The tech behind LLMs has been open source for a very long time. Look at DeepSeek and LLAMA for example. They aren’t yet as capable as say Gemini but they aren’t “miles behind” either, especially if you know how to tune the models to be purpose built[0].

The time horizons will be different as they always are, but I believe it will happen eventually.

I’d also argue that browsers got complicated pretty fast, long cry from libhtml in a few short years.

[0]: of which I contend most useful applications of this technology will not be the generalized ChatGPT interface but specialized highly tuned models that don’t need the scope of a generalized querying