Britannica Sues Perplexity AI for Copyright and Trademark Infringement

Thumbnail Image

The information displayed in the AIM should not be reported as representing the official views of the OECD or of its member countries.

The Britannica Group has filed a lawsuit against Perplexity AI, alleging that Perplexity's AI answer engine illegally used Britannica's copyrighted and trademarked content, often verbatim, without consent or attribution. The case highlights intellectual property violations resulting from the use of AI-generated outputs.[AI generated]

Why's our monitor labelling this an incident or hazard?

The lawsuit alleges that Perplexity AI, an AI system, has used copyrighted content from Britannica and Merriam-Webster without authorization, leading to a breach of intellectual property rights. This is a direct harm caused by the AI system's use, fitting the definition of an AI Incident under violations of intellectual property rights.[AI generated]
AI principles
AccountabilityTransparency & explainability

Industries
Media, social platforms, and marketing

Affected stakeholders
Business

Harm types
Economic/PropertyReputational

Severity
AI incident

Business function:
Citizen/customer service

AI system task:
Content generation


Articles about this incident or hazard

Thumbnail Image

Britannica, Merriam-Webster Sue Perplexity Over Content Use - Law360

2025-09-11
law360.com
Why's our monitor labelling this an incident or hazard?
The lawsuit alleges that Perplexity AI, an AI system, has used copyrighted content from Britannica and Merriam-Webster without authorization, leading to a breach of intellectual property rights. This is a direct harm caused by the AI system's use, fitting the definition of an AI Incident under violations of intellectual property rights.
Thumbnail Image

Britannica, Merriam-Webster Sue Perplexity AI Over Site Scraping

2025-09-10
news.bloomberglaw.com
Why's our monitor labelling this an incident or hazard?
The event centers on the use of an AI system (Perplexity AI) that scrapes and uses protected content without authorization, which constitutes a violation of intellectual property rights. Since the lawsuit alleges that the AI system's use has directly led to copyright infringement and trademark dilution, this qualifies as an AI Incident under the framework, specifically a violation of intellectual property rights (c).
Thumbnail Image

Encyclopedia Britannica sues Perplexity over AI 'answer engine'

2025-09-11
Reuters
Why's our monitor labelling this an incident or hazard?
The event involves an AI system (Perplexity's answer engine) whose use has allegedly led to violations of intellectual property rights, a recognized category of harm under the AI Incident definition. The lawsuit indicates that the AI system's development and use directly caused harm to the plaintiffs by unauthorized copying and misattribution, which are legal harms. Therefore, this qualifies as an AI Incident because the AI system's use has directly led to a breach of intellectual property rights.
Thumbnail Image

Britannica and Merriam-Webster Sue Perplexity AI Over Copyright Claims | PYMNTS.com

2025-09-11
PYMNTS.com
Why's our monitor labelling this an incident or hazard?
The complaint directly involves the use of an AI system that generates summaries by scanning and repurposing copyrighted content, which has led to financial harm and alleged trademark violations. This fits the definition of an AI Incident because the AI system's use has directly led to a violation of intellectual property rights and financial harm to the plaintiffs. Therefore, the event qualifies as an AI Incident.
Thumbnail Image

Why Perplexity has been sued by Merriam-Webster, Encyclopedia Britannica

2025-09-12
NewsBytes
Why's our monitor labelling this an incident or hazard?
Perplexity's 'answer engine' is an AI system that generates content by processing input queries. The lawsuit alleges that this AI system unlawfully reproduces copyrighted material and produces misleading information, which constitutes a violation of intellectual property rights and harm to the reputation of the plaintiffs. Since the harm (copyright infringement and misinformation) has already occurred and is directly linked to the AI system's use, this qualifies as an AI Incident under the framework.
Thumbnail Image

Britannica files copyright lawsuit against Perplexity AI over online summaries

2025-09-11
Crain's Chicago Business
Why's our monitor labelling this an incident or hazard?
The lawsuit alleges that Perplexity AI used Britannica's copyrighted content without permission, which is a breach of intellectual property rights. Since the AI system's development and use directly led to this alleged violation, it qualifies as an AI Incident under the category of violations of intellectual property rights.
Thumbnail Image

Britannica Files Copyright and Trademark Infringement Lawsuit Against Perplexity

2025-09-11
madison.com
Why's our monitor labelling this an incident or hazard?
The event involves an AI system (Perplexity's AI-powered answer engine) whose use has directly led to a violation of intellectual property rights, a recognized category of harm under the AI Incident definition. Since the infringement has already occurred and is the subject of legal action, this qualifies as an AI Incident rather than a hazard or complementary information. The AI system's role is pivotal as it is the means by which the copyrighted content was used without authorization.
Thumbnail Image

Britannica Files Copyright and Trademark Infringement Lawsuit Against Perplexity

2025-09-11
pantagraph.com
Why's our monitor labelling this an incident or hazard?
The event explicitly involves an AI system (Perplexity's AI-powered answer engine) whose use has led to a violation of intellectual property rights, a recognized harm under the AI Incident definition. The lawsuit alleges direct use of Britannica's content without permission, which is a breach of intellectual property rights. Therefore, this qualifies as an AI Incident due to the realized harm caused by the AI system's use.
Thumbnail Image

Britannica Files Copyright and Trademark Infringement Lawsuit Against Perplexity

2025-09-11
Sioux City Journal
Why's our monitor labelling this an incident or hazard?
The event involves an AI system (Perplexity's AI answer engine) whose use has directly led to a violation of intellectual property rights, a recognized harm under the AI Incident definition. Since the lawsuit alleges actual infringement and unauthorized use of content, this is a realized harm, not just a potential risk. Therefore, this qualifies as an AI Incident due to the AI system's role in causing a breach of intellectual property rights.
Thumbnail Image

Britannica Files Copyright and Trademark Infringement Lawsuit Against Perplexity

2025-09-11
North Texas Daily
Why's our monitor labelling this an incident or hazard?
The event involves an AI system (Perplexity's AI answer engine) whose use has allegedly led to violations of intellectual property rights, a form of harm under the AI Incident definition. Since the lawsuit concerns actual use and harm (copyright and trademark infringement) caused by the AI system's outputs, this qualifies as an AI Incident rather than a hazard or complementary information.
Thumbnail Image

Britannica Files Copyright and Trademark Infringement Lawsuit Against Perplexity

2025-09-11
Hanna Newspapers
Why's our monitor labelling this an incident or hazard?
The event involves an AI company (Perplexity) accused of copyright and trademark infringement, which constitutes a violation of intellectual property rights due to the AI system's development or use. This meets the criteria for an AI Incident as the AI system's use has directly led to a breach of legal obligations protecting intellectual property rights.
Thumbnail Image

Merriam-Webster and Encyclopedia Britannica sue Perplexity

2025-09-12
Yahoo! Finance
Why's our monitor labelling this an incident or hazard?
The event explicitly involves an AI system (Perplexity's answer engine) that uses AI to generate answers by copying content from protected sources without authorization. This use has directly led to alleged violations of intellectual property rights, which is a recognized harm under the AI Incident framework. The lawsuits indicate that the harm has already occurred, not just a potential risk, making this an AI Incident rather than a hazard or complementary information. The event is not merely about general AI news or product announcements but concerns specific legal claims about harm caused by the AI system's use of copyrighted content.
Thumbnail Image

Encyclopedia Britannica Wants Perplexity to Stop Using Its Logos When AI Makes Stuff Up

2025-09-12
CNET
Why's our monitor labelling this an incident or hazard?
The event involves an AI system (Perplexity's AI answers engine, which uses a large language model) whose outputs allegedly infringe on copyright and trademark rights, causing harm to the rights holder (Encyclopedia Britannica). The harm includes violation of intellectual property rights and reputational damage due to AI hallucinations falsely linked to Britannica's brand. This fits the definition of an AI Incident because the AI system's use has directly led to violations of intellectual property rights and harm to reputation, which is a form of harm to rights and communities. The event is not merely a potential risk but an ongoing legal dispute about realized harm from AI-generated content.
Thumbnail Image

Perplexity hit with a lawsuit by two knowledge titans

2025-09-12
Digital Trends
Why's our monitor labelling this an incident or hazard?
The event involves an AI system (Perplexity) whose use has directly led to alleged violations of intellectual property rights (copyright and trademark infringement) and economic harm (loss of revenue due to traffic cannibalization). These harms fall under the definition of an AI Incident, specifically under category (c) violations of human rights or breach of obligations under applicable law intended to protect intellectual property rights, and (e) other significant harms where the AI system's role is pivotal. The lawsuit and allegations indicate realized harm, not just potential harm, thus qualifying this as an AI Incident rather than a hazard or complementary information.
Thumbnail Image

Encyclopedia Britannica and Merriam-Webster sue AI search company Perplexity

2025-09-12
The Verge
Why's our monitor labelling this an incident or hazard?
Perplexity's AI system is explicitly mentioned as scraping and reproducing copyrighted content without proper citation, leading to alleged copyright and trademark infringement. This constitutes a violation of intellectual property rights, which is a recognized harm under the AI Incident category. The lawsuit indicates that the harm has already occurred, not just a potential risk, thus qualifying this event as an AI Incident rather than a hazard or complementary information.
Thumbnail Image

Perplexity's definition of copyright gets it sued by the dictionary

2025-09-11
engadget
Why's our monitor labelling this an incident or hazard?
The event involves an AI system (Perplexity's answer engine) that uses AI to generate responses by copying copyrighted content without authorization, which is a violation of intellectual property rights. The lawsuit claims actual harm has occurred due to this unauthorized use and false attributions, meeting the criteria for an AI Incident. The harm is realized (copyright infringement and misinformation), not just potential, so it is not a hazard or complementary information.
Thumbnail Image

After Anthropic's Billion-Dollar Settlement, Dictionaries Are Suing Perplexity AI

2025-09-12
Gizmodo
Why's our monitor labelling this an incident or hazard?
The event involves an AI system (Perplexity's AI-powered answer engine) whose use has directly led to alleged violations of intellectual property rights and economic harm to content publishers. The lawsuit claims that the AI system copied copyrighted content and generated hallucinated answers attributed to the publishers, which constitutes a breach of legal protections. This fits the definition of an AI Incident because the AI system's use has directly led to harm in the form of copyright and trademark violations and economic damage to the publishers.
Thumbnail Image

Britannica, Merriam-Webster Sue Perplexity For Alleged Copyright Infringement

2025-09-11
MediaPost
Why's our monitor labelling this an incident or hazard?
The lawsuit explicitly accuses Perplexity AI of unauthorized copying of copyrighted content to generate AI-driven summaries, which directly infringes on intellectual property rights. This constitutes a violation of legal protections intended to safeguard such rights, fulfilling the criteria for an AI Incident. The harm is realized (not just potential), as it affects the plaintiffs' revenue and rights. Therefore, this event is classified as an AI Incident.
Thumbnail Image

Perplexity Faces Lawsuit from Britannica, Merriam-Webster Over Copyright, Trademark Violations

2025-09-12
Tech Times
Why's our monitor labelling this an incident or hazard?
The event explicitly involves an AI system (Perplexity's AI chatbot) that uses content from Britannica and Merriam-Webster without authorization, leading to alleged copyright and trademark violations. These violations constitute a breach of intellectual property rights, a form of harm covered under AI Incidents. The lawsuit indicates that the AI system's use has directly caused harm to the plaintiffs' earnings and reputation. Therefore, this qualifies as an AI Incident rather than a hazard or complementary information, as the harm is realized and the AI system's role is pivotal in causing it.
Thumbnail Image

Britannica and Merriam-Webster Sue Perplexity AI Over Copyright Infringement

2025-09-12
WebProNews
Why's our monitor labelling this an incident or hazard?
The article explicitly describes Perplexity AI's system scraping and reproducing copyrighted content without authorization, leading to legal claims of copyright and trademark infringement. This is a direct violation of intellectual property rights caused by the AI system's use. The harm is realized and ongoing, as the plaintiffs seek damages and injunctions. Hence, the event meets the criteria for an AI Incident due to violations of rights under applicable law caused by the AI system's use.
Thumbnail Image

Publishers vs Perplexity: Britannica and Merriam-Webster Sue AI Upstart Over Copyright Grab Publishers vs Perplexity: Britannica and Merriam-Webster Sue AI Upstart Over Copyright Grab -

2025-09-11
LawFuel
Why's our monitor labelling this an incident or hazard?
The event involves an AI system (Perplexity AI) whose development and use (specifically, its data sourcing and content generation) allegedly infringes on copyright laws by using publishers' content without authorization. This is a direct violation of intellectual property rights, which falls under the definition of harm (c) in the AI Incident framework. Since the harm (copyright infringement) is occurring and legal action is underway, this qualifies as an AI Incident rather than a hazard or complementary information.
Thumbnail Image

The dictionary is suing Perplexity AI for incorrectly using the definition of "copyright"

2025-09-12
GameReactor
Why's our monitor labelling this an incident or hazard?
The involvement of Perplexity AI, an AI system generating summaries, is explicit. The lawsuit claims that the AI's use of copyrighted material caused harm by unlawfully copying content and redirecting web traffic, which constitutes a violation of intellectual property rights. This harm has already occurred, making it an AI Incident under the framework's definition of violations of intellectual property rights caused by AI system use.
Thumbnail Image

Encyclopedia Britannica and Merriam-Webster Sue Perplexity for Copyright Theft and Brand Damage - WinBuzzer

2025-09-12
WinBuzzer
Why's our monitor labelling this an incident or hazard?
The article explicitly involves an AI system (Perplexity AI's 'answer engine') that uses copyrighted content without authorization and generates inaccurate information falsely attributed to reputable brands, causing harm to intellectual property rights and brand reputation. These harms have materialized and are the basis of legal action, fulfilling the criteria for an AI Incident. The involvement of the AI system in the development and use stages directly leads to these harms, making this a clear case of AI Incident rather than a hazard or complementary information.
Thumbnail Image

Encyclopedia Britannica sues Perplexity over AI 'answer engine'

2025-09-12
Quinta’s weblog
Why's our monitor labelling this an incident or hazard?
The event explicitly involves an AI system (Perplexity AI's answer engine) whose use is alleged to have caused harm in the form of intellectual property rights violations and economic harm to the content owners. Since the AI system's use is directly linked to a violation of intellectual property rights and economic harm, this qualifies as an AI Incident under the framework.
Thumbnail Image

Britannica Demands Perplexity Stop Using Logos for AI Errors - News Directory 3

2025-09-12
News Directory 3
Why's our monitor labelling this an incident or hazard?
The event explicitly involves an AI system (Perplexity's AI) whose use (web scraping and content generation) allegedly infringes on intellectual property rights, a recognized harm under the framework. This constitutes a violation of intellectual property rights due to the AI system's development and use, making it an AI Incident. The lawsuit and copyright infringement claims indicate realized harm rather than just potential risk.
Thumbnail Image

Encyclopedia Britannica and Merriam-Webster sue Perplexity AI

2025-09-13
Cryptopolitan
Why's our monitor labelling this an incident or hazard?
The event clearly describes an AI system (Perplexity AI's answer engine) whose use has directly led to alleged violations of intellectual property rights (copyright and trademark infringement) and economic harm to the plaintiffs. The AI system's development and use are central to the incident, as it generates AI-created content that allegedly plagiarizes and misattributes source material, causing harm to the rights holders. This fits the definition of an AI Incident because the harm (violation of intellectual property rights and economic loss) has occurred and is directly linked to the AI system's use.
Thumbnail Image

Britannica, Merriam-Webster Sue Perplexity in Escalating AI Copyright Battle - Tekedia

2025-09-13
Tekedia
Why's our monitor labelling this an incident or hazard?
The article describes a legal case where Perplexity's AI system is accused of systematically scraping copyrighted content and reproducing it without permission, leading to violations of intellectual property rights and harm to brand credibility. The AI system's development and use directly led to these harms, fulfilling the criteria for an AI Incident under the OECD framework. The harm is realized (copyright infringement and trademark misuse), not just potential, and the AI system's role is pivotal in causing this harm.
Thumbnail Image

Britannica, Merriam-Webster sue Perplexity over copyright

2025-09-14
Cybernews
Why's our monitor labelling this an incident or hazard?
The event involves an AI system (Perplexity's AI answer engine) whose use has directly led to alleged violations of intellectual property rights (copyright infringement) and trademark misuse, which are harms covered under the AI Incident definition (c). The harm is realized as the lawsuit claims actual unauthorized copying and misleading AI-generated content causing confusion and damage. Therefore, this qualifies as an AI Incident rather than a hazard or complementary information.