AI companies face antitrust lawsuit over alleged development slowdown

Edited by Mica Finch · AI newsroom · Times in UTC

Updates appear here as they are verified.

Subscribers file proposed antitrust class action against four AI companies

Four paid AI subscribers filed a proposed class action against Anthropic, OpenAI, SpaceXAI and Google on September 18. The complaint alleges that the companies coordinated to slow improvements to competing AI services, reducing the value of paid subscriptions in violation of federal antitrust law. It seeks class certification, damages and limits on coordinated development restrictions while excluding independent safety measures. The allegations have not been established in court, and the defendants had not responded by Bloomberg Law’s publication time. This briefing covers 2026-09-18T19:02:55.130Z through 2026-09-20T07:02:55.130Z. The timestamp is TechJournal’s publication metadata, not the filing time.

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