Core Viewpoint - The Walt Disney Company has accused ByteDance of unauthorized use of Disney's works in the development of the Seedance 2.0 model, demanding that ByteDance "cease infringement and refrain from future violations" [1][5]. Group 1: Legal Accusations - Disney's letter, written by attorney David Singer, claims that ByteDance's Seedance service contains a preloaded library of pirated materials featuring Disney's copyrighted characters, including those from "Star Wars" and Marvel [2][6]. - Disney describes ByteDance's actions as treating highly commercialized intellectual properties as "free public domain clip art" [2][6]. - The letter emphasizes that the infringement observed on Seedance may only be the "tip of the iceberg," especially considering that Seedance was launched just two days prior [7]. Group 2: Seedance 2.0 Features - Seedance 2.0 was officially integrated into the Doubao app, computer, and web version on February 12, supporting features like original audio synchronization, multi-shot long narratives, and multi-modal controllable generation [7][8]. - Compared to version 1.5, Seedance 2.0 shows significant improvements in generation quality, particularly in complex interactions and motion scenes, with enhanced physical accuracy, realism, and controllability [8]. Group 3: Content Restrictions - Doubao has stated that Seedance 2.0 does not currently support the upload of real human images as reference subjects, and it cannot generate videos related to celebrities [3][9]. - The platform has strict regulations regarding content involving real celebrities and specific brands to avoid risks related to portrait rights and endorsement relationships, as well as to prevent misunderstandings regarding official endorsements [9].