0330 GMT - Tencent's latest AI model has further stepped up its task completion capability, Citi analysts say in a research note. Tencent released its Hy4 preview on Friday, more than doubling the previous generation's parameters, although still smaller than those by peers such as Alibaba's Qwen3.8-Max and Moonshot's Kimi K3. Despite being a smaller model, Hy4 preview's benchmark rankings are comparable with or exceed peers on certain AI evaluation benchmarks such as long-horizon task execution, they note. Once the Hy4 official version releases in coming months, Tencent could further improve Hy4 within the Tencent ecosystem as well as external enterprises' work productivity environments, they add. Shares are 1.3% lower at HK$449.00.