Moonshot launches Kimi K3 (open 2.8T), NVIDIA announces Open Secure AI Alliance, Perplexity beefs up its enterprise offering
July 27, 2026: Moonshot AI releases Kimi K3, an open 2.8-trillion-parameter model; NVIDIA brings together an industry alliance on AI system security with more than 30 partners; and Perplexity publishes a dense enterprise changelog.