Reddit v. Anthropic Lawsuit: Claims, State Court, and Next Steps

The Reddit v. Anthropic lawsuit is a June 2025 suit filed by Reddit, Inc. in San Francisco Superior Court accusing Anthropic, PBC of scraping Reddit posts and user data — from as early as December 2021 through at least April 2024 — to train its chatbot Claude without a license. After Anthropic tried to move the case to federal court, a judge sent it back to state court in March 2026. Mediation is pending, and a jury trial is scheduled for February 2028.

What Reddit Says Anthropic Did

Reddit’s complaint accuses Anthropic of systematically scraping user-generated content in violation of Reddit’s User Agreement, which prohibits scraping, reverse engineering, and commercial use of the platform’s content without written consent.¹ Reddit says it approached Anthropic about a paid licensing deal similar to those it has with other AI companies, and Anthropic refused.²

The allegations go beyond straightforward copying. Reddit says Anthropic ignored robots.txt directives — the standard signal websites use to tell automated crawlers which pages are off-limits — while publicly claiming to honor them.³ Reddit also alleges Anthropic accessed its Compliance API, a tool intended only for licensed partners so they can be notified when users delete content and respect those choices. According to the complaint, Anthropic used the API without authorization and generated more than 100,000 calls.⁴

Reddit also alleges an affirmative misrepresentation. An Anthropic spokesperson said publicly in July 2024 that the company had blocked its bots from accessing Reddit. Reddit’s audit logs, according to the complaint, show Anthropic’s bots continued hitting Reddit’s servers more than 100,000 times in the months that followed.¹ Reddit says all of that unauthorized traffic imposed real costs on its infrastructure by consuming server capacity meant for actual users, and undercut the privacy commitments Reddit made to its community.⁵

The Five Claims and What Reddit Wants

Reddit brought five causes of action, all under California law. It deliberately did not bring a federal copyright claim, and that strategic choice shaped the biggest procedural fight in the case so far.

Breach of contract, on the theory that Anthropic accepted the Reddit User Agreement each time its bots accessed the platform and then violated its scraping and commercial-use restrictions.
Unjust enrichment, on the theory that Anthropic profited from Reddit’s data without paying for it while other AI companies did pay.
Trespass to chattels, based on the impact of automated scraping on Reddit’s server infrastructure.
Tortious interference, based on Anthropic allegedly interfering with Reddit’s contracts with its users by bypassing privacy safeguards.
Unfair competition under California Business and Professions Code Section 17200, including the allegation that Anthropic publicly claimed compliance while continuing to scrape.⁶

Reddit is seeking compensatory and punitive damages, a jury trial, and an injunction barring Anthropic from using Reddit data to train its products going forward.⁷ The complaint does not name a specific dollar figure.

Why the Case Is in State Court

Anthropic removed the case to federal court in July 2025, arguing that Reddit’s claims were really copyright claims dressed up as state-law claims and therefore belonged in federal court under the Copyright Act. If that argument had worked, federal copyright preemption could have wiped out Reddit’s state-law claims. Reddit moved to remand in August 2025, arguing its claims were about contracts, privacy, and server trespass, not copying.⁸

On March 30, 2026, U.S. District Judge Trina Thompson issued a 12-page order siding with Reddit. She applied the “extra elements” test, which asks whether a state-law claim involves something qualitatively different from what copyright law protects, and found all five claims cleared that bar.¹

The contract claim involved duties about access and commercial use that are separate from copyright’s rights of reproduction and distribution. The tortious interference claim sought to vindicate user privacy rights under Reddit’s contracts with its users, which the judge described as “unrelated to things like distribution and reproduction.”¹ The unjust enrichment and trespass claims turned on allegations of bypassing technical safeguards. And the unfair competition claim rested on the fraudulent-conduct theory: Anthropic publicly saying it honored robots.txt while allegedly ignoring it.³

Judge Thompson wrote that Anthropic’s “alleged violations go beyond merely copying Reddit’s content without permission” and involve “contractual rights under Reddit’s User Agreement, which are distinct from the rights granted by copyright law.”⁷ The case was sent back to San Francisco Superior Court.

Anthropic’s Response

Anthropic has said little publicly about the suit. A company spokeswoman did not immediately provide comment when the complaint was filed.² Anthropic later said it disagreed with Reddit’s claims and intended to “defend ourselves vigorously.”⁹

In a 2023 filing with the U.S. Copyright Office, Anthropic had argued that training Claude on publicly available material is “a quintessentially lawful use of materials,” framing AI training as statistical analysis rather than copying.⁹ That statement was made in a policy setting, not in this case. The docket does not show Anthropic filing a motion to dismiss or raising affirmative defenses such as fair use in this lawsuit.⁸

Where Things Stand and What Comes Next

With the remand order, the case is back in San Francisco Superior Court for litigation on the merits. The parties tried mediation on August 1, 2025, while the case was still in federal court, and it did not produce a settlement. A second round of private mediation has a court-ordered completion deadline of August 21, 2026. If mediation fails, a jury trial is scheduled for February 14 through March 8, 2028.⁸

Reddit’s chief legal officer, Ben Lee, framed the suit as a matter of fairness and user protection when it was filed: “We will not tolerate profit-seeking entities like Anthropic commercially exploiting Reddit content for billions of dollars without any return for redditors or respect for their privacy.”² He also said Reddit’s existing licensing agreements with other AI companies “enable us to enforce meaningful protections for our users, including the right to delete your content, user privacy protections, and preventing users from being spammed using this content.”⁹

How This Case Differs From Other AI Training Lawsuits

Most of the major AI training lawsuits pending in U.S. courts are copyright cases. The Reddit case is not. By building its claims around contract, privacy, and server trespass, Reddit sidesteps the fair use debate that has dominated the other litigation.

That matters because fair use has cut in favor of AI companies in some recent rulings. In Bartz v. Anthropic, Judge William Alsup found that training AI on legally acquired copyrighted works can be “transformative — spectacularly so,” though that same case produced a $1.5 billion settlement over Anthropic’s use of nearly 500,000 books downloaded from shadow libraries.¹⁰ In Kadrey v. Meta, Judge Vince Chhabria granted summary judgment for Meta on fair use grounds while leaving open a “market dilution” theory that could cut the other way in future cases.¹¹

Reddit’s approach tests a different theory: that even if the copying itself might be defensible, an AI company can still be liable for breaking the platform’s terms of service, bypassing technical access controls, and misrepresenting its own compliance. If Reddit wins on those grounds, other platforms will have a template.

1
Courthouse News Service. Reddit v. Anthropic Remand Order
2
New York Times. Reddit Anthropic Lawsuit Data
3
Loeb & Loeb LLP. Reddit Inc v Anthropic PBC
4
Sheppard Mullin. Beyond Copyright: Reddits Lawsuit Against Anthropic
5
Reddit, Inc. Docket Stamped Complaint
6
Crowell & Moring LLP. Northern District of California Court Holds State Tort and Contract Claims Not Preempted by Federal Copyright Act
7
Courthouse News Service. Reddit Privacy Case Against Anthropic Kicked Back to State Court
8
CourtListener. Reddit Inc v Anthropic PBC Docket
9
CBS News. Reddit AI Training Lawsuit Anthropic Scraping Chatbot Claude
10
Susman Godfrey LLP. Susman Godfrey Secures $1.5 Billion Settlement in Landmark AI Piracy Case
11
Authors Alliance. Meta Wins on Fair Use for Now but Court Leaves Door Open for Market Dilution