OpenAI and Anthropic File for IPOs Amid AI Price War

The world's leading AI laboratories, OpenAI and Anthropic, are racing to go public, both having confidentially filed S-1 registration statements with the U.S. Securities and Exchange Commission in June 2026. While Anthropic filed on June 1, OpenAI followed on June 8. These moves come as the companies seek to fund massive infrastructure needs—with OpenAI planning to spend $600 billion by 2030—and tap into public markets where combined valuations could approach $4 trillion.

Simultaneously, the two firms are locked in a fierce commercial rivalry and a pricing war. OpenAI is considering drastic token price cuts to regain market share after Anthropic's valuation reached $965 billion, surpassing OpenAI's March valuation of $852 billion. This shift follows reports of corporate clients rationing AI spend due to high costs and a trend toward cost-optimized deployment using cheaper open-source models.

Despite their competition, both companies have issued warnings about the dangers of recursive self-improvement, which OpenAI predicts will arrive by March 2028. They have jointly called for international coordination or a multilateral body to manage catastrophic risks and potentially slow the development of frontier models. Critics, however, have dismissed these safety warnings as pre-IPO marketing designed to influence regulation and attract investors.