I compared the writing style of Opus 5 vs Fable 5, and Opus 5 continues many of the "Claude-isms" of its 4.8 predecessor in a way that Fable broke away from.

Opus 5 still uses "carry the argument", "worth stating plainly", ", and the trap", "The X matters more", the use of "move"

We need an "annoying English" benchmark.

- Fable 5 Max: https://gist.github.com/deet/3d97f854b48eac6658d642fa18bb24d...

- Opus 5 Max: https://gist.github.com/deet/1a43693a732dfccb4d0d914bfc42692...

▲

DonsDiscountGas 2 minutes ago | parent | next [-]

I think a signature Claude style of writing is good since it makes it that much harder to pass off Claude written text as human.

▲

Kwpolska an hour ago | parent | prev | next [-]

Fable might be using those phrases less, but its writing is still terrible and exhausting to read.

▲

arizen an hour ago | parent [-]

Could these complex/hard to read Fable outputs be sign of some kind of industrial level of intelligence, which us humans may have a hard to comprehend, while it may be also hard for machine to use simpler texts to properly outline all nuances and complexities of concepts it output?

	▲	solenoid0937 13 minutes ago \| parent [-]
		Fable subagents communicate very effectively with one another, so this would be a reasonable take imo

▲

winwang an hour ago | parent | prev | next [-]

I found 4.6 more amenable than 4.8 to style directions, we'll see how 5.0 does. Super-small-sample-size: I think part of its "Claude-ism" style comes from its propensity to try and "proactively" move the conversation/work along. Not sure how this would fare in non-obviously-productive environments, I'd guess "it's still annoying" considering your evidence.

I'm also thinking of another benchmark: (quantified) stylistic range across different prompts. Just putting it out there if anyone wants to do the work for me :D

▲

ianberdin 2 hours ago | parent | prev [-]

I’m pretty sure Opus 5 is adapted to tricks from long reasoning in Kimi K3 and based on original Opus 4.8. It is not fable in any form.

	▲	duplessitous an hour ago \| parent [-]
		Seems unlikely they adapted anything from K3 given the timeline of releases, similar to how K3 was obviously not distilled from fable