Accounting Charges Drove Anthropic’s $80.7B Half-Year Loss

Anthropic recorded a net loss of $80.7 billion in the six months ending 30 June 2026, and $72 billion of it resulted from accounting charges tied to changes in the value of convertible notes and other instruments the company issued to raise funding, The Wall Street Journal reported on 20 October 2026. The figures come from a draft initial public offering prospectus viewed by the Journal. Anthropic declined to comment.

Anthropic generated around $16.3 billion in revenue in the first half, up from $1.1 billion in the year-earlier period, and spent nearly $9 billion on computing capacity and infrastructure, according to the draft prospectus as reported by the Journal. Below are the figures, the compute commitments and the risk factors the Journal reported, and how they connect to this month’s IPO coverage.

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What the Draft Prospectus Shows

The Journal said the net loss of more than $80 billion “largely reflects an accounting adjustment related to financing agreements.” That compares with a net loss of $13 billion in the same period a year earlier, and with the $42 billion Anthropic lost in all of 2025, the Journal reported.

On costs, the Journal reported that Anthropic spent nearly $9 billion on computing capacity and infrastructure in the first half, up from $2.3 billion in the same six months of 2025. That is more than the $7.3 billion it spent in all of 2025, a year in which it generated $4.6 billion in revenue, according to the Journal.

The Compute Bill

The company is on the hook to pay around $450 billion in cloud computing agreements over the next seven to ten years, and the bulk of these deals are noncancelable, the Journal reported. Anthropic plans to spend $111 billion on Google cloud computing contracts, $110 billion with Amazon Web Services and $31 billion on Microsoft, “regardless of actual usage,” according to the Journal.

The Journal said the firm also agreed to spend up to $86 billion renting Nvidia chips from Nscale and Lambda through 2033 and 2034, respectively. Including its more than $160 billion obligation to lease Google chips in a deal with Broadcom, Anthropic’s future infrastructure costs top $600 billion, the Journal reported, and further deals under negotiation could raise its commitments by as much as $150 billion.

The company has signaled that it could potentially spend $750 billion in the coming years on obtaining more computing capacity, including deals it is still negotiating, the Journal reported. Anthropic said it has sought access to more capacity than “those partners were willing to provide” and that they increasingly see it as a competitor, according to the prospectus as reported by the Journal.

Customers and Risk Factors

Around one-fifth of the $16.3 billion in first-half revenue came from just two customers, the Journal reported. Anthropic expects a “significant portion” of its revenue will come from a “limited number of customers for the foreseeable future,” according to the draft prospectus.

The Journal said roughly a third of the draft prospectus is dedicated to risk factors. Anthropic warned that “harm that could result from a catastrophic AI-related incident” might be so large that it would be unable to obtain insurance to cover the potential damages, the Journal reported.

Anthropic also cited growing political resistance to data centers, warning that it has “become more organized and coordinated across jurisdictions,” according to the Journal. It said some operators of facilities run on its behalf have “limited operating history,” and their facilities may be less reliable than those of large cloud providers.

Pay and Pledges

Dario and Daniela Amodei each earned a base salary of about $655,000 in 2025, the Journal reported. Dario’s stock and option awards brought his total compensation to about $18 million, and Daniela’s to about $16.5 million, according to the Journal. Each of Anthropic’s co-founders pledged to dedicate 80% of their personal Anthropic equity to philanthropy, according to the prospectus as the Journal reported it.

Connecting the Coverage

This builds on our reporting from this month. On 4 October we covered a wire account of Reuters’ reporting on the confidential prospectus, which put at least $518 billion in computing commitments over a decade, with about 80% non-cancellable or payable regardless of usage. On 15 October we covered investors weighing a $1.5 trillion IPO value, after Anthropic told prospective IPO investors that third-quarter revenue jumped 45% to $16.8 billion from the previous quarter, Reuters reported.

On 18 October we covered Anthropic’s 5% equity pledge to a Public Benefit Fund, subject to stockholder approval. On 19 October we covered a second $45 billion Nscale deal under discussion, which Bloomberg said was not final, and OpenAI’s $30 billion round at over $1.4 trillion, which Reuters said OpenAI was racing to secure before Anthropic’s expected market debut in mid-November.

The Structural Read

As we read it, the gap between revenue and compute spending is the number IPO investors can test: around $16.3 billion against nearly $9 billion in the first half, as the Journal reported, against $4.6 billion and $7.3 billion for all of 2025.

As we read it, the commitments are where the risk sits: around $450 billion in cloud agreements the Journal says are mostly noncancelable, more than $600 billion including the Broadcom chip lease, and up to $150 billion more under negotiation.

As we read it, the risk factors the Journal reported point the same way: one-fifth of revenue from two customers, cloud partners that increasingly see Anthropic as a competitor, and organized resistance to data centers.

Three Implications

$72B OF THE LOSS The Journal reported that $72 billion of the $80.7 billion first-half net loss resulted from accounting charges tied to convertible notes and other instruments.

$16.3B REVENUE Anthropic generated around $16.3 billion in revenue in the first half, up from $1.1 billion a year earlier, according to the Journal.

OVER $600B OF COMMITMENTS Including the Broadcom chip lease, Anthropic’s future infrastructure costs top $600 billion, the Journal reported.

The Business Engineer Lens

This story maps onto the Business Engineer framework The State of The Inference Economy.

The framework frames the economics this way: “Training was a cost center: episodic, concentrated among roughly twenty frontier model labs, amortizable across trillions of tokens. Inference is a revenue engine: continuous, distributed across millions of applications and agents, incurring marginal cost with every query.”

As we read it, the draft prospectus figures the Journal reported are a test of that frame for one company: compute spending that rose with revenue in the first half, and long-dated commitments that run years beyond it. The framework was published in March 2026 and does not discuss Anthropic’s prospectus.

What Is Not Established

We have read the Journal’s article, not the draft prospectus, which is not public on the SEC’s EDGAR system as far as we could check. A draft can change before a final filing. The roughly $450 billion in cloud agreements and the more than $600 billion total the Journal reported may not be counted the same way as the $518 billion in Reuters’ earlier account; we have not seen how either total is built. The Journal did not name the two customers.

The Bottom Line

The Wall Street Journal reported that Anthropic’s draft prospectus shows about $16.3 billion in first-half revenue, nearly $9 billion of compute spending and an $80.7 billion net loss, $72 billion of which came from accounting charges tied to its financing instruments. As we read it, the operating figures and the compute commitments the Journal listed are what IPO investors are being asked to weigh, more than the headline loss.