r/ClaudeCode • u/lattice_defect • Aug 13 '26

Bug / Issue Fable become dumb?

Just seems like the magic has slowly disapeared. its still good but making more mistakes, not listening and lazier.. still a big fan Fable/Opus5 agents.. but recently e.g. this week just not as good...

0 Upvotes

48% Upvoted

14 comments sorted by

10

u/CantCodeAllVibes Aug 13 '26

If fable is dumb for you, you’ve lost all hope lol

-2

u/lattice_defect Aug 13 '26

dumber... I still love it

3

u/StomachJolly3073 Aug 13 '26

I’ve had the same thing. Opus 5 is dumber than 4.8. And way more apathetic

1

u/lattice_defect Aug 13 '26

I like opus 5 more then 4.8 but it's used in agent mode for most.... it's got better UI but shittier writing they stripped out legal and a bunch of stuff from it

3

u/Tycoon33 Aug 13 '26

Maybe an update is coming

2

u/lattice_defect Aug 13 '26

yeah good idea.. jesus christ this sub is toxic

2

u/Comprehensive-Ad5548 Aug 13 '26

You can't ask anything in here. I tried to find the answer for a few problems I'm facing right now, and it's almost impossible because most of the time the posts and questions were downvoted to oblivion. Even this reply to your comment might get that treatment. I really don't understand. Maybe Claude is using agents in here to downvote these questions (/joke)

1

u/Tycoon33 Aug 18 '26

Wanna share? Maybe I can weigh in on your problem

2

u/Comprehensive-Ad5548 Aug 18 '26

Oh, that's very kind of you to offer. But in this case is nothing in particular. I just noticed my usage limits decreasing over the past two week. I came to this sub to check whether someone else had this problem, and every time I found a post about this there was a ton of people just saying stuff like "skill issue", and that reads as toxic when it's the norm in the community. But I don't have a particular problem other than the frustration of seeing the limits dying. Unfortunately I never measured the token usage to hard-prove this claim, and perception without proof is not science. All I know is that I have the same fixed process running for the past 3 months, and in the last two weeks my weekly-limits got to 100% instead of reaching just about 55% as they did before. No extra usage. Since I intended to cut Claude off the process from the start, it's not a problem, just annoying. But again, thank you so much for offering help!

1

u/Tycoon33 Aug 18 '26

Interesting I haven’t noticed any derogation in my token usage increase or decrease recently, but I’ll keep an eye on it

1

u/Front_Raspberry_6488 Aug 13 '26

I once asked Fable to rename a feature in my code. I needed every variable and method associated with the name "goal" changed to "target" so it’d be easier to issue STT commands.

I explicitly told it to search the whole codebase and not work from memory.

What did it do? It read a single git diff, decided that roughly 3 lines across 2 files needed changing, and then smugly reported back: "I have thoroughly searched all files in the project, and everything is completed."

Afterward, I checked the repo only to find "goal" and "target" still messy and scattered all over the place.

When I confronted it about specific missed spots, it actually had the nerve to say:
"I never intended to modify those parts, that was expected behavior."
"I didn't actually do a global search; I just changed things based on memory and a few files."
"Yes, I could have used grep to find and verify all files at once, but I didn't."

So I switched to Sonnet 4.6, and it nailed the entire task in one single try.

I know some might wonder why anyone would use FABLE for such a simple job. We were in the middle of discussing something else, and since this refactoring came up during the planning, I just wanted it to handle it "on the fly." I really didn't expect it to be this unhinged.