This past month with Claude Max 5x actually felt really generous in terms of usage with a lot of resets because of Fable, bugs.
Honestly pretty similar levels of usage if you are using 5.5 high or Opus 4.8 high.
I think they just got rid of the separate Sonnet usage on Max plans (in preparation for Sonnet 5?) which is unfortunate because it made subagent workflows really feels nearly unlimited.
Is 5.5 high the equivalent of opus 4.8 high though? I thought the naming has diverged and gpt 5.5 high = opus 4.8 max
The newest GPT (not public yet) just added a max option too.