xAI

Founded 2023

Elon Musk's AI company building the Grok family of models with deep X/Twitter integration, real time social data access, and massive compute infrastructure.

Overview

xAI is the artificial intelligence company founded by Elon Musk in 2023 with the stated mission to "understand the true nature of the universe." The company builds the Grok family of large language models and operates Colossus, one of the world's largest AI supercomputers with over 200,000 GPUs scaling toward 1 million. The founding team included researchers from DeepMind, OpenAI, Google Brain, and the University of Toronto. xAI is closely tied to X (formerly Twitter) and Tesla, with Grok serving as the primary AI assistant on the X platform. This integration gives Grok unique real time access to posts, trends, and public sentiment that no other AI chatbot can match. The company's product lineup includes Grok (the AI chatbot with real time X data access, DeepSearch, reasoning, and image generation), Aurora and Grok Imagine (image and short video generation integrated into Grok), and the xAI API (a developer platform for building with Grok models). xAI has raised over $40 billion in total funding at a valuation exceeding $200 billion. xAI operates from San Francisco with major operations in Memphis, Tennessee, where the Colossus supercomputer is housed. The close relationship with Musk's other companies is both a strategic advantage and a source of debate, as critics have raised concerns about political bias and fewer content guardrails compared to competitors.

What makes them different

Compared to OpenAI and Anthropic, xAI's biggest differentiator is Grok's deep integration with X/Twitter, giving it real time access to posts, trends, and public sentiment that no other AI chatbot can match. This makes Grok uniquely capable for social listening, trend analysis, and real time information retrieval. OpenAI and Anthropic offer more polished and versatile general purpose assistants, but neither has access to a live social media firehose. Compared to Google's Gemini, both companies have massive infrastructure investments, but xAI's compute is concentrated specifically on training and serving Grok models rather than spread across a broad product portfolio. Google has broader ecosystem integration through Search, Workspace, and Android, while xAI's integration is focused entirely on the X platform. Compared to DeepSeek and open source alternatives, xAI takes a largely proprietary approach. Grok models are not open source and are only accessible through X subscriptions, the SuperGrok standalone product, or the xAI API. Unique strengths include being the only AI with native real time X/Twitter data access for social listening and trend analysis, the Aurora image generation system with fewer content restrictions than competitors, the Colossus supercomputer infrastructure providing massive compute capacity, and the SuperGrok Heavy tier offering access to Grok 4 Heavy for professional and research use cases.

Their tools

Subscription plans

Free (on X)

Free

Basic Grok access on X with limited prompts and image generation.

  • Approximately 10 prompts every 2 hours
  • Approximately 10 images every 2 hours
  • Basic Grok access
  • Real time X data access

X Premium

$8/month

Expanded Grok access bundled with X Premium social media features.

  • Expanded Grok access
  • Additional X platform features
  • Higher usage limits than free tier

X Premium+

$40/month

Full Grok 3 access with DeepSearch, higher usage limits, and image generation, bundled with all X Premium features.

  • Full Grok 3 access
  • DeepSearch
  • Higher usage limits
  • Image generation
  • All X Premium features
Best Value

SuperGrok

$30/month

Standalone premium Grok access without requiring an X Premium subscription. Also available at $300 per year.

  • Standalone Grok access (no X Premium required)
  • 128K token memory
  • Priority access to new features
  • DeepSearch
  • Image generation
Get SuperGrok

SuperGrok Heavy

$300/month

Access to Grok 4 Heavy, the most powerful reasoning model, with the highest rate limits and earliest access to new features.

  • Grok 4 Heavy access
  • 256K+ token memory
  • Highest rate limits
  • Early access to new features
  • Priority support

Links

Last updated: 2026-02-20