Anthropic IPO Prospectus Reveals $8 Billion Operating Loss

Anthropic posted a roughly $42 billion net loss in 2025 as soaring computing costs and a massive accounting charge overwhelmed rapid revenue growth ahead of the artificial intelligence company’s planned initial public offering.

The Claude maker generated about $4.6 billion in revenue during 2025, up roughly twelvefold from the prior year, while its operating loss widened to $8.06 billion, according to its confidential IPO prospectus reviewed by Reuters. Most of the gap between Anthropic’s operating and net losses came from a roughly $34 billion non-cash accounting charge tied largely to financing instruments that may eventually convert into company shares.

The results offered one of the clearest looks yet at the enormous costs behind the artificial intelligence boom as Anthropic prepares to ask public investors to value the company at more than $2 trillion.

Anthropic spent $7.33 billion on compute and infrastructure in 2025, nearly 60% of its $12.65 billion in operating expenses and about 1.6 times the company’s total annual revenue, according to Capital Brief. Compute and infrastructure expenses climbed about 190% from the previous year.

The company also disclosed roughly $518 billion in future cloud, computing and infrastructure obligations, underscoring how much capital Anthropic expects to require as it expands its models and computing capacity, according to Reuters. Anthropic held about $20.3 billion in cash, cash equivalents and short-term investments at the end of 2025.

The $42 billion GAAP net loss does not mean Anthropic burned through that amount of cash during the year. Roughly $34 billion came from the non-cash revaluation of financing liabilities, while the company’s $8.06 billion operating loss more closely reflects the gap between revenue and the costs of running the business. Anthropic’s net loss nevertheless widened dramatically from roughly $8.31 billion in 2024.

AI developers were racing to secure the chips, data centers and electricity needed to train and operate increasingly powerful models. Anthropic recently entered an $11.6 billion, seven-year cloud agreement with Akamai, with the relationship carrying the potential to expand to roughly $20 billion, according to a Thursday company filing.

The company’s revenue growth has accelerated alongside that spending. Anthropic generated roughly $386 million in revenue during 2024 before jumping to approximately $4.59 billion in 2025, while the company has continued expanding rapidly in 2026.

The company’s two largest direct customers each generated approximately 12% of 2025 revenue, meaning roughly one-quarter of its sales came from just two customers, according to disclosures reported from the prospectus.

The company’s planned public offering could become a major test of whether investors remain willing to assign enormous valuations to rapidly growing AI companies despite the extraordinary cost of building and operating the infrastructure behind their models. Anthropic’s prospective valuation would be more than double the roughly $965 billion private valuation reported in May, Reuters reported.