[g42gregory]

I am using Opis 4.8 xhigh, in OMP.sh coding agent (full agent built on Pi), with Matt Pocock Skills installed.

I don’t see a particular bump in code quality from Fable 5. In fact, it feels less reliable to me than my current setup. No sure why I am not seeing what everybody else is seeing.

Perhaps OMP/Pi (head and shoulders better than Claude Code) + Matt Pocock Skills already encode all the agentic improvements Fable has?

[aenis]

Opus 4.8 xhigh is my daily driver for everything. I'd say Fable's edge is visible when designing for a complex problem with no obvious, idiomatic solutions. It is good at greenfield designs, and good at pointing out the pros and cons of hard design choices. I now do designs with Fable, and do implementations off those designs with Opus. Pretty happy. For a while I was using Fable for everything, but burned through a lot of real money for not much value, I think for coding its slow and not at all better than Opus.

[mavamaarten]

I had the same sentiment. In my limited testing, it didn't perform any better than Opus at all. It wasn't a particularly challenging taskset either, mostly just "add this simple feature" with plenty of context and very clearly defined scope. It worked functionally but there were much better and simpler approaches available. For the cost, I don't see how Fable can ever be worth it.