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Anthropic IPO 招股书曝光：估值或超 2 万亿美元，2025 年净亏损 420 亿美元

Anthropic's IPO prospectus shows AI vision, surging costs

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Anthropic IPO 招股书显示，其估值目标超过 2 万亿美元，2025 年净亏损 420 亿美元，营收增长 12 倍至近 46 亿美元。公司未来几年计划在云、算力和基础设施上投入 5180 亿美元，去年算力与基础设施支出达 73.3 亿美元，为 2024 年的三倍。近四分之一营收来自两个客户，上市或推迟至美国 11 月中期选举之后，OpenAI 也已于 6 月秘密递交 IPO 申请。

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EXCLUSIVE

Anthropic's IPO prospectus shows sweeping AI vision, surging costs

By Echo Wang

September 28, 2026 11:17 PM UTC Updated 5 mins ago

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Image 3: An Anthopic logo during the Dreamforce 2026 technology summit in San Francisco, California

People visit an Anthropic booth at Moscone Center during the Dreamforce 2026 technology summit in San Francisco, California, US, September 17, 2026. REUTERS/Carlos Barria Purchase Licensing Rights, opens new tab

  • Summary
  • Companies
  • Anthropic IPO could value the company at more than $2 trillion
  • Anthropic lost $42 billion in 2025
  • AI lab spent $7.33 billion on compute and infrastructure last year
  • Operating loss widened to $8.06 billion in 2025 from $2.98 billion in 2024
  • Execs, industry analysts have expressed concerns over harms of AI tech

Sept 28 (Reuters) - Anthropic is making a massive bet that AI will ​transform the global economy more profoundly than industrialization, electricity and the internet, according to its IPO prospectus seen by Reuters.

But the cost to get there will be staggering. ‌Anthropic reported a net loss of $42 billion in 2025, and plans to spend $518 billion on cloud, computing and infrastructure obligations in coming years, according to the prospectus.

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The prospectus details how the company has grown sharply in the last year — while also posting wider losses. Revenue grew 12-fold in 2025 to nearly $4.6 billion, even as the company lost more than $8 billion on an operating basis, excluding writedowns of various liabilities mostly tied to previous fundraising, according to the documents, reported here ​for the first time.

The public sale, which could value it at more than $2 trillion, would capitalize on the rapid rise of the AI startup lab that only came into existence ​five years ago, and establish it as a benchmark for how Wall Street values AI's leading companies, including rival OpenAI.

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The plans come as Anthropic confronts evidence ⁠from its own research that increasingly autonomous AI models can behave in unexpected and potentially harmful ways, including sabotaging code, assisting fraud and manipulating information in controlled tests.

These reports have broken into the ​wider public sphere, igniting fears over how companies can keep the increasingly powerful systems under control as they race to deploy them commercially.

Anthropic CEO Dario Amodei has called for the global AI community to slow ​the pace of releasing new capabilities to address those concerns. Still, Anthropic rolled out its new Opus 5.5 model last week to counter OpenAI’s momentum since its launch of GPT-6 Astra, ahead of its own expected IPO.

The AI lab spent $7.33 billion on compute and infrastructure last year, a threefold surge from 2024, accounting for more than half of its $12.65 billion in total operating expenses.

Anthropic's public market debut is likely to be pushed to after the November US midterm elections, ​Reuters previously reported, citing sources. The sale would bring public investors into an AI race that has been until now underwritten by venture capital firms, sovereign wealth funds and Big Tech companies.

Anthropic declined to ​comment.

A $2 TRILLION VALUATION EXPECTED

Anthropic's expected valuation target is more than double its own estimated valuation of $965 billion in May.

The near-$42 billion net loss included a roughly $34 billion accounting charge that reflected an increase in the estimated value of ‌financing that could ⁠eventually turn into Anthropic shares, rather than money the company spent running its business.

Anthropic said nearly a quarter of its revenue came from two customers last year, and as part of its risk factors, warned that many of its largest clients were not locked into long-term contracts and could cut or stop spending.

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Anthropic had cash, cash equivalents and short-term investments totaling $20.28 billion as of December 31, the prospectus shows.

Anthropic's debut would follow SpaceX's (SPCX.O), opens new tabrecent blockbuster IPO that valued Elon Musk's company at $1.77 trillion.

That company's shares surged 19% in their June 12 debut to $160, but currently trade at around $147 -- above where the IPO sold at $135 apiece.

That performance ​could give investors pause as they assess the ​still-lofty valuations for high-growth companies. AI and chip ⁠stocks have sold off recently, and Anthropic's sale will further test whether enthusiasm for the AI trade can withstand greater scrutiny, given its ambitious growth projections.

Still, the listing stands to cap one of the strongest years for US IPOs since 2021, despite elevated interest rates, economic uncertainty and valuation concerns.

THE TRILLION-DOLLAR ​AI RACE

Anthropic's biggest challenger remains OpenAI, as the two firms fiercely compete for business customers, talent and influence in Washington. OpenAI confidentially filed for an IPO ​in June. The ChatGPT maker ⁠is expected to list by early 2027, according to media reports.

Anthropic was founded by researchers who left its rival after disagreements over governance and AI safety. It released its first large language model in March 2023, competing directly with OpenAI.

It also competes with SpaceX's xAI, Alphabet's (GOOGL.O), opens new tab Google and Meta (META.O), opens new tab to build out AI infrastructure.

Analysts expect the first company to go public to establish valuation benchmarks for the AI industry and attract investors who have ⁠waited years ​for a pure-play way to bet on the technology.

Amazon (AMZN.O), opens new tab and Google were two of Anthropic's early key strategic partners. Both companies ​have invested billions of dollars into the startup while simultaneously supplying cloud infrastructure needed to train and deploy Claude models.

Anthropic and CEO Amodei have clashed with the White House over the use of its tools, which led to the Pentagon temporarily blacklisting Anthropic, ​a move blocked by a US judge in August.

Adds details of Anthropic's history in paragraph 20, fixes typo in paragraph 2

Reporting by Echo Wang in New York and Manya Saini in Bengaluru; Writing by Sayantani Ghosh; Editing by Sriraj Kalluvila, Colin Barr, Kenneth Li and David Gaffen

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Echo Wang
Thomson Reuters

Echo Wang is a correspondent at Reuters covering U.S. equity capital markets, and the intersection of Chinese business in the U.S, breaking news from U.S. crackdown on TikTok and Grindr, to restrictions Chinese companies face in listing in New York. She was the Reuters' Reporter of the Year in 2020.

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