Group 1 - Grok 4, the latest flagship model from xAI, was officially released on July 10, with a subscription fee of $30 per month for users to upgrade their experience [1] - Kuaishou's Keling AI launched the Ketu 2.1 model on July 10, significantly enhancing instruction adherence, image aesthetics, and video generation capabilities, with over 344 million images and 168 million videos generated to date [2] - OpenAI is preparing to release an open-weight language model, which will allow enterprises and governments to deploy the model independently, marking a shift from its usual closed-weight model [3] Group 2 - Perplexity AI, supported by NVIDIA, launched a new AI-powered browser called Comet, aiming to challenge Google's dominance in the browser market, where Chrome holds a 68% share as of June [4] - Google's personal AI assistant, Gemini, is now available on Wear OS smartwatches, including devices from Pixel, Samsung, OPPO, OnePlus, and Xiaomi, allowing users to interact with it easily [5]