OpenAI is accelerating preparations to launch an always-on personal AI assistant named "o" as competition in the AI agent sector intensifies. The new product is positioned to directly compete with Meta Muse in the emerging market for persistent AI companions. The company has already integrated the "o" brand mark into ChatGPT Pro product documentation, signaling an imminent official release. The assistant is expected to be unveiled at OpenAI's developer conference scheduled for Tuesday, September 29.