Anthropic’s ad bill is soaring, according to IPO filing
Digiday ·
Anthropic’s IPO filing shows an ad-free AI company with a fast-growing ad bill.
Claude won’t be carrying ads when Anthropic goes public. Plenty of them will be carrying Claude.
The paperwork ( S-1 document ) the AI company filed with U.S. regulators before its stock market listing shows its advertising spend rising from $33 million in 2024 to $147 million last year. That’s more than Duolingo, an app that has built its brand on marketing, spent on sales and marketing combined in 2025, at $125.7 million. Anthropic’s spending kept rising this year, with marketing and advertising costs up another $273 million more on marketing and advertising than in the same six months a year earlier.
That still leaves the ad budget small in Anthropic’s overall costs. Sales, marketing and partnership costs reached $3.17 billion in the first half of 2026 but most of that went to cloud companies that resell Claude, whose fees accounted for $2.7 billion of the increase.
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