OpenAI is reportedly finalising a $40 billion funding round led by SoftBank, potentially pushing its valuation to $300 billion. Other major investors, including Magnetar Capital and Coatue Management, are also in talks to join.

SoftBank is expected to invest $30 billion across two tranches, starting with $7.5 billion, while an additional $10 billion will be pooled from various backers.

Magnetar alone may contribute $1 billion to the deal.

This comes just months after OpenAI raised $6.6 billion in October 2024. The latest round cements its place as a dominant force in AI, drawing unprecedented investor interest as demand for its tools soars.