Tencent Holdings Ltd. released a foundation model it says outperforms rivals Z.AI Co. and Moonshot AI in internal tests, claiming a place among China’s top artificial intelligence players.The Hy4 Preview model runs on 770 billion parameters and features a 1 million-token context window, the company said in a statement, marking a big improvement in size and data scale from its predecessor. The larger the context window, the more an AI model remembers and can respond to a user’s queries and comman...