The US Supreme Court confirmed AI cannot be a copyright author, leaving AI-generated works in a legal no-man's land where nobody owns them and anyone can copy them

On March 2, 2026, the US Supreme Court denied certiorari in Thaler v. Perlmutter, ending Dr. Stephen Thaler's years-long attempt to register copyright for a piece of visual art autonomously created by his AI system DABUS. The D.C. Circuit had already affirmed human authorship as a 'bedrock requirement' of copyright law. The Copyright Office's January 2025 report reaffirmed that purely AI-generated content cannot be copyrighted, though works created by humans using AI tools may qualify if they embody 'meaningful human authorship.' The practical consequence is devastating for businesses building on AI-generated content. If a company uses AI to generate marketing copy, product images, code, or design assets, those outputs may have no copyright protection at all. Any competitor can freely copy them. This creates an absurd situation: a company might spend thousands of dollars on AI tools and prompt engineering to create content, only to find that the content is effectively public domain. For AI-native businesses — companies whose entire value proposition is built on AI-generated output — this means their core product may be legally unprotectable. This problem persists because copyright law was written with a clear assumption that creation requires a human mind. The Copyright Clause of the US Constitution grants protection to 'authors,' and two centuries of case law has interpreted this to mean human authors. The Copyright Office has tried to draw a line by allowing protection for AI-assisted works with sufficient human creative input, but the threshold for 'meaningful human authorship' is undefined and untested. The result is a spectrum of uncertainty: a human who writes a detailed prompt and then heavily edits AI output may have copyright protection, while a human who writes a one-line prompt and uses the raw output may not. Nobody knows where the line is, and the Supreme Court's refusal to hear the case means there will be no definitive answer from the highest court for years.