# X.AI

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/x-ai-2

- Industry: Software
- Headquarters: Burlingame, US
- Website: www.x.ai/
- Total disclosed funding: $32.9B
- Latest round: Series E (Dec 19, 2025)
- Investors on record: 27

## About

X.AI Corp., based in the US, develops advanced AI platforms to enhance applications across various sectors. Its flagship product, Grok, serves as a versatile AI assistant designed for diverse clients including developers and government entities.X.AI Corp. creates AI technology solutions, focusing on intelligent assistance services. Founded in 2023 in Burlingame, US. In February 2026, X.AI Corp., a portfolio company of Beyond Alpha Ventures, BAMCO, Cisco Investments, StepStone, Abstract Ventures, SpaceX, TPG, 1789 Capital, MGX, Qatar Investment Authority, BlackRock, NVIDIA Corporation, AMD, Oman Investment Authority, Morgan Stanley Investment Management, Lightspeed Venture Partners, Think 1st Principles, Ark Invest, Parkway, VR Ventures, Redstone, Vy Capital, Andreessen Horowitz, Fidelity Investments, Kingdom Holding Company, Valor Equity Partners and Sequoia Capital, merged into SpaceX, a portfolio company of Beyond Alpha Ventures, BAMCO, Cisco Investments, StepStone, Abstract Ventures, SpaceX, TPG, 1789 Capital, MGX, Qatar Investment Authority, BlackRock, NVIDIA Corporation, AMD, Oman Investment Authority, Morgan Stanley Investment Management, Lightspeed Venture Partners, Think 1st Principles, Ark Invest, Parkway, VR Ventures, Redstone, Vy Capital, Andreessen Horowitz, Fidelity Investments, Kingdom Holding Company, Valor Equity Partners, Sequoia Capital for USD 250 billion, in an all stock deal. The deal values X.AI Corp. at USD 250 billion and the combined company at USD 1.25 trillion. X.AI Corp. was established by Elon Musk and Christian Szegedy. X.AI offers a suite of advanced AI products centered around its flagship product, Grok, which serves as a versatile AI assistant capable of enhancing applications across various platforms, including web, iOS, and Android. Grok leverages its enhanced speed, precision, and multilingual capabilities to cater to a diverse clientele, which includes individual developers, businesses, and government entities. Notably, Grok 4, launched on July 9, 2025, is the most sophisticated model in the Grok line, featuring native tool use and real-time search integrations, specifically designed to improve reasoning and decision-making in real-time scenarios. The company also introduced the SuperGrok subscription service, which expands access to Grok Heavy and higher rate limits, and has recently launched Grok for Government, targeting U.S. government customers with tailored AI solutions. These products are marketed not only in the United States but also have potential applications in international markets, reflecting the company's commitment to serving a global customer base.X.AI has structured its revenue model around subscription-based services, primarily through its SuperGrok offerings. Customers pay for access to different tiers of Grok, including SuperGrok Heavy, which provides higher usage limits and advanced capabilities such as Grok 4 Heavy. The transaction model is designed to facilitate direct engagement with end users, allowing both individual developers and larger organizations, including government agencies, to integrate Grok's AI solutions into their operations seamlessly. By offering varying subscription plans, the company targets a broad spectrum of clients, from small developers to large institutions, ensuring a steady revenue stream from both B2B and direct-to-consumer channels. The pricing structure supports multiple tiers, encouraging users to upgrade as their needs for AI capabilities evolve. X.AI Corp. The February 2026 merger enables the combined company to set up orbital data centers and continue scaling large-scale artificial intelligence development.

## Funding rounds

- Series E, Dec 19, 2025, $16.6B — Valor Equity Partners, Qatar Investment Authority, StepStone, Fidelity Investments, NVIDIA Corporation, Tesla, Inc., Cisco Investments, BAMCO, Humain Ventures, MGX
- Series D, Jun 18, 2025, $5.3B — SpaceX, Anti Fund
- Series C, Nov 22, 2024, $6B — Lightspeed Venture Partners, Morgan Stanley Investment Management, Hong Shan, Valor Equity Partners, Qatar Investment Authority, Kingdom Holding Company, Fidelity Investments, Oman Investment Authority, Andreessen Horowitz, AMD, NVIDIA Corporation, BlackRock, Vy Capital, Qatar Investment Authority, MGX
- Series B, May 10, 2024, $5B — Hong Shan, Valor Equity Partners, Kingdom Holding Company, Fidelity Investments, Andreessen Horowitz, Vy Capital, Redstone, VR Ventures, Parkway, Ark Invest, Think 1st Principles
- Seed, date not disclosed — Abstract Ventures

## Investors

- Abstract Ventures (https://capitalatlas.ai/funds/abstract-ventures) — Seed
- Hong Shan — Series B, Series C
- Valor Equity Partners (https://capitalatlas.ai/funds/valor-equity-partners) — Series B, Series C, Series E
- Kingdom Holding Company (https://capitalatlas.ai/funds/kingdom-holding-company) — Series B, Series C
- Fidelity Investments (https://capitalatlas.ai/funds/fidelity-investments) — Series B, Series C, Series E
- Andreessen Horowitz (https://capitalatlas.ai/funds/andreessen-horowitz) — Series B, Series C
- Vy Capital (https://capitalatlas.ai/funds/vy-capital) — Series B, Series C
- Redstone (https://capitalatlas.ai/funds/redstone) — Series B
- VR Ventures (https://capitalatlas.ai/funds/vr-ventures) — Series B
- Parkway (https://capitalatlas.ai/funds/parkway) — Series B
- Ark Invest (https://capitalatlas.ai/funds/ark-invest) — Series B
- Think 1st Principles — Series B
- Lightspeed Venture Partners (https://capitalatlas.ai/funds/lightspeed-venture-partners) — Series C
- Morgan Stanley Investment Management — Series C
- Qatar Investment Authority (https://capitalatlas.ai/funds/qatar-investment-authority) — Series C, Series E
- Oman Investment Authority — Series C
- AMD — Series C
- NVIDIA Corporation — Series C, Series E
- BlackRock (https://capitalatlas.ai/funds/blackrock) — Series C
- MGX (https://capitalatlas.ai/funds/mgx) — Series C, Series E
- SpaceX — Series D
- Anti Fund (https://capitalatlas.ai/funds/anti-fund) — Series D
- StepStone (https://capitalatlas.ai/funds/stepstone) — Series E
- Tesla, Inc. — Series E
- Cisco Investments (https://capitalatlas.ai/funds/cisco-investments) — Series E
- BAMCO — Series E
- Humain Ventures (https://capitalatlas.ai/funds/humain-ventures) — Series E