ByteDance vows safeguards for Seedance after Disney cease-and-desist

ByteDance announced it will tighten controls on its AI video generator Seedance 2.0 after major entertainment companies, unions and trade groups demanded the tool be reined in amid allegations of mass copyright infringement.

The Chinese tech group said it “respects intellectual property rights and we have heard the concerns regarding Seedance 2.0.” The company added: “We are taking steps to strengthen current safeguards as we work to prevent the unauthorised use of intellectual property and likeness by users.” ByteDance also said it had paused the ability for users to upload images of real people, but it declined to disclose the datasets used to train the model or to provide details on the new safeguards.

The escalation began when Disney sent a cease-and-desist letter accusing ByteDance of supplying Seedance with a “pirated library” of the studio’s copyrighted characters and of facilitating a “virtual smash-and-grab” of Disney intellectual property. Disney’s lawyers alleged the tool was reproducing, distributing and creating derivative works featuring characters from Marvel and Star Wars, including Spider-Man and Darth Vader. David Singer, a partner at Jenner & Block writing on Disney’s behalf, described the conduct as “ByteDance’s virtual smash-and-grab of Disney’s IP is willful, pervasive, and totally unacceptable.”

Paramount Skydance followed with its own legal demand, naming a range of properties it says appeared in Seedance and related products, including South Park, Star Trek, The Godfather and Dora the Explorer. The Motion Picture Association, representing major studios, demanded the tool “immediately cease its infringing activity,” while the actors’ union SAG-AFTRA and rights groups affiliated with Hollywood unions labeled the app’s output “blatant infringement.”

Seedance 2.0’s output has proliferated online in recent days, winning attention for its cinematic scenes and realistic rendering of well-known characters. Examples cited by industry sources include videos of Spider-Man and other Disney characters, anime figures that have prompted regulatory scrutiny in Japan, and a widely shared clip showing film stars in a staged rooftop fight. The wave of viral clips helped tip the debate about generative AI from academic and technical circles into the mainstream entertainment industry, where studios fear the technology could rapidly erode the commercial value of copyrighted material.

The row raises several legal and regulatory questions. Studios contend that pre-bundled assets or use of copyrighted works in training amounts to unlawful copying and distribution. ByteDance and Seedance’s defenders argue the technology is prompt-driven and generates novel content, but the company has so far not provided documentation about its training data or licensing arrangements. No court filings have been reported; the dialogue remains at the level of cease-and-desist letters and public demands.

The dispute is already attracting governmental attention. Authorities in Japan have opened inquiries after popular anime characters appeared in AI-generated clips, underscoring how the issue crosses borders and legal regimes. Industry groups say the situation calls for clearer global rules around training datasets, copyright liability and the responsibilities of AI platforms.

For now, studios, unions and trade associations are pressing for immediate, enforceable limits. ByteDance’s pledge to implement stronger safeguards will be measured against the demands from rights holders and regulators. The outcome will likely shape how quickly generative video tools proliferate and what guardrails are required to protect creative industries in the age of AI.