I'm not aware of any screen reader that works by continuously feeding screenshots of user interfaces into a remote expensive image LLM, which is an absolutely insane and impractical idea for many reasons, but I used standard TalkBack on Android

That’s not exactly fast for people who need these tools though.

I can't code, I'll use an LLM to write one!

I can't use your app, I'll use an LLM to read it!

Slow and expensive. You’re just proposing yet another “disability tax”.