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Grok nears 100 million monthly active users as xAI’s chatbot keeps climbing

Grok nears 100 million monthly active users as xAI’s chatbot keeps climbing

Photo: Steve A Johnson / Pexels

Elon Musk's AI chatbot is closing in on a nine-figure audience, though the exact count depends on how you define a user

by Diego Almada Lopez

2 min read

In AI

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Grok, the AI chatbot built by Elon Musk’s xAI, is nearing 100 million monthly active users, according to a post on X.

How many people actually use Grok

SpaceX’s June 2026 S-1 filing disclosed roughly 117 million monthly active users engaging with Grok’s AI features as of March 31, 2026. The same filing put that figure at about 89 million at the end of 2025.

Further back, Grok sat at around 64 million monthly users in September 2025. In other words, the user base has nearly doubled under the broader feature-level definition in a relatively short window.

Later estimates put total monthly active users at 118.4 million in October 2026, up 0.7% from September.

The access-point breakdown for October 2026 shows how scattered Grok’s audience is:

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  • X platform: 54.6 million
  • Mobile app: 34.6 million
  • grok.com: 25.4 million
  • Tesla vehicles: 3.8 million

Similarweb estimates the Grok app on Android and iOS had 93.4 million monthly active users and 12.7 million downloads in October 2026, with both figures up more than 3% from September.

Engagement and money

Average session length for Grok users comes in at 7 minutes 34 seconds.

The audience skews heavily male, at 74.1% of users.

On the revenue side, Grok has approximately 2.4 million paid SuperGrok subscribers.

A crowded field

Grok holds a 3.4% share of the US AI chatbot market, trailing ChatGPT, Gemini and Claude.

The Tesla integration adds another distribution channel. At 3.8 million monthly users, it is the smallest of the four surfaces.

What this means

A 0.7% monthly gain in October 2026 is a far cry from the jump between late 2025 and March 2026.

With roughly 2.4 million paying subscribers, conversion is the metric to watch.

X still accounts for the largest single block of users, at 54.6 million.

The SpaceX S-1 disclosure also matters for anyone tracking Musk’s corporate empire. Grok usage figures appearing in a securities filing means these numbers now carry regulatory weight.

Disclosure: This article was edited by Diego Almada Lopez. For more information on how we create and review content, see our Editorial Policy.

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