Track what 
GrokTells
64 million users about your brand.
Promptmonitor monitors your brand's mentions, citations, and competitor visibility inside Grok daily, alongside 7 other AI models.
Trusted by 5,000+ marketing teams worldwide
Does Grok matter for your brand?
Yes, if:
- Your buyers are on Twitter: Grok is embedded inside X (formerly Twitter), and every X Premium subscriber gets access by default. X has roughly 400 million monthly active users. If your audience is active on X, they are one tap away from asking Grok about your category.
- You sell in the US market: Grok holds 17.8% of the US chatbot market as of January 2026 (Reuters/Apptopia), up from 1.9% a year earlier. That makes it the third most-used AI chatbot in the country behind ChatGPT and Gemini.
- Your category generates social conversation:Grok's real-time X data access makes it strongest for consumer brands, SaaS tools, crypto, media, and anything that trends. If your category shows up in X conversations, it shows up in Grok's answers.
Grok pulls information from Twitter in real time
Grok reflects what people are saying about you right now. It has direct, real-time access to Twitter (X). When someone asks Grok about your category, it pulls live posts, trending conversations, news articles, and web content into a single answer.
This means Grok visibility can shift in hours. A customer posts a thread praising your competitor. It gets traction — and Grok starts citing it in category prompts the same day. Your visibility drops without any change to your website, your SEO, or your content. You would not know unless you were tracking daily.
Promptmonitor captures these shifts as they happen. You see when Grok's response to your tracked prompts changes and which new sources it started citing.
How Grok compares to other AI models for brand visibility
Grok
ChatGPT
Gemini
Perplexity
Primary data source
X posts + web (real time)
Training data + web search
Google Search index + YouTube
Web search (live)
Citation volatility
High (shifts in hours)
Moderate (shifts in days/weeks)
Moderate
Moderate
Strongest for
Consumer, tech, trending topics
General, B2B, product research
Google-adjacent queries
Research, sourced answers
US market share (Jan 2026)
17.8%
52.9%
29.4%
~3%
Tracked by Promptmonitor
Yes, daily
Yes, daily
Yes, daily
Yes, daily
Primary data source
X posts + web (real time)
Training data + web search
Google Search index + YouTube
Web search (live)
Citation volatility
High (shifts in hours)
Moderate (shifts in days/weeks)
Moderate
Moderate
Strongest for
Consumer, tech, trending topics
General, B2B, product research
Google-adjacent queries
Research, sourced answers
US market share (Jan 2026)
17.8%
52.9%
29.4%
~3%
Tracked by Promptmonitor
Yes, daily
Yes, daily
Yes, daily
Yes, daily
"Grok surprised us. We weren't tracking it for three months, assumed it didn't matter, then realized it was citing our competitor in most of our category prompts. Promptmonitorcaught it, and we fixed the content gap before it spread."
Steve Lee
Founder, SEO Aesthetic (Ex-Google, Microsoft)Grok grew 9× in 12 months. Track it before your competitors do.
Grok tracking FAQ
Depends on your buyers. If they use X for industry conversations, product research, or peer recommendations, Grok influences their perception. If your buyers never open X, Grok is a lower priority. Promptmonitor lets you track all 8 models and weight your reporting based on what matters.
Yes. Grok has direct access to X's full post index in real time. This makes it different from every other major AI model, which rely on training data plus periodic web search. A trending post about your brand can affect Grok's answers within hours.
Independent benchmarks in 2026 have flagged Grok's factual accuracy as weaker than ChatGPT, Claude, or Perplexity on research and technical queries. Grok's strength is real-time social data and cultural relevance. That is worth tracking for brand visibility even if you would pick a different AI for deep research.
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