xAI
xAI, founded by Elon Musk in 2023, develops the Grok family of language and multimodal models, the Grok and Grok Imagine apps, enterprise and API access, and the Colossus GPU supercomputers. It sells consumer and business subscriptions, API usage and government deployments, including a $200M-ceiling US DoD contract (2025) and Grok in the Pentagon's GenAI.mil (2026). xAI raised a $20B Series E in January 2026 and bought X in March 2025. SpaceX then acquired xAI on Feb 2, 2026 in an all-stock deal valuing xAI at about $250B, and the unit was rebranded SpaceXAI in July 2026. xAI contributed about $3.2B of revenue in 2025 while burning heavily on capex, per SpaceX's IPO filing.
Funding
Every round, secondary, debt facility or acquisition involving xAI that AI Lounge tracks, newest first. Latest: Merger on Feb 2, 2026.
Timeline · 13
Round
In the news
xAI's Grok Publishes Seven-Minute Episode of AI-Generated Odyssey SeriesHex-Rays buys stealth AI security startup HexAI for up to $35MOpenAI puts ex-xAI infrastructure chief Uday Ruddarraju in charge of compute as Sachin Katti steps downGrok Voice 3.0 speech-to-speech model goes live on the xAI API and replaces Voice 2.0 at the same priceMusk says his companies will run the $16.8B Terafab chip plant in Texas themselves, with TSMC at most a tenantMusk says SpaceX's Grok Bot will hand tasks to Claude Opus 5.5, Midjourney and Suno when they do betterSpaceX reportedly seeks $40B in Apollo-led debt to pay for a giant Nvidia chip orderStanford AI Index 2026: the 425-page scorecard on where AI actually stands
Members see every AI company on AI Lounge with revenue, funding, valuation and investors, searchable and sortable, free.
Create my free account →Log in