OpenAI will not be allowed use the word "cameo" to name any products or features in its Sora app for a month after a federal judge placed a temporary restraining order for the term on the AI startup.

U.S. District Judge Eumi K. Lee granted a temporary restraining order on Monday, blocking OpenAI from using the "cameo" mark or similar words like "Kameo" or "CameoVideo" for any function related to Sora, the company's AI-generated video app.

"We disagree with the complaint's assertion that anyone can claim exclusive ownership over the word 'cameo', and we look forward to continuing to make our case to the court," an OpenAI spokesperson told CNBC.

Lee granted the order after OpenAI was sued in October by Cameo , a platform that allows users to purchase personalized videos from celebrit

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