You type a prompt, an AI produces an image, a song or an article. Who owns it — you, the AI company, or no one? The answer matters for artists, businesses and anyone who publishes AI-assisted work. In many countries the core principle is the same: copyright protects human creativity.

The human authorship requirement

In the United States, copyright law has long required a human author. The US Copyright Office has applied this to AI:

  • Material generated entirely by AI is not protected by copyright.
  • Works that combine human and AI contributions can be protected for the human parts.
  • In its January 2025 report on copyrightability, the Office concluded that prompts alone generally do not give users enough control over the output to make them its authors, while human creative choices in selecting, arranging or modifying AI output can be protected.

Courts have backed the principle. In Thaler v. Perlmutter, the federal courts upheld the Copyright Office’s refusal to register an image that its creator said was generated autonomously by his AI system, confirming that human authorship is required; the appeals court affirmed in 2025.

The comic book case

In 2023, the Copyright Office reviewed Zarya of the Dawn, a comic book whose images were made with Midjourney. It granted protection for the text written by the author and the selection and arrangement of images and text, but not for the individual AI-generated images themselves. This became a template for mixed works.

Other countries

  • European Union: copyright generally requires an “author’s own intellectual creation”, which implies human creative choices.
  • United Kingdom: its law contains a provision for “computer-generated works” without a human author, giving protection to the person who made the arrangements for creation, though how it applies to modern generative AI is debated and under review.
  • China: a Beijing court in 2023 recognized copyright in an AI-generated image based on the user’s creative input in prompts and settings — showing that approaches can differ.

What tool terms say

AI services’ terms of use usually assign whatever rights exist in outputs to the user, and some offer indemnities against copyright claims for business customers. But a contract cannot create copyright where the law doesn’t recognize it.

Practical advice for creators and businesses

  1. Add meaningful human creativity: edit, combine, compose, rewrite, paint over. The more of the final work reflects your choices, the stronger your claim.
  2. Keep records of your process: drafts, edits and decisions.
  3. Disclose AI use when registering works where required, and identify AI-generated parts.
  4. Use contracts: agreements with clients can allocate ownership and responsibilities even where copyright is uncertain.
  5. Check outputs for similarity to existing works before commercial use.

What to watch next

  • Further court decisions on how much human input is needed for protection of AI-assisted works.
  • Registration guidance as copyright offices handle more mixed human–AI works.
  • UK reform of its computer-generated works provision.
  • Labelling rules for AI-generated content that may affect commercial use.
  • Contract practices in creative industries allocating rights in AI-assisted work.

Key takeaways

  • Copyright generally protects human creativity, not output generated entirely by AI.
  • The US Copyright Office says prompts alone usually do not make someone the author of an AI output.
  • Human selection, arrangement and modification of AI material can be protected.
  • Courts upheld the human authorship requirement in Thaler v. Perlmutter.
  • Rules differ between countries; keep records of your creative process.

Frequently asked questions

If I write a very detailed prompt, do I own the image?

Under current US guidance, usually not for the image itself, because the system determines the expressive details. Your own modifications and arrangements can be protected.

Can I sell AI-generated art?

Generally yes, subject to the tool’s terms. But you may not be able to stop others from copying purely AI-generated elements.

Do I have to disclose AI use?

When registering copyright in the US, you must identify AI-generated material. Platforms and some laws also require labelling AI content in certain contexts.