The AI company, founded in Toronto but with operations in San Francisco as well, filed the counterclaim in a Delaware district court on Sunday, just two days after it announced it would have to cease operations due to mounting legal expenses and an inability to raise new funding as a result of the lawsuit. (The Logic)

Talking point: The counterclaim includes a point-by-point rebuttal of allegations that Ross Intelligence stole proprietary content from Thomson Reuters’ legal research entity WestLaw through a third party and used it to develop a similar product. The AI startup instead accused Thomson Reuters of not having a claim to valid copyrights of Westlaw content. “It is well established in American law that judicial opinions and federal and state laws, including administrative rules and regulations, are not copyrightable, and must remain public as a matter of due process,” the counterclaim says. Ross co-founder and CEO Andrew Arruda tweeted that his company had partially withdrawn its motion to dismiss the initial lawsuit and filed its own suit as a strategic move to prevent Thomson Reuters from “holding the threat of future litigation over ROSS’ head.”