OpenAI is being sued for trademark infringement by AI software company TradeSun over the name of its GPT-6 Astra model. TradeSun accuses OpenAI of unauthorized use of its registered "Astra" trademark, constituting "reverse confusion," and is seeking a court order for OpenAI to remove the product name and pay damages.

TradeSun filed the lawsuit on Monday in the U.S. District Court for the Northern District of California, stating it has been selling AI software products under the Astra brand since 2021 and obtained federal trademark registration in 2022. An OpenAI spokesperson responded that the complaint is "without merit." This case is the latest trademark lawsuit OpenAI faces in the same court, following previous legal disputes over the "cameo" name for its Sora video generation tool and the "io" brand for its AI devices.