They swapped the tokenizer which either means a new pretrain, or token/weights surgery. The latter one seems more likely both because - economics: i'd wager a

They swapped the tokenizer which either means a new pretrain, or token/weights surgery. The latter one seems more likely both because - economics: i'd wager a bet that Opus 4.7 is just distilled Mythos Preview - performance: surgery like this would explain the spiky performance and weird issues just spitballing tho