OpenAI launched GPT-4 in March this year. The capabilities and reputation of this model are at the top of the industry, and even became synonymous with “AI model”, which even caused panic in the industry. Experts reported earlier that people in the technology circle headed by Musk requested that “OpenAI temporarily stop research on GPT-5 research and development.”
However, according to the United States Patent and Trademark Office (USPTO), OpenAI has applied for the registration of the “GPT-5” trademark on the 18th of last month.

▲ Picture source United States Patent and Trademark Office (USPTO)
Judging from the trademark information, GPT-5 will provide functions such as text generation, natural language understanding, speech transcription, translation, and analysis.
However, OpenAI stated at a conference hosted by the Economic Times of India in early June this year that “the successor of GPT-4, GPT-5, has not yet started training.” OpenAI CEO Sam Altman previously stated, “When we start training GPT-5 Before that, they have a lot of work to do. We’re working on new ideas that we think we need, but we’re definitely not ready to start yet.”
It’s unclear whether OpenAI started training GPT-5 within those two months, so it’s possible the trademark was only registered for protective purposes.