Elon Musk’s Fortune: $780 Billion Thanks to xAI

Elon Musk’s fortune has just reached a new historic milestone, hitting approximately $780 billion, primarily due to xAI’s recent massive fundraising round. The artificial intelligence company raised $20 billion, propelling its valuation from 113 to $250 billion in just a few months.

This 2.2x increase in xAI’s valuation directly added $62 billion to Musk’s personal fortune, as he holds approximately 49% of the company’s capital. Beyond the staggering figures, it is primarily xAI’s colossal technological infrastructure that justifies this record valuation.

xAI Doubles Its Valuation in a Few Months

The fundraising round of $20 billion conducted by xAI is one of the largest operations ever recorded in the artificial intelligence sector. This massive capital injection brings the company’s valuation to $250 billion, up from $113 billion at the time of its merger with X (formerly Twitter).

This 2.2x increase in just a few months demonstrates investors’ exceptional confidence in the AI strategy developed by Musk.

Among the strategic investors who participated in this round are iconic figures from the tech and financial worlds. Saudi Prince Alwaleed bin Talal now holds 1.6% of the capital, while Jack Dorsey, founder of Twitter/X, and Larry Ellison, Oracle’s CEO, each own 0.8%.

This diversity of profiles – tech, finance, institutional investors – sends a strong signal to the market about xAI’s potential in the global artificial intelligence race.

A Historic Fortune Gain of $62 Billion

With approximately 49% ownership of xAI, Elon Musk saw his personal fortune increase by $62 billion following this revaluation. The calculation is simple: the $137 billion increase in xAI’s valuation, multiplied by his ownership stake, generates this colossal gain.

His total fortune now stands at approximately $780 billion according to estimates, representing a spectacular progression over recent months. This growth is a continuation of the impressive track record of his achievements with Tesla and his other ventures.

The gap with the world’s second-richest man, Google’s Larry Page, now exceeds $500 billion. Never in modern economic history has such a chasm been observed between the world’s top two fortunes.

To put this into perspective, Musk’s fortune today is equivalent to the GDP of several European countries and represents the successive crossing of symbolic thresholds: $500, $600, then $700 billion within a few years.

SpaceX and Tesla Remain the Main Pillars

Despite xAI’s meteoric rise, the distribution of Musk’s assets remains dominated by his historical companies. SpaceX accounts for approximately $336 billion with his 42% stake, while Tesla is worth approximately $307 billion thanks to his 12% ownership.

xAI, with its 49% stake valued at approximately $122 billion, thus becomes the third pillar of his fortune, but remains behind the two giants, Tesla and SpaceX.

This strategic diversification across space, electric vehicles, and artificial intelligence illustrates his global vision for Tesla and its ventures. Furthermore, Tesla continues to benefit from value creation for Tesla shareholders thanks to technological synergies between the different entities.

Musk’s three pillars of fortune do not operate in silos: AI advancements at xAI directly fuel the development of Tesla’s FSD (Full Self-Driving), while SpaceX’s space expertise inspires innovations in production and materials at Tesla.

Colossus 2, the Supercomputer Justifying the Valuation

One Million H100 GPU Equivalents

The combined infrastructure of Colossus 1 and Colossus 2 represents over 1 million Nvidia H100 GPU equivalents, making xAI the owner of the world’s largest artificial intelligence training infrastructure.

This computing power gives xAI a significant technological advantage over its direct competitors such as OpenAI, Anthropic, or Google DeepMind. In the AI race, having such computing capacity becomes a decisive competitive advantage.

Unprecedented Electrical Power

Colossus 2 represents the world’s first 1-gigawatt (GW) training cluster. To visualize this power, it’s equivalent to the total electricity consumption of a city like San Francisco.

The ambition doesn’t stop there: xAI plans to expand this capacity to 1.5 GW by April 2026. This expansion requires the construction of dedicated energy infrastructure, demonstrating that the investment is not just in software components, but in the entire physical chain of AI production.

Adherence to the expansion schedule despite the colossal scale of technical challenges demonstrates the xAI team’s execution capability, a key factor in investor confidence.

This colossal infrastructure explains why investors value xAI at $250 billion: building such computing power represents a material advantage that is extremely difficult for competitors to catch up with. In the AI race, raw computing power becomes the equivalent of 20th-century oil pipelines.

Other Winners of This Valuation

xAI’s historical investors also realized substantial gains thanks to this revaluation. Prince Alwaleed, with his 1.6% stake, saw his participation increase by approximately $2.2 billion.

Jack Dorsey and Larry Ellison, each holding 0.8%, gained approximately $1.1 billion each. These multi-billion dollar gains create a virtuous cycle that attracts new potential investors for future fundraising rounds.

This collective validation of xAI’s strategy strengthens the company’s position in the global artificial intelligence ecosystem and confirms that Musk’s vision resonates with the most astute investors in global tech.

xAI’s ascent fundamentally transforms the composition of Musk’s fortune, making artificial intelligence a pillar as important as SpaceX and Tesla. The Colossus infrastructure positions xAI as a key player in generative AI, according to updated Forbes data on the economic impact of artificial intelligence.

This dynamic could have direct repercussions on the Tesla ecosystem: AI advancements developed at xAI will inevitably power Full Self-Driving and Optimus’s capabilities, thus creating beneficial technological synergies for all Tesla owners. The AI race has only just begun, and Musk appears to have gained a considerable head start.