Legal technology firm Fastcase, now a subsidiary of Clio, has initiated legal proceedings against Alexi Technologies Inc., alleging breach of contract, misappropriation of trade secrets, and trademark infringement. The lawsuit, filed on November 26, 2025, in the U.S. District Court for the District of Columbia, centers on claims that Alexi improperly utilized Fastcase’s proprietary legal database to develop its own AI-driven legal research platform.
According to the complaint, Fastcase and Alexi entered into a Data License Agreement in 2021, granting Alexi limited access to Fastcase’s extensive legal database strictly for internal research purposes. The agreement explicitly prohibited Alexi from using the data for commercial purposes, competing with Fastcase, or publishing any portion of the database. Fastcase alleges that Alexi violated these terms by employing the data to train its AI models and by displaying case law sourced from Fastcase to its users, effectively positioning itself as a direct competitor. ([artificiallawyer.com](https://www.artificiallawyer.com/2025/12/02/fastcase-part-of-clio-sues-alexi/?utm_source=openai))
Fastcase contends that Alexi’s actions were deliberate, aiming to circumvent the substantial investment required to build a comprehensive legal research platform. The lawsuit also accuses Alexi of using Fastcase’s trademarks in its interface, potentially misleading users into believing there was an affiliation between the two companies. ([artificiallawyer.com](https://www.artificiallawyer.com/2025/12/02/fastcase-part-of-clio-sues-alexi/?utm_source=openai))
In response, Alexi’s CEO, Mark Doble, denied any wrongdoing, asserting that the company has operated within the bounds of the licensing agreement. Doble stated, “We’re very confident we can easily demonstrate that we’ve done nothing that puts us outside the scope of our license agreement, and that we’ll have a full resolution soon.” ([reuters.com](https://www.reuters.com/legal/litigation/clios-fastcase-sues-rival-legal-tech-firm-alexi-2025-12-01/?utm_source=openai))
Fastcase is seeking a permanent injunction to prevent Alexi from using its data, the destruction of all derived datasets and AI model weights, disgorgement of profits, and damages. This legal action underscores the intensifying competition and complex intellectual property considerations within the legal technology sector, particularly as companies increasingly integrate AI into their offerings. ([reuters.com](https://www.reuters.com/legal/litigation/clios-fastcase-sues-rival-legal-tech-firm-alexi-2025-12-01/?utm_source=openai))
The case is titled “Fastcase, Inc. v. Alexi Technologies Inc.,” case number 1:25-cv-04159, in the U.S. District Court for the District of Columbia. ([dockets.justia.com](https://dockets.justia.com/docket/district-of-columbia/dcdce/1%3A2025cv04159/287202?utm_source=openai))