ChatGPT’s parent is heading to market carrying enormous expectations – and some serious financial baggage.

The ChatGPT maker’s move follows rival Anthropic’s filing and comes days before SpaceX’s expected $1 trillion-plus debut on the stock market.

The ChatGPT creator has privately submitted a draft prospectus for an IPO expected to value the company at more than $US1 trillion ($1.4 trillion).

OpenAI did not disclose the size or terms of the offering, and said a timeline has not yet been determined. "It may be a while because there are things we want to do that are…