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Grok

xAI · #17 most active of 26 in Writing

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Grok pairs xAI's in-house models with live access to the X firehose, sold standalone and bundled into X Premium tiers.

Current version

Grok 4

Entry cost

from $30/mo

Changes / 30d

0

Capabilities

  • Real-time X search
  • Think and Big Brain modes
  • Voice mode
  • Image generation
  • API access

Pricing

  • Free

    Free

  • SuperGrok

    $30

  • SuperGrok Heavy

    $300

Entry price over time

Not enough pricing history yet — we start charting from the second observation.

Geek mode

Models under the hood

  • Grok 4

    xAI

    disclosed

  • Grok 4 Fast

    xAI

    disclosed

Context window

2M

Public API

yes

Multi-model routing

no

Stack signals

  • Colossus cluster
  • Nvidia H100/H200
  • X firehose

Shared model stack

Other tracked products running on the same foundation models — a quick read on how much of the catalog moves when one of these models changes.

  • Grok 4xAI · 1 product
  • Grok 4 FastxAI · 1 product

green disclosed · amber inferred · grey unknown

Reported scale

Reference data. Each figure is whatever the source actually said — weekly users, downloads, revenue run-rate — with its own definition and date. These are not comparable between tools and are never used to rank anything.

No public usage figure on record for this product.

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Change history

  • version

    Grok 4 released with Heavy tier and 2M context

    Grok 3Grok 4

    source