Maybe it is my bubble, but the experience people are having with Anthropic particularly is motivating a big “get this stuff back under control” effort so while it may not be strategically optimal for Cloudflare the local hosting would prove more valuable to enterprises than maybe a few years back, even if presented as a backup plan.
In the default configuration, you just plop your Anthropic/OpenAI/Gemini/Workers AI/ollama API keys into the UI and it talks to each provider directly.
That said, I would recommend AI Gateway, it has a lot of nice features. :)