Original Reddit post

This is just my opinion, and i’d love to hear other peoples opinion. My experience with Opus5 in VS has been a love/hate at this point. When it first came out it seemed very confident, and I was impressed by this. The honeymoon ends shortly thereafter where I notice Opus5 is so over confident it won’t even check to see if said work has been completed before, will even ignore it in prompting on occasion. I have an entire markdown of parts of the project that are done, where to reference things, a folder split into nice little convenient sections instead of huge instruction files. In contrast Fable 5 and Opus 4.8 both will tends to look back without prompting more often than not and say this has been done, let me reference this, then look through documentation and they can cleanly pick up or correct or add new sections based on it. Sometimes small things get missed, but database links, any connection that needs to be there has always been there. Opus5 on the other hand decided that my photo pool database for some reason didn’t exist and wrote a whole new photo database to live locally on my PC instead of on Firebase where it currently lives. I then called it out and it says “you’re right”. But the massive token waste already happened while I stepped away. The worst part is the instructions are there for Opus5 and it’s so confident or stupid, i’m not sure which, to just ignore them and think it knows better. Fable5 and Opus 4.8 rarely do this to this extreme and when they do they usually prompt and say “this isn’t done yet should we make it from scratch” and you say check the documentation, and they’ll do so. Sorry if this seems like a ramble. Either i’m doing something wrong with Opus5 vs Fable5 and Opus4.8 where I had no problem, or Opus5 really is just like an overly confident teenager doing things without checking on a single thing. Imagine someone trying to build an engine from scratch figuring everything out as if it’s never been done, meanwhile a fully assembled V8 with the instruction manual sits right next to you, mere inches from your face, but you can’t be bothered to look. That’s how I feel Opus 5 is. submitted by /u/CWStrife

Originally posted by u/CWStrife on r/ClaudeCode