The Third Circuit Court of Appeals recently ruled in a significant copyright case involving the use of artificial intelligence (AI) in legal research. The court affirmed a lower court's decision that Thomson Reuters Enterprise Centre GmbH's materials are protected by copyright and that ROSS Intelligence Inc. did not qualify for a fair use defense when it copied Thomson Reuters’ headnotes to train its AI platform. This ruling impacts both companies and sets important precedents for the use of copyrighted material in AI technology.
The case, Thomson Reuters Enterprise Centre GmbH v. Ross Intelligence Inc., was filed under docket number 25-2153. It centers on the dispute between Thomson Reuters, a long-established player in legal publishing, and ROSS, a newer competitor aiming to innovate in legal research through AI. The outcome of this case has implications for how copyright laws apply to emerging technologies in the legal field.
Background
Thomson Reuters, which owns Westlaw, a leading online legal research platform, accused ROSS of copyright infringement. ROSS, founded by three University of Toronto students, developed an AI legal search engine that responds to legal queries with relevant text from judicial opinions. To train its AI, ROSS used approximately 25,000 legal memos created by LegalEase Solutions, which included content derived from Thomson Reuters’ headnotes.
Thomson Reuters claimed that ROSS copied 2,243 of its headnotes, which are concise summaries of legal opinions, to train its AI system without permission. ROSS argued that its use of these headnotes was fair use, asserting that it was promoting innovation in legal technology. The case was initially heard in the U.S. District Court for Delaware, which granted partial summary judgment to Thomson Reuters, leading to ROSS's appeal to the Third Circuit.
The Ruling
The Third Circuit, led by Circuit Judge Montgomery-Reeves, upheld the lower court's ruling, stating that Thomson Reuters's headnotes possess sufficient originality for copyright protection. The court noted, “The undisputed evidence reflects that Thomson Reuters’s materials possess a creative spark.” The judges determined that ROSS's use of the headnotes was not fair use, primarily because ROSS aimed to compete directly with Thomson Reuters in the legal research market.
The court's opinion emphasized that ROSS's copying of the headnotes was not transformative enough to qualify for fair use. The judges stated, “ROSS aspired to be a direct competitor by using them for a highly similar purpose.” This ruling reinforces the idea that merely using copyrighted material for a similar purpose does not constitute fair use, especially when the use is commercial.
Impact
This ruling has significant implications for the legal industry and the use of AI technologies. It clarifies that copyright protections extend to materials used in AI training, which could impact how companies develop AI tools in the future. The decision indicates that companies must be cautious when using copyrighted materials, even if they aim to innovate or improve upon existing technologies.
The ruling also emphasizes the importance of originality in copyright law. By affirming that Thomson Reuters's headnotes are copyrightable, the court sets a precedent that could affect other legal publishers and their content. This case may influence how future disputes involving AI and copyright are resolved, particularly in the legal field.
What's Next
ROSS may seek to appeal the decision to the U.S. Supreme Court, although details were not available in the court filing. The outcome of this case could have lasting effects on the intersection of copyright law and emerging technologies, particularly as AI continues to evolve in various industries.