Copyright of AI Output and Tool Licensing

You can own the rights a tool's contract gives you and still have no copyright at all. Those are two different questions, and mixing them up is the most common mistake people make with AI output.

Question one: is there a copyright?

U.S. copyright protects original expression by a human author. The U.S. Copyright Office applied that rule to generative AI in Part 2 of its Copyright and Artificial Intelligence report, published January 2025. Its conclusions, in plain terms:

• Prompts alone are not enough. With generally available technology, a prompt is an instruction that conveys ideas. The system decides how those ideas become an image, so the person typing is not the author of the output. Revising the prompt 400 times does not change this.
• Your own input stays yours. If you feed in your own drawing or photo (an expressive input) and it is still perceptible in the result, you are the author of that portion.
• Selection and arrangement can be protected. Choosing and ordering AI pieces creatively, as in a comic, a collage or a video, can be protected as a whole. The AI pieces inside remain unprotected.
• Real editing counts. Substantial creative modifications by a human can qualify, decided case by case. Tools that let you control exactly where elements go may also get there.
• No new law needed. The Office concluded existing law handles these questions and did not recommend a special new right for AI output.

The courts agree on the core point. In Thaler v. Perlmutter, Stephen Thaler tried to register an image called "A Recent Entrance to Paradise," listing his AI system as the author. The D.C. Circuit held in March 2025 that the Copyright Act requires a human author, and the Supreme Court declined to hear the case on March 2, 2026.

Sorting a real project

How registration handles AI material

The Office's March 2023 registration guidance says applicants have a duty to disclose AI-generated content that is more than minimal. It points to the Standard Application. The "Author Created" field describes what the human made, and an AI tool is never listed as an author. Under "Limitation of the Claim," the "Other" box of "Material Excluded" describes the AI content followed by "generated by artificial intelligence." For the explainer: Author Created, "script, photographs, titles, and selection and arrangement of the video"; Material Excluded, "illustrations, voice performance and music generated by artificial intelligence." Hiding the AI parts can sink the registration. The Copyright Office FAQ covers how registration works in general.

Question two: what does the contract say?

Every tool has terms of service. They decide what a user may do with output, what the company may do with your prompts and output, and whether everyone can see what you made. They cannot create a copyright that the law does not recognize, but they can restrict users or license them.

All terms as of October 2026. They change, sometimes quietly. For a paid or high-stakes project, the terms in force on the day of generation are the ones that matter, and an old version can vanish from the site without notice.

Traps

Trap one: output that copies someone else's work. Owning your output under a contract does not protect you if the output infringes someone else's copyright or trademark. Ask for "a cartoon mouse with round black ears and red shorts" and you may get something that a large company's lawyers recognize instantly. Prompts naming famous characters, logos or living artists' styles invite exactly this, and anything in the output that seems familiar deserves a hard look.

Trap two: your inputs. Uploading a photo you do not own as a reference image does not launder it. Upload a newspaper's photo and ask for "the same scene as a watercolor," and the result is a derivative of their photo. Your own photos, licensed photos or public domain material avoid the problem.