117 million people used Grok's AI features in March 2026, out of 550 million monthly active users across X and Grok (SpaceX S-1). 1.9 million of them paid for a SuperGrok plan. xAI shipped Grok 3, Grok 4, Grok 4.1, Grok 4.5, Grok 4.6 and Grok 4.7 in 19 months, and Grok cites Reddit, YouTube and Facebook more than X itself. Below are the Grok statistics on usage, subscribers, revenue, model launches, X integration and citation behaviour. Each comes from xAI, SpaceX's SEC filings or an original study, all read on 4 November 2026.
What are the key takeaways?
- 117 million monthly users touch Grok's AI features. That is 21% of the 550 million MAUs across X and Grok at 31 March 2026 (SpaceX S-1).
- 6.3 million paid subscribers across X and Grok. 4.4 million pay for X Premium or Premium+ and 1.9 million for a SuperGrok tier.
- 8% of US adults say they use Grok, against 44% for ChatGPT and 24% for Gemini (Pew Research Center, February 2026).
- Six frontier releases in 19 months. Grok 3 launched in February 2025 and Grok 4.7 in September 2026.
- X is not Grok's main source. x.com holds 1.4% of Grok's top-50 citation share, 12th behind Reddit (16.3%), YouTube (15.1%) and Facebook (13.9%) (Ahrefs, June 2026).
- Grok cites X only for "what are people saying" questions. It cited X in 28.2% of its sources there and 0% on buying or fact-check questions (CueScout, 740 citations).
How many people use Grok?
Grok had 117 million monthly active users of its AI features at 31 March 2026, per SpaceX's S-1. Those sit inside 550 million MAUs across X and Grok, up from 520 million at 31 December 2025. In the US, 8% of adults say they ever use Grok. Usage peaks at 10% among 30 to 49-year-olds.
- 117 million MAUs used Grok's AI features as of 31 March 2026. Source: SpaceX Form S-1, filed 20 May 2026.
- 550 million MAUs across X and Grok at 31 March 2026, up from 520 million at 31 December 2025. Source: SpaceX S-1, as above.
- 1.3 billion supported accounts were active across Grok and X in the twelve months to 31 March 2026, generating 350 million posts a day. Source: SpaceX S-1.
- xAI put its reach at 600 million monthly active users across the X and Grok apps when it closed its Series E in January 2026. Source: xAI, xAI raises $20B Series E, 6 January 2026. The S-1 figure uses a 30-day MAU definition.
- 8% of US adults say they ever use Grok. The rate is 9% for ages 18 to 29, 10% for 30 to 49, 7% for 50 to 64 and 3% for 65 and older. Source: Pew Research Center, survey of 17 to 23 February 2026, published 17 June 2026.
| Chatbot | US adults who ever use it (Pew, Feb 2026) |
|---|---|
| ChatGPT | 44% |
| Gemini | 24% |
| Copilot | 17% |
| Meta AI | 14% |
| Grok | 8% |
| Claude | 6% |
For the other engines, see our Gemini statistics and ChatGPT search statistics.
How many people pay for Grok?
1.9 million people paid for SuperGrok, SuperGrok Heavy or SuperGrok Lite at 31 March 2026. Another 4.4 million paid for X Premium or Premium+, for 6.3 million paid subscribers in total. In October 2026 xAI merged Grok, Grok Bot, Cursor and X Premium into The X Subscription, with five tiers from $0 to $200 a month.
- 6.3 million active paid subscribers: 4.4 million X Premium and Premium+, 1.9 million SuperGrok tiers. Source: SpaceX S-1, data as of 31 March 2026.
- SuperGrok Heavy launched with Grok 4 on 9 July 2025 and gives access to Grok 4 Heavy. Source: xAI, Grok 4.
- The X Subscription launched on 12 October 2026 and combines Grok, Grok Bot, Cursor and X Premium in one plan. Source: xAI, Introducing The X Subscription.
| X Subscription tier | Price | Included usage |
|---|---|---|
| Free | $0 | Limited |
| Plus | $8/month | Base |
| Premium | $30/month | 4x Plus |
| Super | $100/month | 15x Plus |
| Ultra | $200/month | 50x Plus |
Source: xAI, 12 October 2026. Premium bundles SuperGrok, Cursor Pro and X Premium+, which cost $90 a month combined before.
How much revenue does Grok bring in?
SpaceX does not report Grok revenue on its own. Its AI segment revenue rose $581 million, or 22.2%, in 2025. X and Grok subscription revenue accounted for $365 million of that increase. In the first quarter of 2026, AI segment revenue rose another $91 million year on year, which SpaceX attributes to higher X and Grok subscriptions.
- AI segment revenue grew $581 million (22.2%) in 2025. Source: SpaceX S-1.
- X and Grok subscription revenue rose $365 million in 2025; data licensing rose $88 million and X advertising $116 million. Source: SpaceX S-1.
- AI segment revenue rose $91 million in Q1 2026 versus Q1 2025 "from higher X and Grok subscriptions." Source: SpaceX S-1.
- The AI segment is now the SI segment. It covers Grok, Cursor and X, per SpaceX's Q3 2026 10-Q. Source: SpaceX Form 10-Q, filed 22 October 2026.
- SpaceX completed its merger with Cursor on 14 August 2026. Source: SpaceX 10-Q, as above.
When did xAI launch each Grok model?
xAI announced Grok on 3 November 2023 and released Grok 4.7 on 21 September 2026. Between those dates it open-sourced the 314-billion-parameter Grok-1 and launched Grok 3, 4, 4.1, 4.5 and 4.6. The 4.x releases came in quick succession: four versions between July 2025 and September 2026.
| Date | Release | Headline figure from xAI |
|---|---|---|
| 3 Nov 2023 | Grok announced | Real-time knowledge via X |
| 17 Mar 2024 | Grok-1 open weights | 314B-parameter Mixture-of-Experts, Apache 2.0 |
| 19 Feb 2025 | Grok 3 Beta | 10x the compute of prior state of the art; 1402 Elo in Chatbot Arena |
| 9 Jul 2025 | Grok 4 | Trained on Colossus, 200,000 GPUs; Grok 4 Heavy 50.7% on Humanity's Last Exam (text-only) |
| 17 Nov 2025 | Grok 4.1 | Preferred 64.78% of the time over the prior model; 1483 Elo, #1 on LMArena Text |
| 16 Jul 2026 | Grok 4.5 | $2 per million input tokens, $6 per million output |
| 12 Aug 2026 | Grok 4.6 | 61 on the Artificial Analysis Intelligence Index |
| 21 Sep 2026 | Grok 4.7 | 46.3% on CursorBench 4.0 at $2/$6 per million tokens |
Sources: xAI announcements for Grok, Grok-1, Grok 3, Grok 4, Grok 4.1, Grok 4.5, Grok 4.6 and Grok 4.7.
- Grok 4.5 was trained alongside Cursor and reached all users on grok.com, X, iOS and Android on 22 July 2026. Sources: xAI, Introducing Grok 4.5; xAI, Bringing Grok 4.5 to iOS, Android, Web, and X.
- Grok 4.7 is priced the same as Grok 4.6, at $2 per million input tokens and $6 per million output tokens. Source: xAI, Grok 4.7, 21 September 2026.
How much compute and funding sits behind Grok?
xAI's Colossus cluster went from 100,000 NVIDIA Hopper GPUs in December 2024 to more than one million H100 GPU equivalents by the end of 2025. xAI raised a $6 billion Series C in December 2024 and a $20 billion Series E in January 2026. SpaceX then announced its acquisition of xAI on 2 February 2026.
- Colossus became fully operational in 122 days with 100,000 NVIDIA Hopper GPUs. Source: xAI, Series C, 23 December 2024.
- More than one million H100 GPU equivalents across Colossus I and II at the end of 2025. Source: xAI, Series E, 6 January 2026.
- $20 billion Series E, above the $15 billion target. Source: xAI, as above.
- SpaceX acquired xAI, announced 2 February 2026. Source: xAI, xAI joins SpaceX.
- A $200 million ceiling contract with the US Department of Defense, announced with xAI for Government on 14 July 2025. Source: xAI, Announcing xAI for Government.
- Saudi Arabia agreed to deploy Grok nationwide under a framework with HUMAIN, announced 19 November 2025. Source: xAI, Grok goes Global with KSA.
How is Grok built into X?
Grok has been tied to X since its November 2023 launch, when xAI called "real-time knowledge of the world via the X platform" Grok's "fundamental advantage." Grok 4 added X keyword and semantic search tools. Grok 4.5 runs inside X, and Grok Bot connects to X accounts. The X Subscription shares one usage pool across Grok, X and Cursor.
- Grok 4 was trained to search "deep within X" with keyword and semantic search tools, and can view media. Source: xAI, Grok 4, 9 July 2025.
- Grok 4.1 ran a silent rollout on a growing share of production traffic across grok.com, X and the mobile apps from 1 to 14 November 2025. Source: xAI, Grok 4.1.
- Grok Bot launched on 11 August 2026 as always-on agents for SuperGrok and Cursor subscribers. Source: xAI, Introducing Grok Bot.
- Paid Grok Bot users get free X API credits to search posts, read timelines and check mentions, from 29 August 2026. Source: xAI, Grok Bot now works with X.
- The X Subscription's usage pool covers the Grok apps, the Grok tab on X and Cursor. Source: xAI, 12 October 2026.
How X activity shows up in Grok's answers is covered in our X AI mention statistics.
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Which sources does Grok cite?
Reddit tops the domains Grok cites, with 16.3% of mention share among the top 50 cited domains. YouTube has 15.1%, Facebook 13.9%, Instagram 5.9% and Quora 5.5% (Ahrefs Brand Radar, US, June 2026). x.com ranks 12th at 1.4%. Grok also names more sources per answer than ChatGPT, Claude or Perplexity.
| Rank | Domain | Mention share | Pages cited |
|---|---|---|---|
| 1 | reddit.com | 16.3% | 1,847,896 |
| 2 | youtube.com | 15.1% | 1,959,325 |
| 3 | facebook.com | 13.9% | 1,705,362 |
| 4 | instagram.com | 5.9% | 568,231 |
| 5 | quora.com | 5.5% | 307,557 |
| 6 | amazon.com | 5.0% | 397,706 |
| 7 | tiktok.com | 4.8% | 479,282 |
| 8 | en.wikipedia.org | 3.4% | 113,028 |
| 12 | x.com | 1.4% | 142,842 |
Source: Ahrefs, the 50 most-cited websites in Grok, 1 June 2026.
- x.com climbed 15 places in a month to reach 12th in Grok's top 50. Source: Ahrefs, as above.
- Grok names 7.1 sources per answer, second of five models. Gemini names 11.1, ChatGPT 4.1, Claude 3.5 and Perplexity 3.3. Source: Sorank, Grok citation study, 20,002 Grok answers, 8 September 2026.
- Reddit is cited 4.11 times per 100 Grok answers in Sorank's panel, ahead of Facebook (3.81) and Amazon (3.03). The panel is 79% French-language questions. Source: Sorank, as above.
For citation patterns across every engine, see our LLM citation statistics.
How often does Grok cite X posts?
Grok cites X posts only for questions about current opinion. CueScout put 36 questions to Grok's API with live search. On the 12 "what are people saying" questions, 24 of 85 citations (28.2%) were X posts. Across 170 citations on buying and fact-check questions, Grok cited X zero times.
| Question type | Grok citations | From x.com | Share |
|---|---|---|---|
| Buying | 91 | 0 | 0% |
| Fact-check | 79 | 0 | 0% |
| Sentiment ("what are people saying") | 85 | 24 | 28.2% |
Source: CueScout, Does Grok cite X posts?, 20 August 2026.
- The 24 X citations came from 24 different accounts; 23 were individuals posting under their own names and one was a company account. Source: CueScout, as above.
- Grok and Perplexity shared 74 cited domains; Grok and ChatGPT shared 8. Source: CueScout.
- On buying questions, Grok's most-cited domain was zapier.com, followed by reddit.com. Source: CueScout.
CueScout's study ran through the API, not the in-thread @grok replies on X, and covered 36 questions on one day.
Why isn't my brand in Grok's answers?
A brand is usually missing from Grok's buying answers because it is absent from the review roundups, comparison pages and community threads Grok reads. Posting on X is not the fix. In CueScout's test, Grok cited X zero times on buying questions. Reddit, YouTube and Facebook hold 45.3% of Grok's top-50 citation share.
Three checks follow from the data:
- Ask Grok your buying questions directly and note which domains it cites. Its list overlaps far more with Perplexity's than with ChatGPT's.
- Get onto the pages it reads. Roundups, comparison articles and category guides on other domains supplied Grok's buying-question sources.
- Treat X as a sentiment channel. X posts from named individuals surface on opinion questions, not on vendor choices.
How do you track brand visibility in Grok?
To track brand visibility in Grok, run a fixed set of buyer questions on a schedule and log the brands named and the URLs cited. Mentionova does this every week across six engines: ChatGPT, Perplexity, Claude, Gemini, Google AI and Reddit. Grok is not one of those six, so check Grok answers by hand or with a Grok-specific tool.
Where Mentionova helps:
- Answers "why isn't my brand in AI answers?" for the six engines it tracks, showing who was named instead of you and which sources each engine trusted.
- Covers Reddit as one of its six engines. Reddit is the domain with the largest share of Grok's citations.
- Logs mentions, citations, position and sentiment for each engine on every run.
Limits: no Grok coverage today. Starter is $99 a month billed annually ($125 monthly) and covers three engines (ChatGPT, Perplexity and Google). Scale is $320 a month billed annually ($400 monthly) and covers all six. Every paid plan has a free trial, no card. See pricing or compare options in our AI brand monitoring tools guide.
Where does each number come from?
Every figure on this page comes from xAI's own announcements, SpaceX's SEC filings or an original third-party study. All sources were read on 4 November 2026. Usage and subscriber counts are SpaceX's figures as of 31 March 2026, the latest the company has filed, since the Q3 2026 10-Q reports none.
- SpaceX Form S-1 (filed 20 May 2026) and Form 10-Q for the quarter ended 30 September 2026 (filed 22 October 2026), SEC EDGAR.
- xAI announcements at x.ai/news: Grok, Grok-1 open release, Grok 3, Grok 4, Grok 4.1, Grok 4.5, Grok 4.5 on all surfaces, Grok 4.6, Grok 4.7, Grok Bot, Grok Bot and X, The X Subscription, Series C, Series E, xAI for Government, Grok goes Global with KSA, xAI joins SpaceX.
- Pew Research Center: chatbot use chart (17 June 2026), survey of 17 to 23 February 2026.
- Ahrefs: the 50 most-cited websites in Grok (1 June 2026).
- Sorank: Grok citation study (8 September 2026, data to 26 August 2026).
- CueScout: Does Grok cite X posts? (20 August 2026).
- Mentionova plan details: mentionova.com/pricing and the AI visibility tracker page.
What do people ask about Grok?
How many users does Grok have?
SpaceX reported 117 million monthly active users of Grok's AI features at 31 March 2026. They are counted within 550 million MAUs across X and Grok. In the US, 8% of adults say they ever use Grok (Pew, February 2026).
How many people pay for Grok?
1.9 million people paid for SuperGrok, SuperGrok Heavy or SuperGrok Lite at 31 March 2026, per the SpaceX S-1. Another 4.4 million paid for X Premium or Premium+.
Who owns Grok now?
SpaceX. It announced the acquisition of xAI on 2 February 2026, and the company now brands as SpaceXSI. SpaceX reports Grok in its SI segment, formerly the AI segment, alongside X and Cursor.
What is the latest Grok model?
Grok 4.7, released on 21 September 2026. It uses a larger base model than Grok 4.6 and costs $2 per million input tokens and $6 per million output tokens. It scores 46.3% on CursorBench 4.0.
Does Grok use X posts as sources?
Yes, but mostly for questions about current opinion. CueScout found X posts were 28.2% of Grok's citations on "what are people saying" questions and 0% on buying and fact-check questions. Across Ahrefs' US data, x.com holds 1.4% of Grok's top-50 citation share.
What websites does Grok cite most?
Reddit (16.3%), YouTube (15.1%) and Facebook (13.9%) lead Grok's top-50 citation share, followed by Instagram, Quora, Amazon, TikTok and Wikipedia (Ahrefs Brand Radar, US, June 2026).
How much does Grok cost?
The X Subscription, launched 12 October 2026, has five tiers: Free, Plus at $8 a month, Premium at $30, Super at $100 and Ultra at $200. Each includes Grok, Cursor and X features, with usage scaling by tier.
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