OpenAI has filed its confidential S-1, the first official step on its path to a blockbuster IPO. The ChatGPT-maker announced the filing on Monday.

OpenAI said it has not decided exactly when the IPO would take place.

ChatGPT maker OpenAI says it has filed paperwork for an IPO but may remain private while it pursues other priorities.

ChatGPT maker is expected to be valued at more than $850bn