Yes there is
It's just a whole lot more violent than you're imagining
And then hope nothing else ever evolves intelligence.
There's a voluminous amount of code and documentation on how to build and run LLMs. You can build your own chatgpt literally in a weekend and run it on a home server, based on publicly available models.
If OpenAI and Anthropic literally evaporated overnight, there would still be Chinese labs training and releasing new models.
Can you? Maybe if you can afford an AI powered social media bot farm. What a great technology.