Copyright

Fair use, the scope of protection, and the rights of authors. Copyright doctrine tested by machine learning, mass digitization, and the music industry.

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AI & Copyright

Bartz v. Anthropic: Transformative Training, Unforgivable Acquisition

Judge Alsup held that training a large language model on books is 'exceedingly transformative' fair use, while refusing to extend that blessing to the pirated library that fed it. The $1.5 billion settlement that followed shows where the real exposure lies.

June 24, 2026
AI & Copyright

Kadrey v. Meta: A Fair-Use Win That Reads Like a Plaintiffs' Brief

Two days after Bartz, Judge Chhabria also found AI training to be fair use, but went out of his way to say the result reflected a failure of advocacy, not a vindication of the practice. His 'market dilution' theory is the doctrine to watch.

June 22, 2026
AI & Copyright

Thomson Reuters v. Ross: The First Refusal of Fair Use in the AI Era

Before the generative-AI rulings, a Delaware court rejected fair use for using copyrighted material to build an AI legal-research tool, and pointedly distinguished the software cases the technology industry had relied upon. Its reach is narrower than its reputation.

June 19, 2026
Copyrightability & Originality

Mazer v. Stein: Art Keeps Its Copyright Even as a Lamp Base

The Supreme Court held that a copyrighted statuette does not lose protection by being mass-produced and incorporated as the base of a utilitarian lamp, laying the groundwork for the useful-articles doctrine.

September 22, 2025
Software & Code

Sony v. Connectix: Reverse Engineering as Fair Use

The Ninth Circuit held that intermediate copying of Sony's PlayStation BIOS to reverse engineer a lawful emulator was fair use, protecting interoperability and cementing the Sega v. Accolade rule.

September 8, 2025
The Exclusive Rights

ABC v. Aereo: When 'Looks Like Cable' Beat the Engineering

The Supreme Court held that Aereo's array of dime-sized antennas publicly performed broadcast television, treating the service as functionally identical to a cable system despite its individualized architecture.

May 19, 2025