Amodei wrote that coordinating on pace would need an antitrust waiver. Altman said OpenAI would not wait for one. Both lines are now in a lawsuit.

Four consumers filed a class action lawsuit against Anthropic, OpenAI, SpaceXAI, and Google alleging a coordinated agreement to slow AI product improvements, violating antitrust laws. The suit cites public statements by executives as evidence of intent to coordinate despite antitrust risks. The alleged agreement includes limits on training compute and capability checkpoints, with no internal documents cited, relying solely on public admissions.