0818 GMT - ByteDance dominates China's AI short-drama value chain, from video generation tools to distribution platforms, Nomura analysts say in a research note, citing industry experts. AI short dramas cost roughly 50%-90% less to produce than live-action versions, the industry experts estimate. ByteDance's Seedance is the most widely used AI video-generation tool for short dramas in China, they say. However, it costs more than rivals such as Kuaishou's Kling and Alibaba's Wan, one expert says. Studios increasingly turn to cheaper alternatives for less demanding shots to keep costs down, the experts say. ByteDance also leads in distribution with its Hongguo platform ranking as China's largest for short dramas, the analysts note.