Microsoft executives have disclosed that the company's total investment in OpenAI will exceed $100 billion by June 2026. This revelation came during the final day of the discovery phase in Musk's lawsuit against OpenAI. The investment includes committed funding, infrastructure, and compute hosting costs, significantly surpassing the previously acknowledged $13 billion in cash investment. Microsoft's CTO, Kevin Scott, highlighted the deployment of tens of thousands of GPUs during the initial construction of their first supercomputer. Following the presentation of evidence by Microsoft and OpenAI, Musk's legal team opted not to proceed with the rebuttal phase, concluding the three-week discovery period. The court is set to proceed with closing arguments on Thursday.