Four consumers have filed a class action suit in California accusing leading AI companies Anthropic, OpenAI, SpaceXAI, and Google of conspiring to slow the advancement of competing AI technologies. The case hinges on public statements about coordination that might violate US antitrust laws despite claims related to safety concerns.
- Lawsuit targets public coordination by major AI firms to slow AI development
- Alleges violation of Section 1 of the Sherman Act without antitrust exemption
- Focuses on public statements as evidence rather than secret agreements
What happened
On September 18, a class action suit was filed in the Northern District of California accusing Anthropic, OpenAI, SpaceXAI, and Google of agreeing publicly to slow their AI product development pace. The lawsuit, known as Buist v. Anthropic PBC, alleges a horizontal agreement that violates Section 1 of the Sherman Act by limiting competition.
The complaint draws heavily on public essays and executive statements—most notably from Anthropic’s Dario Amodei and OpenAI’s Sam Altman—that discuss coordination efforts and the need for an antitrust waiver. Despite these public communications, OpenAI stated it would not wait for any such waiver before proceeding.
Why it matters
The case is unusual because the alleged cartel conduct was openly discussed rather than hidden, relying mainly on public acknowledgment of coordination rather than internal confidential documents or secret meetings. This makes verification straightforward but also means the defendants openly engaged in behavior that could be deemed anticompetitive.
The plaintiffs argue the defendants’ safety justifications do not excuse potential antitrust violations, emphasizing that such policy decisions are for Congress or regulators, not the courts, to resolve. The lawsuit highlights tensions between managing AI risks responsibly and maintaining competitive innovation in a rapidly evolving industry.
What to watch next
The litigation will examine whether these public discussions amount to an unlawful agreement to restrain trade and how regulators and courts interpret antitrust laws in the context of emerging technology safety debates. The outcome could set precedents on how AI companies balance collaboration for safety versus competition.
Stakeholders should also monitor ongoing statements from the companies involved, potential government responses, and any legislative activity addressing AI development coordination and antitrust exemptions. The case underscores the challenge of ensuring both responsible AI advancement and robust market competition.