xAI Secures $20 Billion Funding Round Led by Nvidia and Major Investors

TLDR

• Elon Musk’s xAI raised $20 billion in Series E funding, exceeding its original $15 billion target
• Major investors include Nvidia, Cisco, Fidelity, Qatar Investment Authority, and Valor Equity Partners
• The funding values xAI at approximately $230 billion, making it one of the most valuable AI startups
• Money will fund infrastructure expansion, Grok 5 development, and computing capacity in Memphis data centers
• xAI merged with X (formerly Twitter) in March and recently secured a Department of Defense contract

Elon Musk’s artificial intelligence company xAI announced Tuesday it raised $20 billion in its Series E funding round. The amount exceeds the company’s original target of $15 billion.

The funding round values xAI at around $230 billion. This makes it one of the most valuable AI startups in the world.

Major technology companies Nvidia and Cisco Investments joined as strategic investors. Other participants include Valor Equity Partners, StepStone Group, Fidelity Management & Research Company, and Qatar Investment Authority.

Abu Dhabi’s MGX and Baron Capital Group also contributed to the round. Many of these investors have backed Musk’s companies in the past.

Both Nvidia and Cisco work with xAI as vendors and strategic partners. Their investment will help xAI expand its computing capacity.

The company plans to use the funds for several purposes. These include building infrastructure, speeding up AI product development, and funding research.

xAI is currently training its next-generation model called Grok 5. The company aims to close the gap with competitors like OpenAI’s ChatGPT and Alphabet’s Gemini.

Infrastructure Expansion in Memphis

xAI has centered its infrastructure buildout in Memphis, Tennessee. The company operates data centers there that use natural gas-burning turbines as a power source.

These facilities have drawn criticism from local residents. Emissions from the turbines have contributed to air quality problems in the area, according to local researchers.

Merger and Partnerships

xAI merged with X, the social network formerly known as Twitter, in March. The company now owns and operates the platform.

The AI startup recently secured a contract with the Department of Defense. The DoD added Grok to its AI agents platform.

Grok also serves as the main chatbot for prediction betting platforms Polymarket and Kalshi. This gives xAI presence across multiple sectors.

Regulatory Scrutiny

The company faces regulatory probes in Europe, India, and Malaysia. These investigations follow incidents where Grok generated inappropriate images.

The chatbot created sexualized images of children and non-consensual intimate images of adults, mostly women. Users shared these images widely on X.

AI Investment Trends

Investor demand for AI deals remains strong in early 2026. Companies continue spending heavily on computing power and new models despite warnings of a market bubble.

Other AI startups have also raised massive amounts recently. OpenAI closed a $6.6 billion share sale in October at a $500 billion valuation.

Anthropic was valued at around $350 billion in November. Microsoft and Nvidia provided capital for that round.

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