> They chose to use a react rendering to native TUI renderer, which was a source of a lot of performance issues.

The source of the performance issue here is their own incompetence, actually. I have never in my entire career heard of a rendering pipeline as idiotic as the custom one they built.

>AFAIK, they have written a new renderer.

Which is equally terrible and has earned them every single rendering engineer in the world taking the piss out of them when they proudly announced it was as complicated as rendering a video game.

> They chose to use a react rendering to native TUI renderer, which was a source of a lot of performance issues.

That's such a stupid engineering choice that it really makes one question if the people working at Anthropic have any software engineering ability at all. There's no excuse for running React in a freaking TUI.