In a significant development in the realm of copyright litigation and AI training, the legal battle between Thomson Reuters and ROSS Intelligence has resurfaced, capturing widespread attention in the legal tech industry. The focus of the dispute, as discussed during the oral arguments on June 11 before the 3rd U.S. Circuit Court of Appeals, revolves around whether ROSS’s utilization of Westlaw headnotes for training its legal research system falls under the protection of fair use. The panel of judges, composed of Judges L. Felipe Restrepo, Tamika R. Montgomery-Reeves, and Emil J. Bove, delved into the intricacies of the first and fourth fair-use factors: the transformative nature of ROSS’s use and the potential market harm to Thomson Reuters’ copyrighted works.
In a bid to reverse the district court’s ruling, Mark S. Davies of White & Case, representing ROSS, argued that the use of headnotes by ROSS was transformative and should be considered fair under recent precedents, such as the case of ASTM v. UpCodes. He asserted that the headnotes were adapted into questions to train a system capable of interpreting natural-language legal inquiries. Despite this, the judges frequently probed into the potential market impact, questioning the differences between ROSS’s technology and Westlaw’s offerings.
Conversely, Thomson Reuters, represented by Dale M. Cendali of Kirkland & Ellis, contended that ROSS’s actions constituted a classic case of substitution, undermining Westlaw by building a competing product using headnotes as training data. Cendali emphasized the market harm, identifying ROSS’s product as a substantial substitute and pointing out that Thomson Reuters had already been utilizing its headnotes for AI purposes long before ROSS’s emergence.
The issues at stake extend beyond the immediate case, touching upon broader implications for AI training and copyright law in the legal tech industry. As noted in an article covering the litigation’s progression, the outcome could influence how AI companies engage with copyrighted content when developing new technologies.
As the case awaits a ruling, the arguments underscore the ongoing balancing act between copyright protection and technological advancement, a theme echoed by both the court and the litigants. For further detailed insight into this legal confrontation, the full article offers an in-depth analysis of the court proceedings.