An OpenAI IPO at $1-trillion valuation? Sam Altman said to begin work for 2026 listing

OpenAI Inc. has started laying the groundwork for an IPO that could peg the ChatGPT creator’s valuation at up to $1 trillion, setting the stage for what could be one of the biggest initial public offerings of all time.

Sam Altman, co-founder and chief executive officer, is considering filing for an OpenAI IPO as soon as the second half of 2026, Reuters reported citing three people aware of the matter. In preliminary discussions, OpenAI has looked at raising $60 billion at the low end and likely more.