Posts can be fast, emotional and unverified. Grok's view of your brand can swing with a viral thread, which makes AI brand sentiment worth watching closely in Grok.
Grok vs other AI assistants
Grok differs from ChatGPT, Gemini and Claude mainly in its source mix. All of them use training data and web search, but only Grok has native access to X.
Freshness: Grok can pick up a discussion within hours, through posts on X.
Tone: social posts carry more opinion than reviews or documentation, so answers can reflect public mood.
Audience: Grok's users overlap heavily with X's users, which may differ from your audience in other engines.
Treat Grok as its own channel in your tracking. A brand with strong reviews and weak social presence can look very different in Grok than in ChatGPT, and the fix is different too.
How to improve how Grok describes your brand
You improve how Grok describes your brand by combining the usual AI search fundamentals with attention to X.
Track Grok separately: run your prompts in Grok and compare tone and mentions with other engines.
Be present on X: share launches, answers and useful information from your official account.
Respond to complaints: visible, helpful replies add context to negative threads.
Earn coverage: independent reviews and media still feed Grok's web search.
Keep your site clear: crawlable pages with plain facts give Grok accurate sources to cite.
Do not try to game X with fake accounts or coordinated posts. It breaks X's rules, and the damage to trust lasts longer than any short-term gain.
How KIME tracks Grok
KIME tracks Grok as one of ten AI engines, by country and language. Track & Analyze shows how often Grok mentions your brand and competitors for your tracked prompts, where you are placed and how your sentiment moves over time. Because Grok reacts to conversation on X, comparing its sentiment with other engines helps you spot social issues before they spread.
Frequently asked questions
Does Grok use posts from X in its answers?
Yes. Grok can search posts on X as well as the web, and use them when it answers. That gives Grok access to fast-moving discussion, but it also means opinions and unverified claims can influence its answers. Watching how Grok describes your brand helps you catch shifts in social conversation early.
Is Grok only available on X?
No. Grok is built into X, but xAI also offers it on grok.com and in mobile apps, and developers can access its models through xAI's API. The same underlying models and sources sit behind these surfaces, though features can differ by plan and platform.
How can my brand appear in Grok's answers?
Combine standard AI search work with attention to X. Make your website clear and crawlable, earn independent coverage that Grok's web search can find, and keep an active, helpful presence on X. Then track Grok separately from other engines, because its answers can differ a lot in tone and sources.