ChatGPT is to AI as Facebook is to social media. OpenAI captured a significant number of users due to first-mover advantage, but that advantage is long gone now.
The only way OpenAI can survive is to replicate this model. But it probably doesn't have the traffic to pull it off unless it can differentiate itself from the already crowded competition.
But the thing is, the world already has an AI search engine. It's called Google, and it's already heavily integrated with Gemini. Why would people switch?