Remove NovelAI content from Tumblr

The combined situation

NovelAI is a paid image generation service that originated as a text generation platform. The image generator supports explicit output and was an early target of leaked model weight redistribution. When NovelAI output appears on Tumblr, removal proceeds through the statutory takedown process under 47 USC 223a combined with source attribution to strengthen the legal claim.

Why this combination is high risk

The 2022 NovelAI weight leak created a long tail of derivative models that continue to produce explicit content using the original training characteristics. On Tumblr specifically, tumblr reblogs create persistent copies of content across hundreds of unrelated blogs. a single original post can have thousands of reblogs, each requiring a separate url in the takedown notice.

How removal proceeds

Tumblr accepts NCII reports through its content removal form and through its DMCA agent. The platform's 2018 adult content ban remains in effect, which means NCII reports also benefit from policy enforcement against any sexual content. Source attribution to NovelAI is documented through novelai uses a custom finetuned model with a recognizable rendering style, which strengthens the takedown notice and supports parallel legal action.