xAI

xAI (SpaceXAI)

xAI is the AI company reportedly founded by Elon Musk on 2023-03-09 (Palo Alto, per Wikipedia) that builds the Grok models. It has gone through two mergers: it absorbed X (Twitter) in 2025, then was itself acquired by SpaceX in 2026 and renamed SpaceXAI.

Leadership

Standalone CEO not identified in the sources consulted. Michael Nicolls (formerly SpaceX’s Starlink vice president) became president on 2026-04-10; by March 2026 about half of the co-founders had reportedly left, the last being Ross Nordeen (all Wikipedia, secondary).

Products

• Grok: model family and chatbot (current generation per the vault note: Grok 4.x), see also grok-bot.
• Grokipedia (AI encyclopedia); Colossus data-centre cluster in Memphis (operational 2024-12 and expanded toward about 2 GW by 2025-12, per Wikipedia only).
• Coding: Cursor joined after the 2026 acquisition below.

Timeline

Deal terms, valuations and dates below are from Wikipedia and press (secondary) and were not checked against SpaceX or xAI filings.

• 2025-03-28: xAI acquired X Corp. in an all-stock deal (xAI valued $80B,X$33B).
• 2025-07: $10Braised($5B debt, $5Bequity).\ast \ast 2026-01:\ast \ast$20B Series E with Nvidia as strategic investor (see Nvidia).
• 2026-02-02: SpaceX acquired xAI in an all-stock deal at $250B(SpaceXvaluedat$1T, combined about $1.25T). X Corp. ceased to exist as a standalone company.
• 2026-05: Musk reportedly said xAI would no longer exist as a separate company; Grok and X became SpaceX’s AI division.
• 2026-06-12: SpaceX IPO on Nasdaq at $135pershare,about$1.77T valuation, roughly $75B raised (press reports; unverified).
• 2026-06-16: SpaceX exercised its option to buy Cursor’s parent Anysphere for $60B in stock; closed 2026-08-14.
• 2026-07-06: xAI renamed SpaceXAI.
• Controversies: Grok antisemitism incident (2025-07) and deepfake-image problems from 2025-12 (Wikipedia).

Tesla is a separate Musk company; it integrated Grok into vehicles from 2025-07.

Open items

• Details of the merger terms and IPO come from Wikipedia and press, not SpaceX filings.
• Whether “xAI” remains a legal entity name is unverified.

Sources (fetched 2026-10-05)

• https://en.wikipedia.org/wiki/XAI_(company), https://en.wikipedia.org/wiki/X_Corp. (secondary)
• https://techcrunch.com/2026/06/16/spacex-to-acquire-cursor-for-60b-in-stock-days-after-blockbuster-ipo/
• https://satnews.com/2026/03/25/spacex-accelerates-record-breaking-ipo-following-trillion-dollar-xai-merger/