SpaceX’s AI Solutions Sales Grew $6.7B, Half of AWS’s Gain

SpaceX’s SI solutions and infrastructure revenue rose by $6.7 billion in a year, to $7,022 million in the quarter to 30 September 2026. That increase was about half of AWS’s $13.0 billion, by our arithmetic from the companies’ third-quarter filings. SI is SpaceX’s Super Intelligence segment, which it previously reported as Artificial Intelligence.

By our arithmetic, SpaceX’s line was 6.0% of the combined quarterly revenue of AWS, Azure, Google Cloud and that line, up from 0.5% a year earlier. The lines are defined differently, so the shares compare reported revenue lines, not like-for-like cloud businesses.

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The Four Lines, From the Filings

SpaceX’s third-quarter release puts SI solutions and infrastructure revenues at $7,022 million, against $359 million in the same quarter of 2025. It says SpaceX “Added $6.7 billion of incremental SI solutions and infrastructure revenue year-over-year, driven by cloud services agreements, the acquisition of Cursor, and our growing SI models and software applications, including Grok Bot”.

Amazon’s release puts AWS segment net sales at $45,984 million, against $33,006 million, and says “AWS segment sales increased 39% year-over-year to $46.0 billion”. Microsoft’s 10-Q, in its table of revenue by product and service, puts Azure at $33,165 million against $22,384 million. Alphabet’s release puts Google Cloud at $30,709 million against $15,157 million.

What Was Posted on X

@apoorv03 posted: ‘A new spaceship spotted in the clouds!’

@ttunguz asks who will be the first $10 trillion company, and answers: the one that first builds a $1 trillion AI compute engine before AI erodes the legacy cash cow paying for the GPUs. The framing is his; he links a longer article.

Our Arithmetic

The four lines added $46.0 billion of quarterly revenue in a year, from $70.9 billion to $116.9 billion. Google Cloud added $15.6 billion, AWS $13.0 billion, Azure $10.8 billion and SpaceX’s line $6.7 billion. SpaceX’s increase was about 51% of AWS’s and about 62% of Azure’s, and about 14.5% of the four lines’ combined increase.

Their shares of the combined total were about 39.3% for AWS, 28.4% for Azure, 26.3% for Google Cloud and 6.0% for SpaceX’s line, against 46.5%, 31.6%, 21.4% and 0.5% a year earlier. SpaceX’s line was 15.3% of AWS’s quarterly revenue, against 1.1% a year earlier.

The Cursor Question

SpaceX completed its acquisition of Cursor on 14 August 2026. Its release says that from the closing date through 30 September, “Cursor contributed $608 million of revenue to the Company’s consolidated results of operations”. SpaceX does not say how much of that sits in the SI solutions and infrastructure line. If all of it did, the line excluding Cursor would be about $6.4 billion, or about 5.5% of the four lines’ combined total, by our arithmetic.

Where the Framing Came From

The comparison was put forward on X by @apoorv03, who posted “A new spaceship spotted in the clouds!” with a chart of the four providers’ shares of their combined run rate. The chart’s source line says SpaceX is “SI Solutions & Infrastructure excl. Cursor”; it puts SpaceX at 5% in the latest quarter. Our figures use the filings directly and include Cursor unless stated.

Our earlier pieces covered Google Cloud adding $15.6 billion in a year, SpaceX’s third-quarter results and the single AI customer behind 34.5% of SpaceX’s revenue. They also covered the TPU systems behind Google Cloud’s product revenue, Amazon’s borrowing as capex outran operating cash and the US share of the world’s AI chip compute.

The Structural Read

As we read SpaceX’s release, the growth came from three sources it names together: cloud services agreements, the Cursor acquisition and its own models and applications, including Grok Bot.

As we read the four filings, the comparison is between reported revenue lines, not like-for-like clouds: AWS and Google Cloud include non-AI services, and Azure comes from a product table.

By our arithmetic, Google Cloud still added the most revenue of the four in a year, $15.6 billion, and AWS remains the largest at $46.0 billion a quarter.

Three Implications

FOR CLOUD BUYERS By our arithmetic, SpaceX’s SI solutions and infrastructure line was $7.0 billion in the quarter, 15.3% of AWS’s quarterly revenue.

FOR INVESTORS SpaceX’s release says Cursor contributed $608 million of revenue from 14 August to 30 September, and it does not split that figure by line.

FOR RIVALS By our arithmetic, SpaceX’s line supplied about 14.5% of the four lines’ combined $46.0 billion year-on-year increase.

The Business Engineer Lens

This story maps onto the Business Engineer framework The AI Capex Map.

The framework puts it this way: “The May 2026 Map of AI argued that the seven-layer AI stack is now governed from the bottom — energy, silicon, compute capacity.”

The framework is the owner’s general argument about the AI stack, published in May 2026; it does not discuss SpaceX’s third-quarter results.

What Is Not Established

The four lines are not the same business. SpaceX’s line includes cloud services agreements, its own AI models and software applications such as Grok Bot, and Cursor from mid-August. AWS and Google Cloud include services beyond AI. Microsoft reports Azure in a product table, not as a segment. None of the four companies reports a market share, and the shares here cover only these four lines, not the whole cloud market.

The Bottom Line

By our arithmetic from the third-quarter filings, SpaceX’s SI solutions and infrastructure revenue grew by $6.7 billion in a year, about half as much as AWS added. On the same arithmetic, it went from 0.5% to 6.0% of the four lines’ combined revenue, with Cursor included.