OpenAI secures $40 billion investment, reaching $300 billion valuation March 31, 2025 by admin Tweet OpenAI secures $ 40 billion in largest private funding round. The investment, led by SoftBank Group, values OpenAI at $ 300 billion to advance AI research. Read more… Neowin Related Posts:OpenAI is now valued at $157 billion as it finishes…OpenAI is reportedly trying to raise another $6.5…Report: Microsoft to further invest in OpenAI at…OpenAI gets $500 million by SoftBank as part of…OpenAI, Oracle and SoftBank to invest $500 billion…