Recently a US case (Thaler v Comptroller-General of Patents, Designs and Trademarks), considered the ability of algorithmically generated artwork to attract copyright protection.
The court found against the appellant based on a principle of human authorship that – though not enshrined in copyright law – is a working principle used by the US Copyright Office.
The case reaffirmed US guidance issued in March 2023 as part of the US Copyright Office’s AI initiative – that copyright only protects material that is the product of human creativity. The Judge found that the concept of authorship has been “synonymous with human creation over time” and “[human] authorship is a bedrock requirement of copyright“.
The US district court stated that:
“[c]opyright has never stretched so far, however, as to protect works generated by new forms of technology operating absent any guiding human hand.”
(Note: That is not the case with copyright laws in some other countries.)
In another Copyright Office ruling, an award-winning generative artwork Théâtre D’opéra Spatial by Jason Matthew Allen was denied copyright.
“The Board finds that the Work contains more than a de minimis amount of content generated by artificial intelligence (“AI”), and this content must therefore be disclaimed in an application for registration. Because Mr. Allen is unwilling to disclaim the AI-generated material, the Work cannot be registered as submitted.”
US Copyright Office Ruling
Mr Allen insists he will fight on:
“Allen was dogged in his attempt to register his work. He sent a written explanation to the Copyright Office detailing how much he’d done to manipulate what Midjourney conjured, as well as how much he fiddled with the raw image, using Adobe Photoshop to fix flaws and Gigapixel AI to increase the size and resolution. He specified that creating the painting had required at least 624 text prompts and input revisions.”
WIRED – Why This Award-Winning Piece of AI Art Can’t Be Copyrighted

Théâtre_D’opéra_Spatial – Colorado State Fair, Matthew Allen
In my opinion, the advance of AI and the IP Devil risk (see “Why should we limit the scope of copyright to works with sufficient human input and effort?” below) means an examination of the extent of human input in AI-created works should always be a requirement in an IP assessment for creative work.
That said, in the case of Matthew Allen and his iterated creation, the Copyright Office is fundamentally wrong in its understanding of technology, the creative process and, with respect, the law. Mr Allen can demonstrate sufficient effort, expertise and creativity in how he used Midjourney to create his work. I expect a US court to make this clear when the matter is heard. The current approach to AI art by the Copyright Office will have the effect of chilling human creativity using AI tools.
The decision is also inconsistent with the Office’s guidance in other areas, e.g., photography:
“A work is original if it is independently created and is sufficiently creative. Creativity in photography can be found in a variety of ways and reflect the photographer’s artistic choices like the angle and position of subject(s) in the photograph, lighting, and timing.”
US Copyright Office
Copyright law does not suggest that the success of your claim for a photograph depends on whether you use a 35mm or old-school SLR versus a digital camera or smartphone (with many more advanced settings than were available in older cameras). Nor does it suggest that copyright will be determined by whether you removed any advanced technology features or on how many of the settings you changed.
The Copyright Office is not taking a technology-neutral approach to the use of AI (or algorithmic) tools. For other creative expressions (music, photography, writing) the test is effectively whether there is de minimis human creativity. For works using AI tools, the Copyright Office has made the test a different one i.e. whether there is no more than de minimis technological involvement.
If Mr Allen persists with his battle for legal recognition, we expect soon to have US legal precedent and guidance on what is sufficient human involvement in an AI process for work to be considered as ‘human authored’. Given the risks of AI, the Copyright Office would no doubt welcome some guidance too.
In fairness, the Copyright Office recognises the need for dialogue about the impact of AI tools on the existing regime. It recently published a Notice seeking feedback and comments on the use of AI, following the publication of its Registration Guidance Rule in March 2023:
“because the Office receives roughly half a million applications for registration each year, it sees new trends in registration activity that may require modifying or expanding the information required to be disclosed on an application.
One such recent development is the use of sophisticated artificial intelligence (“AI”) technologies capable of producing expressive material. These technologies “train” on vast quantities of preexisting human-authored works and use inferences from that training to generate new content. Some systems operate in response to a user’s textual instruction, called a “prompt.”
The resulting output may be textual, visual, or audio, and is determined by the AI based on its design and the material it has been trained on. These technologies, often described as “generative AI,” raise questions about whether the material they produce is protected by copyright, whether works consisting of both human-authored and AI-generated material may be registered, and what information should be provided to the Office by applicants seeking to register them.”
Copyright Office: Registration Guidance