This summarizes my experience with GPT-5.5 (left) vs. Fable (right)
Even if GPT-5.5 can pass tests, its solution is almost always excessively verbose and it doesn't find the minimal one
One thing you get for free moving to Base UI from Radix is speed.
I benchmarked the areas that most affect perf (opening a dialog on a big page, mounting lots of selects, opening big menus, sweeping over menu items etc.)
In each of the six scenarios, Base UI was the fastest.
Starting today, we are making @base_ui the default component library in shadcn/ui.
First, a bit of history. When shadcn/ui launched in 2023, it was built on Radix. At the time, nothing else came close. Headless. Accessible. Composable.
Fast forward a few years and the team who
Fable was great at code reviews
I compared 4 models on the quality of their reviews of a complex React component (same prompt for each). Was nice while it lasted...
Even still, they each found something the others didn’t
The @base_ui Combobox is looking to ship as multiple different components:
1. Combobox
2. Autocomplete
3. FilterableMenu
Some of the components you can build with these:
