xAI (Grok) — Net Worth and Career Earnings
xAI, Elon Musk's artificial intelligence company and developer of the Grok chatbot, was acquired by SpaceX in February 2026 in an all-stock transaction that valued xAI at $250 billion — the largest private corporate merger in history. The combined SpaceX-xAI entity is valued at approximately $1.25 trillion, with a SpaceX IPO on the Nasdaq targeting a June 2026 debut. Grok generated $350 million in standalone revenue in 2025 and is projected to reach approximately $2 billion in 2026.
Founded by Elon Musk in March 2023 with a team of 11 AI researchers from DeepMind, OpenAI and other institutions, xAI built its flagship Grok chatbot with a distinctive personality and real-time access to X's data stream — a competitive advantage no other AI company possesses. Grok reached 64 million monthly active users by early 2026, growing from essentially zero in November 2023 and capturing 17.8% of the US chatbot market in January 2026 — up from 1.9% just 12 months earlier, a ninefold increase. Grok 4 scored 91.7% on the AIME 2025 mathematics benchmark.
xAI built Colossus, the world's largest AI training supercomputer, in Memphis, Tennessee in 122 days — housing 555,000 NVIDIA GPUs purchased for approximately $18 billion with plans to expand to 1 million GPUs. The company signed a $200 million Department of Defense contract to deploy Grok across the Pentagon. All 11 original co-founders had departed by March 2026 following the SpaceX acquisition and restructuring, leaving Musk as the sole remaining founder. In April 2026, xAI announced a deal with Anysphere (Cursor) to potentially acquire the coding tool for $60 billion.