Founded in 2023 by Elon Musk in San Francisco, xAI was established after Musk departed from OpenAI's board and grew increasingly vocal about the direction of mainstream AI development. xAI's flagship product, Grok, is an AI assistant integrated directly into X (formerly Twitter), giving it access to real-time information unlike most competitors. Grok 3, launched in 2025, showed dramatic improvements in reasoning and coding benchmarks. xAI raised $6 billion in 2024 and a further $10 billion in 2025 at a valuation exceeding $200 billion, making it one of the most valuable AI startups in history. The company is also developing its own AI supercomputer cluster called Colossus in Memphis, Tennessee.
Active Founders
Elon Musk
Founder / CEO
Elon Musk is the founder and CEO of xAI. One of the most consequential entrepreneurs in history, Musk co-founded PayPal, Tesla, and SpaceX before founding xAI. He was also an early co-founder and donor at OpenAI before departing from its board in 2018. Elon founded xAI after expressing deep concerns about the safety and direction of other AI labs, positioning xAI as a more truth-seeking and less politically constrained alternative. He leverages his ownership of X to give Grok unique real-time data advantages.
xAI
