we’ve got the benchmark graphs from the announcement, and i hear tepid opinions from people with gpt 5.6 access. fable is far ahead of gpt 5.5 (my prev daily driver) also. much less passive aggressive / overly defensive.
I'm not subscribed to either right now, but have always preferred the GPT "personality." It does what I tell it to, not what it imagines. With Claude I was constantly jamming the escape key -- "STOP THAT".
And 5.5 still ranks higher than Opus 4.8.