Publishers file a wave of copyright suits against Perplexity

Background

An AI answer engine does not work like a classic search engine. Instead of returning a list of links, it fetches the pages a question points to, reads them, and writes a direct answer, sometimes quoting or closely paraphrasing what it found. That behaviour sits at the centre of a series of lawsuits filed against Perplexity, an answer engine whose responses draw on material published by news organisations, reference works and online communities.

The litigation did not begin in 2025. Dow Jones and the New York Post had sued in 2024, and the New York Times sent a cease-and-desist letter in October 2024 ^[1]. A cease-and-desist letter is a written demand that the recipient stop the conduct described in it; it is usually a step taken before a case reaches court.

Automated access is a second thread. Web crawlers are programs that visit pages and copy their contents, and sites generally try to identify crawlers and set rules for them. In August 2025 Cloudflare published research accusing Perplexity of using undeclared "stealth" crawlers — crawlers that do not announce who they are ^[1].

The Japanese suits

The largest single wave came from Japan. In August 2025 the Yomiuri Shimbun sued Perplexity, and the Asahi Shimbun and Nikkei sued later that month ^[1]. Nieman Lab dates the Yomiuri filing to 7 August, in the Tokyo District Court, with the newspaper seeking nearly $15 million in damages ^[2].

What the Yomiuri suit alleges

According to Nieman Lab, the suit alleges that Perplexity accessed 119,467 articles on Yomiuri's website between February and June 2025 ^[2]. The count is notable: the complaint points not at a handful of scattered quotations but at a large set of individual articles, accessed within a defined period.

Reference works and platforms join

In September 2025 Encyclopædia Britannica and Merriam-Webster sued, and Reddit sued in October 2025 ^[1]. The plaintiffs come from different corners of publishing: a general reference house, a dictionary publisher, and a platform whose content is written by its users. What they share is a claim about how their material is used by a system that answers questions directly rather than sending readers to the source.

Later developments

The docket kept growing in 2026. In May 2026 CNN sued over more than 17,000 works ^[1]. In July 2026 a federal judge largely denied motions to dismiss the Reddit case ^[1]. That is a procedural ruling: it allows the case to continue rather than deciding whether the claims themselves succeed.

Why it matters

The suits span at least two jurisdictions and several kinds of rights holder — newspapers, a reference publisher, a dictionary publisher, a discussion platform. They ask courts to work out how existing copyright law applies when a machine reads published work and generates an answer from it, and whether the way a crawler presents itself makes a legal difference. The answers will shape what publishers can demand of AI companies and what answer engines may do with the web's content.