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Claude Fable 5.1 and Claude Mythos 5.1

anthropic.com

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Re: Claude Fable 5.1 and Claude Mythos 5.1

#981

Post by sterlind »

kbrannigan wrote: post #426
EliasWatson wrote: post #308

To be honest, these frontier model releases have become boring for me. Opus 4.8 was already good enough for most of my use cases. I don't have any projects right now that I would use Fable for instead of Opus. So when I see announcements like this I just think "that's cool I guess" and then go back to using weaker/cheaper models. What's far more exciting right now is models like DeepSeek V4 Flash and GLM 5.3 Flash. T…

The human brain is fascinating Three years ago The idea of having A robot writing production level code in 10 minutes that would have needed a team of 5 people and 2 months. Was pure Scifi Now it's boring , not good enough Wow there should be a term of that .

It's like a form of magical realism. AI feels like straight up magic, like discovering a genie that grants wishes, but we all have bills to pay and projects to do so weeks later there's a magic lantern on every desk and the genie's doing grandma's taxes and wishing he'd stayed in the bottle.

Re: Claude Fable 5.1 and Claude Mythos 5.1

#982

Post by ozozozd »

Razengan wrote: post #806
exabrial wrote: post #419

Anyone ever seen the SouthPark episode making fun of Game of Thrones: A Song of Ass and Fire? Anthropic's announcements reminds me of "The Dragons Are Coming" running joke. What they have done: * Nerfed Fable, as many of noted it's useless * Leverage Mythos as a marketing strategy, claiming its too good to release * Removed thought traces, one of the only useful things to make sure your prompts are working correctly…

Not to mention, the last time I tried them, and per the comments of other users: * Letting you Sign-Up-with-Apple on iOS but not Sign-In-with-Apple on web, but supporting Sign-In-with-Google * Not letting you remove your payment info * Not letting you change your email * Seemingly no way to get real support

I was going to compare to Uber, but realized this would be unfair to Uber.

Also, couldn’t quite decide whether this is malice or incompetence.

Re: Claude Fable 5.1 and Claude Mythos 5.1

#983

Post by mrheosuper »

azuanrb wrote: post #565
Zigurd wrote: post #365

What I don't see in the comments: "I had a specific problem I couldn't solve with the previous version of this LLM. But the improvements in this version unlocked the solution for me." What I do see in the comments: subjective improvement in text generation, possibly lower cost, some optimism about code generation, but some skepticism too. I use coding agents. To me they are very useful. But what I spend on them isn't…

We rarely upgrade our phones or MacBooks because the newer version can do something the previous one literally couldn’t. Often it’s the efficiency, speed, battery life, etc, combined, that lets us push the hardware further. I get your point, but we can only have groundbreaking leaps once in a blue moon. That doesn’t mean incremental improvements aren’t useful.

Interesting, back in the day, I upgraded my phone because the new one can do something that the old one can't.

I upgrade from dumb brick phone to 3G-capable nokia, then to touch screen smartphone, then touchscreen with LTE, then one with fingerprint sensor, etc.

And just when the smartphone begins running out of stuff to add, i also slow down my upgrade cycle.

So, i guess after 5 years in LLM, we are at the end of the curve

Re: Claude Fable 5.1 and Claude Mythos 5.1

#984

Post by gitaarik »

precision1k wrote: post #87
tarr11 wrote: post #35

“ Claude Fable 5.1's writing is generally a step up from earlier Claude models, with fewer stock phrases and less unexplained jargon. In some cases, though, its prose is denser than Claude Fable 5's: sentences run longer and there are fewer paragraph breaks.” I cancelled my pro max Claude subscription last week; codex is much more succinct. I am curious if this is getting better. I don’t think Anthropic realizes that…

I've developed a habit of adding into my prompts "please keep your response concise and succinct" or "I'm trying to cram, please only provide the minimum level of technical detail necessary to understand this topic" I find it helps immensely but it'd be nice if I didn't have to do that.

Or "be brief and simple"

Re: Claude Fable 5.1 and Claude Mythos 5.1

#985

Post by aennassiri »

anthonyrstevens wrote: post #645
Bluestein wrote: post #28

Unless these people start offering free, unlimited inference for a cautionary period so we can test the new model without an up-front (re-)investment, I am not touching this load-bearing pile of neuralese spew with a ten thousand token pole.-

Are you going to post the same comment on every AI article on HN? How is this useful to the discussion?

You tend to take a rather aggressive approach when commenting in here.

Re: Claude Fable 5.1 and Claude Mythos 5.1

#986

Post by twhitmore »

I liked Fable 5, as it didn't gabble like Opus did. It was good at clarity & conciseness.

Fable 5.1 -- to my early impressions -- seems to have gone backwards again.

Opus 4.8 was terrible for babbling self-invented jargon. (But still better than other options at the time for coding and logic.)

Re: Claude Fable 5.1 and Claude Mythos 5.1

#990

Post by xcafebabe »

felixrieseberg wrote: post #69

(I work at Anthropic) Beyond all the benchmarks, I think Fable 5.1 is a big improvement in writing style. It sounds a lot less stereotypically like other Claude models, has (imho) a much more natural style, and responds to my style instructions more reliably. More work to be done (and we will!) but reading better prose makes me so much happier. Another point I expect not to get much attention until it all happens at…

please extend the +50% promotion xD
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