On March 2, 2026, the U.S. Supreme Court denied certiorari in Thaler v. Perlmutter, ending—at least for the moment—the most prominent effort to secure copyright protection for works created entirely by artificial intelligence. 

The petition asked the Court to decide whether a work generated autonomously by an AI system, without direct human creative input, can qualify as a copyrighted “work of authorship” under the Copyright Act. By declining review, the Court left intact the D.C. Circuit’s decision affirming the Copyright Office’s long‑standing position: Copyright protection requires human authorship. 

What the Court Did—and Did Not—Decide

The denial of certiorari is not a ruling on the merits. But it does have practical effect. The D.C. Circuit’s opinion now stands as the controlling appellate authority, reinforcing that works generated autonomously by AI systems—where no human exercises creative control over the expressive elements—are not eligible for copyright registration in the United States. 

At the same time, the Court’s inaction leaves critical questions unresolved. Neither the Supreme Court nor the lower courts have drawn a bright line defining how much human involvement is “enough” when AI is used as a tool rather than a substitute for human creativity. The Copyright Office has instead adopted a case‑by‑case approach, focusing on whether a human meaningfully selected, arranged, or modified the AI output. 

Why This Matters for Businesses and Creators

For companies developing, deploying, or commercializing generative AI, the takeaway is both clarifying and cautionary. Purely AI‑generated content remains outside the protection of U.S. copyright law, limiting the ability to rely on exclusive rights as a competitive moat. Licensing models, terms of service, and IP strategies must account for that reality. 

At the same time, the decision underscores the continued legal value of human creativity. Where humans direct, curate, or creatively shape AI‑assisted outputs, copyright protection may still attach—but only to the human contributions themselves. 

Looking Ahead

By declining to intervene, the Supreme Court has effectively signaled that any expansion of copyright to cover machine authorship is more likely to come from Congress than the courts. Until then, the law remains grounded in a simple principle: AI may be a powerful tool, but under current U.S. law, it is not an author.