"Opus 5 is a really bad model"

It honestly feels bugged. Had to ditch it and went back to Sonnet 5. And the token usage is SO bad, especially on Openclaw: yesterday it somehow fully burned a whole Pro session usage in 3 minutes (!!!) to expose an already built service on tailscale. Just how??

My experience with opus 5 has surfaced many of the complaints listed it the tweet. It seems to be slightly brighter than 4.8, but the laziness more than makes up for it.

Most of this seems to be related to harness issues, specifically prompts provided by Claude Code. The upside of this is that it is likely cheap and easy for Anthropic to fix the issues by revising their approach to prompting their new models.