[tmaly]

I see a lot of complaints on X about 4.7. Boris just dropped a post on how to use Opus 4.7 in Claude Code.

I guess they broke continuity with a 0.1 in model version change in some ways.

[merlindru]

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