Softbank has fully funded $40 billion investment in OpenAI, sources tell CNBC

Core Insights - Softbank has completed its $40 billion investment commitment to OpenAI, with a final investment of $22 billion to $22.5 billion sent last week [1] - The total investment includes a previous $10 billion syndicated and $8 billion directly invested in OpenAI [1] - The investment values OpenAI at a pre-money valuation of $260 billion [1] Funding Details - The funding will be disbursed over a 12 to 24 month period [2] - Part of the investment is intended to support OpenAI's artificial intelligence infrastructure through the Stargate joint venture with Oracle and Softbank [2]