06:30 AM EDT, 04/01/2025 (MT Newswires) -- Microsoft ( MSFT )-backed (MSFT) OpenAI said Monday it would raise $40 billion in new funding at a $300 billion post-money valuation.

Separately, Japan's SoftBank Group said it plans to make follow-on investments of up to $40 billion in the parent of artificial intelligence chatbot ChatGPT. This includes up to $30 billion if OpenAI's for-profit unit completes a recapitalization by the end of 2025, or in certain circumstances, early 2026. SoftBank said it would invest $10 billion if the funding conditions are not met by the stated deadline.

SoftBank may syndicate out up to $10 billion of the potential $40 billion investment in OpenAI to co-investors, it said.