Anthropic Co-Founders Pledge No Ads in Claude Ahead of IPO
Seven co-founders said in a letter filed with the IPO registration that ad revenue goals would pressure Claude to chase user engagement.
Seven Anthropic co-founders pledged in a letter attached to the company's IPO registration filing that the AI chatbot Claude will not carry advertising, according to The Information. The letter was disclosed the same day the registration statement was made public.
The founders argued that advertising revenue goals would create pressure to boost user engagement, and said Claude will not be steered by such pressure.
The filing also shows Anthropic's marketing and advertising spending rose by $170 million in 2025 compared with the prior year, and by $273 million in the first half of 2026.
OpenAI, by contrast, started as a consumer chatbot and shows ads to free ChatGPT users, and expects advertising to become a major revenue source in the coming years.
Quick answers
Will Claude show ads?
No. Seven Anthropic co-founders pledged in a letter filed with the company's IPO registration that Claude will not carry advertising.
Why did Anthropic's founders rule out ads in Claude?
They said advertising revenue goals would create pressure to boost user engagement, and that Claude will not be steered by such pressure.