[7/21 12:00] US and China to hold AI talks in September (Reuters exclusive) / Nvidia discloses 9.3% stake in Nebius

AI News Flash for July 21, 2026 at 12:00 UTC. Topics: 1. US and China to hold AI talks in September (Reuters exclusive) https://www.reuters.com/world/china/us-china-hold-ai-talks-september-sources-say-2026-07-21/ 2. Nvidia discloses 9.3% stake in Nebius https://qz.com/nvidia-nebius-stake-ai-cloud-072126 3. Pentagon using startup Twenty's AI to automate cyberwarfare (Forbes) https://www.forbes.com/sites/thomasbrewster/2026/07/21/the-pentagon-is-using-this-12-billion-startups-ai-to-automate-cyberwarfare/ 4. Medtronic unveils real-time AI platform for the operating room https://www.prnewswire.com/news-releases/a-new-era-for-surgery-with-real-time-ai-medtronic-to-unveil-touch-surgery-aide-the-next-generation-compute-platform-for-the-operating-room-at-society-of-robotic-surgery-2026-302830108.html 5. $40,000-a-year AI school with no teachers opening in Oklahoma https://oklahomawatch.org/2026/07/21/a-40000-per-year-ai-school-with-no-teachers-is-opening-in-oklahoma-this-august/