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Grok

xAI
closed / Overall score: 4.7(leading)

xAI's consumer chat product, a standalone app at grok.com with mobile clients and integration into X, distinguished by real-time access to X content. It offers a reasoning mode, real-time search and multimodal input.

Scored as the chat product rather than the Grok model SKU, which is a separate entry under base_pretrained.

Openness

1 high confidence
1.0
license
proprietary(SaaS/embedded in X)
source
closed
self-host
none
model
xAI Grok(closed weights)

A proprietary chat interface over a closed-weight model: the closed counterpart to the open chat interfaces in this category.

Adoption

5 low confidence
5.0

xAI does not publish a monthly-user figure for the app. The only figure comes from a third-party statistics compilation that attributes it to a post on X.

  • https://seoprofy.com/blog/grok-ai-statistics/ recorded 2026-09-29

    Compiled usage statistics page stating "In January 2026, the Grok’s app had around 60 million monthly active users" (attributed on the page to Tesla Owners on X).

  • https://x.ai/news/grok-4-1 recorded 2026-09-29

    Release post stating "Grok 4.1 is now available to all users on grok.com" and the mobile apps, in a reasoning and non-reasoning mode.

  • https://x.com/xai/status/1990530499752980638 recorded 2026-08-13

    xAI official post: Grok 4.1 frontier model, free on grok.com, X and mobile apps (confirms the consumer Grok assistant surface)

Capability

4 high confidence
4.0

Grok pairs a frontier-class model with a distinctive real-time X-search edge, reasoning mode, image generation and multimodal input, giving it high feature breadth. It remains locked to xAI's own models with no provider choice, so it does not define the category frontier.

Verified 2026-09-29, except some scores, still awaiting re-confirmation