Anthropic and OpenAI are locked in a fierce battle for AI dominance, now extending to a race to go public. Anthropic made a confidential filing with U.S. regulators on June 1st, followed by OpenAI a week later. Both companies are vying to be the first to market, believing that an early listing will help shape investor valuation and establish their CEO as a leading voice in AI. The competition is so intense that banks working with both companies have implemented internal barriers to prevent information leaks between deal teams, as executives from both sides are pressing for insight into their rival's plans. OpenAI has reportedly told some investors it was targeting an IPO as early as September, with a potential valuation of around $1 trillion.
Anthropic has recently surpassed OpenAI in valuation, with a current market capitalization of $965 billion compared to OpenAI's $852 billion. Financial analysts, such as Harrison Rolfes from PitchBook, suggest Anthropic has a stronger IPO story, projecting $47 billion in revenue this year, significantly higher than OpenAI's estimated $30 billion. This is notable given that Anthropic has raised less overall capital ($127 billion) than OpenAI ($186 billion) since its founding. While OpenAI dominates the consumer market with ChatGPT and its over 900 million weekly users, most of these users are free, posing a more difficult monetization challenge compared to Anthropic's enterprise focus.
The rivalry is not just financial but also deeply personal. Anthropic CEO Dario Amodei, a former OpenAI researcher, left in 2021 due to disagreements with Sam Altman's focus on profit over responsibility. This has led Anthropic to position itself as a more cautious voice in the industry, advocating for strong AI regulation. The competition has also led to tensions within OpenAI, with Altman reportedly clashing with CFO Sarah Friar over meeting public listing obligations on a compressed timeline. There are concerns among investors about a potential AI price war, as OpenAI is reportedly considering significant cuts to its token prices to compete with Anthropic's growing momentum in enterprise AI, particularly with its Claude Code.