Tencent releases Hy4 with image understanding and computer use, but holds back the weights for now

Tencent has released Hy4, the finished version of a language model it previewed about two months ago, The Decoder reports. For the first time, a Tencent model of this kind can understand images and operate software on its own. Tencent says it optimized Hy4 for coding, finance and office work. The company says Hy4 was trained on significantly more data than its predecessor and, for the first time, ranks among the strongest open-weight models. Tencent says it has already used Hy4 to improve training pipelines for other models. However, the weights will only be released at a date that has not yet been set. Until then, Hy4 is available only through Tencent Cloud, OpenRouter, and Tencent apps such as the Yuanbao chatbot. In independent tests, Hy4 ranks second among Chinese models, but it falls well behind top models such as Claude Opus 5.5 on hard math and coding tasks. The release adds another large Chinese model to a market that has recently seen several trillion-parameter releases. Developers who want to run Hy4 on their own hardware will have to wait for the promised weights.