Anthropic swings to third quarter operating loss as compute costs surge ahead of IPO

Anthropic reported a significant third-quarter operating loss driven by high compute costs and accounting charges ahead of its upcoming IPO. Despite revenue growth, the company faces pressure from expensive short-term infrastructure commitments.
Why it matters
As a major AI developer, Anthropic's financial health and infrastructure spending provide insight into the sustainability of the current AI boom.
The Claude developer posted third-quarter revenue of $17 billion, but growth slowed sharply to 47% from 144% in the second quarter, according to an amended IPO filing published Monday .
Anthropic attributed the operating loss primarily to $5 billion in computing capacity obtained through costlier short-term commitments rather than cheaper multiyear agreements, as well as $2 billion in noncash charges tied to its donation-matching program.
Excluding certain expenses, including stock-based compensation and charitable contributions, Anthropic also reported adjusted operating profit of $2.5 billion, up from $2.2 billion in the previous quarter. Its adjusted operating margin, however, fell to 15% from 19%.
Price reductions and contractual discounts also reduced third-quarter revenue by approximately $600 million, partially offsetting growth from higher usage.
The company’s $23.3 billion net loss was largely driven by a $21.9 billion accounting charge from revaluing convertible notes and related instruments, primarily driven by increases in its enterprise valuation.
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