OpenAI is close to finalizing one of the largest private funding rounds ever seen in tech, with backers poised to commit more than $100 billion, potentially pushing the company’s valuation above $850 billion. Reports from Bloomberg and multiple market sources say the first phase of the mega-round is nearing completion, making this one of the most ambitious capital raises in history.

The funding — led by major strategic players including Amazon, SoftBank, Nvidia, and Microsoft — reflects deep institutional confidence in OpenAI’s expansion plans across AI infrastructure and global services. Under current projections, OpenAI’s pre-money valuation is roughly $730 billion, meaning the inflow of new capital could lift its total market value past $850 billion once the round closes.