Anthropic pledges advertising-free Claude ahead of planned Nasdaq listing

The seven founders of artificial intelligence company Anthropic stated in a letter within their initial public offering prospectus on October 26, 2026, that they are committed to keeping their Claude model free of advertising. The Information reported that the letter explained how Claude's sole incentive is to provide helpful responses, warning that pressure mounts once advertising enters company revenue targets. [1][6][7]

Coinspeaker reported that the regulatory filing places Anthropic on the Nasdaq stock exchange under the ticker symbol ANT. The planned initial public offering is scheduled for November 2026. [2][6]

Anthropic was founded in January 2021 by former OpenAI members, including siblings Daniela Amodei and Dario Amodei, who serve as president and chief executive officer, respectively. The San Francisco-based public benefit corporation previously achieved a valuation of $965 billion during its Series H funding round in May 2026. [6]

The public offering comes as Anthropic develops software tools such as its Claude chatbot alongside agentic coding tools. Its flagship Claude series operates as a family of proprietary large language models. [6][7]