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Court rulings, company filings and allegations in the copyright cases against AI companies and pirate libraries, over books, articles, music, images, video and code. Checked for new filings every three hours; items are posted after review, so some appear later. Get these by e-mail · Court filings, free to read

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Company filingJuly 9, 2026James v. Cerebras Systems Inc. · N.D. Cal. 4:25-cv-09361

Cerebras admits it used parts of The Pile for its models and built its SlimPajama dataset from RedPajama

In its answer to the authors' amended complaint, Cerebras admits it used portions of The Pile in connection with its Cerebras-GPT models, which it released as open-source models. It admits it created the SlimPajama dataset from portions of RedPajama, by removing short, low-quality documents and duplicates, and released SlimPajama on Hugging Face as an open-source dataset for training language models. Cerebras says it is without knowledge of whether RedPajama contained Books3 or the plaintiffs' works, and of how many times SlimPajama was downloaded. Its original answer in February 2026 addressed only The Pile; the SlimPajama admissions are new. In separate suits, Together AI has admitted that RedPajama as first released included part of Books3, and Adobe has admitted that SlimPajama was used to pre-train its SlimLM research models. These are each company's own statements in its pleadings; no court has made findings on them.

Cerebras's answer to the amended complaint (Dkt. 76), paras. 10, 28, 33, 39, 62 ↗Adobe's answer in Lyon v. Adobe (Dkt. 36), paras. 5, 27, 28 ↗

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What the labels mean

Every item says what kind of source it rests on. A court ruling or order is the court's own statement. A company filing is what a defendant says about itself. A government filing is a statement by a government agency that is not a party to the case, such as a statement of interest; it is the government's position, not a ruling. An allegation is what a complaint or motion claims and has not been decided. Reported means press reporting we have not confirmed from the primary document. Summaries are our own; follow the links for the source.

This page is general information, not legal advice. An allegation is not a finding. Whether any of this matters for a particular work or claim is a question for a lawyer.