xAI

AI company founded by Elon Musk, building Grok to understand the true nature of the universe.

LLM / AGI Research
Foundation Models
Elon Musk· Founder & CEO
Total Raised
$6.0B
Last Valuation
$50.0B
Founded
2023
Headquarters
Palo Alto, CA
Employees
500+
Revenue Run Rate
$500M+ ARR
Overview

xAI is Elon Musk's artificial intelligence venture, founded with the stated mission of understanding the true nature of the universe. The company developed Grok, a large language model integrated into the X social media platform (formerly Twitter), giving it a unique distribution channel with hundreds of millions of users. xAI has built one of the largest GPU training clusters in the world at its Memphis, Tennessee facility, nicknamed Colossus, featuring over 100,000 NVIDIA H100 GPUs. This massive compute infrastructure enables the company to train frontier models at a pace that rivals OpenAI and Google DeepMind. Grok differentiates itself through real-time access to X platform data, a more irreverent personality, and fewer content restrictions compared to competing models. With $6 billion raised in its Series C, xAI is investing heavily in next-generation model development, multimodal capabilities, and enterprise offerings.

Funding History
Series C
Nov 15, 2025

Grok expansion with massive compute buildout.

Sequoia Capital (Lead)Andreessen HorowitzNVIDIA
$6.0B
Val: $50.0B
Frequently Asked Questions
How much has xAI raised in total?
xAI has raised a total of $6.0B across 1 funding round.
Who are xAI's investors?
xAI's investors include Sequoia Capital, Andreessen Horowitz, NVIDIA.
What does xAI do?
xAI is Elon Musk's artificial intelligence venture, founded with the stated mission of understanding the true nature of the universe. The company developed Grok, a large language model integrated into the X social media platform (formerly Twitter), giving it a unique distribution channel with hundreds of millions of users. xAI has built one of the largest GPU training clusters in the world at its Memphis, Tennessee facility, nicknamed Colossus, featuring over 100,000 NVIDIA H100 GPUs. This massive compute infrastructure enables the company to train frontier models at a pace that rivals OpenAI and Google DeepMind. Grok differentiates itself through real-time access to X platform data, a more irreverent personality, and fewer content restrictions compared to competing models. With $6 billion raised in its Series C, xAI is investing heavily in next-generation model development, multimodal capabilities, and enterprise offerings.
When was xAI founded?
xAI was founded in 2023 and is headquartered in Palo Alto, CA.
Where is xAI headquartered?
xAI is headquartered in Palo Alto, CA.