Don't use Claude Fable 5.2 at Max effort!!!
Artificial Analysis benchmark results:
High: 62 | $9.08/task | 17.7 min
XHigh: 62 | $14.83/task | 26.3 min
Max: 65 | $26.54/task | 46.4 min
Going from High to Max gets you just 3 more points, but costs nearly 3x as much and takes 2.6x as long.
For everyday coding, I'd start with High and save Max for the really hard tasks.
The highest setting isn't always worth it.