OpenAI Learned the Hard Way that Cameo Trademarked the Word ‘Cameo’

Why It Matters

The injunction forces OpenAI to rebrand a key Sora feature, potentially delaying product rollout and highlighting the growing legal risks of branding in the AI space, while underscoring the importance of trademark protection for established tech firms.

Summary

OpenAI’s new Sora social app featured a deep‑fake tool called “Cameo,” prompting a trademark dispute with video‑message platform Cameo. A U.S. District Judge issued a temporary restraining order on November 21, 2025, barring OpenAI from using the word “cameo” or similar terms on Sora, with the order set to expire on December 22, 2025 and a hearing scheduled for December 19. Despite the order, the Sora app continues to display the contested terminology. OpenAI maintains it does not infringe on Cameo’s trademark, while Cameo’s CEO argues the injunction protects consumers from confusion.