AI News today - July 28th - Why China is giving away its best AI models...

Today's top AI news stories — 2026-07-28: 1. Why China is giving away its best AI models Silicon Valley has spent much of the past week on red alert, digesting the arrival of Moonshot AI's Kimi K3, a Chinese AI model that can allegedly beat some of the best systems built by US companies a 2. Nvidia and Microsoft launch AI security alliance Nvidia announced the Open Secure AI Alliance on Monday, partnering with Microsoft, SpaceX, IBM and others to build open-source AI security tools. The initiative directly addresses mounting safety conc 3. Microsoft launches first AI cybersecurity model Microsoft unveiled its first dedicated AI security model and new agentic cybersecurity system this week, claiming superior performance and lower costs than competing platforms. The launch strengthens 4. Google AI Overviews now default in 43% searches New data shows Google's AI-generated search answers now appear in 43% of all searches, demonstrating how rapidly AI-generated information is becoming the primary way people discover answers online. Th 5. Meta AI chatbot arrives in Threads DMs Meta rolled out its Meta AI chatbot to Threads' direct messages on Monday, giving users integrated AI assistance within the social platform. This expansion deepens Meta's AI integration across its soc Full briefing: https://ainews.q-sci.org/blog/post_2026-07-28.html