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Claude Fable 5

anthropic.com

611–620 of 1001 posts

Re: Claude Fable 5

#611

It's funny, i'm getting close to not caring anymore how much better a model is. I want it to be about as good as 4.8, but most importantly to be very good at following directions, style, etc. I really like Claude for that in general, but i've not measured in months so i'm not a good judge there. I don't think i'll want to "hand off" code for several years, and so reviewing and iterating is becoming my #1 interest. A…

I want the and same intelligence but way faster. It's so painfully slow.

Re: Claude Fable 5

#613

I've been testing this out and I think my SWE career is dead in the water. Genuinely wondering what value I bring to my employer right now. What value I will bring in a few months when this gets cheaper. I think we're screwed. I may only be an SDE 2 at FAANG but I don't think I have promotion opportunities in my future anymore.

You do realize that this is likely a 10 trillion parameter model that takes something like 20 terabytes of RAM to run inference? Calculate the price for all this VRAM .... It's not getting cheaper in the next few "months".

Re: Claude Fable 5

#614

> In light of the ability of recent models to accelerate their own development, we’ve implemented new interventions that limit Claude’s effectiveness for requests targeting frontier LLM development (for example, on building pretraining pipelines, distributed training infrastructure, or ML accelerator design). Using Claude to develop competing models already violates our Terms of Service, but enforcing this restrictio…

Pull that ladder up behind ya, will ya son?

Re: Claude Fable 5

#615
post #46

Pelican for Fable 5 on default settings is a clear improvement on Opus 4.8 Fable 5 default: https://gist.github.com/simonw/036bee5a703e7ec84e34efa974438... Opus 4.8 (the "max" one is closest to Fable): https://simonwillison.net/2026/May/28/claude-opus-4-8/#and-s... Now here are the Fable pelicans for all five of the thinking effort levels - low, medium, high, xhigh, max: https://tools.simonwillison.net/markdown-svg-r…

dude, the max version looks like it's finally there. handle bar holding with wings, the left leg is behind the frame while the right is in front of it (correctly).

well done anthropic.

Re: Claude Fable 5

#617
post #534

I've spent enough time with this now in Claude Code (and Claude.ai and Claude Code for web) to have an opinion on Fable 5: it's a beast. I'm throwing some VERY difficult problems at at - things I've been dragging my heels on for months - and it's crunching through them very happily. One that I'm willing to share (albeit from just a week ago) - I built a Python library last week that bundles MicroPython compiled to WA…

Still does not crack my hardest nuts. Gave it one of them and it blew through my entire allowance on thinking about one question, with no apparent answer in sight!

I see a lot of people saying they are happy with weaker models, but I am the opposite, I need more strength, more intelligence!

I am quite happy that opus 4.8 can do some medium intelligence problems. And maybe Fable 5 can do some more more of those! I have a lot of problems to solve!

Re: Claude Fable 5

#618
Cursor users will note that the privacy setting and data retention is not the same as the other models.

Not sure I should use this for work just yet.

Re: Claude Fable 5

#619
post #258

On this thread and similar, I'm noticing that some strong opinions about $LLM_PROVIDER are coming from accounts without much post history. With so much on the line, and the way that HN can influence developer behavior, I wonder what ways we can responsibly consume opinions in a thread like this. Not to cast too much criticism. HN is extremely well-moderated (thanks team!). But think we-developers need to be very wary…

Personally I think you have to form your opinion and not trust anyone.

This requires a lot of mental strength and conviction.

Re: Claude Fable 5

#620

I'm happy not using llms because I like learning things and working hard. I love writing code, it's genuinely my favorite thing thing to do. Using llms is the equivalent of driving to the store that's 3 blocks away, just like how that's bad for your body (if done all the time), using llms is as bad for your brain. Before LLMs, we started relying on certain technologies like Maps apps to navigate, now people can't eve…

> I'm happy not using llms because I like learning things and working hard. I love writing code, it's genuinely my favorite thing thing to do.

You can continue doing that. The problem here is time and cost. If you can use the calculator to do something in seconds, why would you want to use your hands to do the calculations for minutes/hours.

> Using llms is the equivalent of driving to the store that's 3 blocks away, just like how that's bad for your body (if done all the time), using llms is as bad for your brain.

And coding will soon be the equivalent of walking between two cities because you don't want to use a car (LLM). You are free to do it, its just economically not sound anymore.

> This is seriously the biggest trap by tech. Your bargaining power for your labor is going to get drastically reduced because you won't be able to differentiate your value from anyone else that has access to an LLM. What happens when everyone has the same skill level for certain work?

Its not our values that will diminish, its the cost of our intelligence, human intelligence. But I agree with the rest of your comment.

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