Anthropic Risk Factors: Specific Risks vs Standard Ones

The Anthropic risk factors that are specific to the company fall into four areas. They are computing power, staying at the frontier, model misuse or misbehavior, and a structure that gives public shareholders no control. The S-1 also discloses a $1.5 billion copyright settlement and a legal dispute with the Department of War. Much of the rest of the risk section is the standard language of a first-time filing.

Where are the risk factors in the S-1?

They start on page 26 of the prospectus, after a summary that lists the main risks in 18 short bullets. Most IPO filings contain a long list of standard risks. The job is separating those from the ones only Anthropic faces.

Which Anthropic risk factors are specific to the company?

The summary bullets that only a frontier AI developer would write.

• Developing the most advanced models. The first risk factor reads: "Our success depends in large part on our ability to continue to develop the most advanced and capable AI models, and any failure to do so could adversely affect our business."
• Compute. Two headings deal with securing computing power and with projecting how much is needed: "If our actual compute requirements differ materially from our projections, we may fail to secure sufficient compute to meet our needs or we may be committed to excess compute that remains underutilized."
• Inputs to compute. "Constraints on the critical inputs supporting compute could limit our ability to secure adequate compute."
• Misuse and model behavior. The filing warns that its models may act in "unintended, misaligned, or autonomous ways."
• Partner concentration. Reliance on a small number of cloud providers and suppliers that also hold stakes in the company.
• Governance. The five-class share structure, voting power held by the founders' LLC and the Long-Term Benefit Trust, and the duties that come with being a public benefit corporation. Our article on who controls Anthropic explains how that works.

Which risks are standard for any IPO?

The ones that appear in nearly every first-time filing. They include a limited operating history, an early stage of revenue growth, competition, dependence on key people, and regulation. Then come the trading risks of any new stock, such as price swings and future sales by existing holders. They still count, but they don't set Anthropic apart.

What does the S-1 say about compute?

That it's the central operating risk, and it cuts both ways. Too little capacity limits growth, and commitments that outrun demand leave Anthropic paying for capacity it doesn't use. Both appear in the filing's own headings.

Anthropic trains and serves its models across AWS Trainium, Google TPUs, NVIDIA GPUs, and AMD GPUs, and its commitments run years ahead. The summary section leaves the total committed spend blank. Readings of the full filing differ on the figure, so we don't quote one here. Compute and infrastructure was the largest operating expense in the first half of 2026. It cost $8,945 million out of total operating expenses of $16,979 million.

What legal and government issues are disclosed?

Two stand out. The 2025 accounts include a $1,500 million charge for the Bartz copyright settlement. And Anthropic is in a dispute with the Department of War, the Department of Defense's name under a 2025 executive order. The department designated the company a supply chain risk in early March 2026.

Anthropic sued on March 9, 2026 in the US District Court for the Northern District of California. It also filed a separate challenge in the US Court of Appeals for the D.C. Circuit. It argued the designation was arbitrary. In its view, the designation was retaliation for its refusal to allow certain military and surveillance uses of its models. The district court ruled for Anthropic on August 27, 2026. The D.C. Circuit denied its petition 2 to 1 on September 25. Press reports say Anthropic asked the full D.C. Circuit for a rehearing on October 13, and the request is pending.

How concentrated are Anthropic's customers?

Moderately. The S-1 lists revenue concentration among a limited number of customers as a risk. It says the top five customers were about 25% of revenue for the nine months to September 30, 2026. No single customer exceeded 10% over that period. Separately, its financial statements show one customer at 11% of revenue for the first half of 2026. Both are true: the nine-month share is lower because the base grew so fast in the third quarter.

Which risks are lasting, and which could fade?

The compute risk could ease or worsen with each new contract and each quarter of demand. The governance risk is different in kind. It describes something already fixed: public holders won't control the company. The filing says voting power stays concentrated for the foreseeable future. So it reads as a lasting feature of the stock rather than a risk that might pass. Our Anthropic bear case covers the valuation and competition arguments. And our guide to what's in the S-1 shows where the risk section fits in the filing.

Key takeaways

• Four risks are specific to Anthropic: compute supply, staying at the frontier, model misuse or misbehavior, and a structure that gives public holders no control.
• Compute is the biggest operating cost ($8.9 billion in the first half of 2026) and the filing warns about both too little and too much of it.
• The S-1 discloses a $1.5 billion copyright settlement and a pending court fight with the Department of War over a supply chain risk designation.

Sources

• Anthropic, PBC, Form S-1, SEC EDGAR, October 26, 2026
• sec-api, Anthropic (ANT) S-1 IPO filing analysis, October 27, 2026
• Dealroom summary of The Information, Anthropic's S-1 takeaways, October 26, 2026
• JURIST, Anthropic sues US Defense Department over supply chain risk designation, March 2026