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What it feels like to work with Mythos

https://www.oneusefulthing.org/p/what-it-feels-like-to-work-with-mythos
29•swolpers•1h ago

Comments

root_axis•1h ago
I just can't stand this type of fawning language.
asdK120•1h ago
Mollick runs the Generative AI Lab at Wharton, with all the corporate sponsors.

He is a professor but sadly also an AI shill. He should switch to advertising washing power.

MostlyStable•1h ago
So...no engagement with the substance? Not even to explain why it is that this is not a useful description or test of capabilities? Ok.
dthread3•1h ago
I would like to see it do something useful, like converting pytorch to golang.
fdsdfsdfzxczxc•1h ago
This newfangled car thing is useless. It can't even properly shoe a horse.
lijok•59m ago
Hot damn - is that the floor of what you consider useful?
cadamsdotcom•24m ago
Why not get a plan from Anthropic and get that done yourself? Probably is going to cost you as much as a coffee.
whyenot•1h ago
Instead of attacking the author, please respond to the content of the article. That is the HN way, and it leads to more substantive and interesting discussions.
et-al•1h ago
Given the timing, this is very likely a submarine article. Or as the kids call it these days: sponcon.

https://www.paulgraham.com/submarine.html

0x1ceb00da•1h ago
"I don't care who the IRS sends I am not paying taxes!"
astrange•1h ago
It is not a sponsored article and he writes one of these every time a new model releases. Why would a professor at Wharton need to write sponsored Substack articles.
382hi•1h ago
I think Qwen 3.7-Plus is better at reasoning than Mythos, and I've used both for quite a while.
the_doctah•1h ago
More Mythos Marketing.
gopalv•1h ago
> It worked for nine and a half hours.

> Again, it wasn’t perfect. As an expert, I was able to spot some errors and omissions (some as a result of the design I had asked for) that I had the AI correct

That's the bit that stuck out to me - that's longer than I would expect to work on a problem in a day or even expect to go back & fix the output of something that has a core reward loop of hours.

My customers are currently clamoring to push down my agent response times from 85 seconds down to below the 20s mark.

At the same time, it is very dissonant to see the industry heading towards hour+ long workflows with an agent.

matneyx•1h ago
In Claude's defense (and I cannot believe I'm defending it), I know no single dev who could create what it did (Concord), from a 19-page design document, in 9.5 working hours.

We're gonna go back to the days where our bosses ask why we're just sitting around, but instead of saying "compiling," we'll just say, "waiting for Claude."

neogodless•1h ago
For the rare uninitiated:

https://xkcd.com/303/

PeterStuer•1h ago
My Opus 4.8 regularly works for 10+minutes on a single non-trivial coding request.
ASalazarMX•19m ago
Your Opus 4.8? Is it now usual to refer to LLMs like that?
recursivedoubts•50m ago
would it be possible for mythos to make the space bar scroll the pages on your website properly?
hedgehog•1h ago
Work duration is also not that valuable of a measure, you're usually better off defining the process yourself in code and having that delegate chunks of work to the models. The only real issue there is that it's harder to take advantage of the providers' subscription discounts, but on the other hand it's easier to do your own model routing, and there's no way I've seen for the normal chatbots to maintain coherence on streams of work measured in days and weeks.

Claude Fable 5

https://www.anthropic.com/news/claude-fable-5-mythos-5
904•Philpax•2h ago•644 comments

Apple decided not to roll out Siri in EU after denied request for exemption

https://www.reuters.com/business/apple-failed-make-its-ai-tool-comply-eu-regulations-eu-commissio...
233•flanged•2h ago•367 comments

System Card: Claude Fable 5 and Claude Mythos 5 [pdf]

https://www-cdn.anthropic.com/d00db56fa754a1b115b6dd7cb2e3c342ee809620.pdf
204•scrlk•2h ago•83 comments

Making Graphics Like it's 1993

https://staniks.github.io/articles/catlantean-3d-blog-1/
577•sklopec•8h ago•97 comments

A giant star may have destroyed itself in one of the rarest explosions

https://phys.org/news/2026-05-giant-star-destroyed-universe-rarest.html
78•wglb•22h ago•13 comments

Microsoft's open source tools were hacked to steal passwords of AI developers

https://techcrunch.com/2026/06/08/microsofts-open-source-tools-were-hacked-to-steal-passwords-of-...
470•raffael_de•11h ago•166 comments

Brexit Ten Years On: The Economy

https://ukandeu.ac.uk/brexit-ten-years-on-the-economy/
14•mooreds•14m ago•3 comments

Ask HN: Are you still using your Vision Pro?

28•y1n0•24m ago•17 comments

The LD_DEBUG environment variable (2012)

https://bnikolic.co.uk/blog/linux-ld-debug.html
17•tanelpoder•1h ago•0 comments

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https://opencv.org/opencv-5/
578•ternaus•3d ago•106 comments

Can LLMs Beat Classical Hyperparameter Optimization Algorithms?

https://arxiv.org/abs/2603.24647
71•galsapir•4h ago•10 comments

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https://letsencrypt.org/documents/LE-SA-v1.7-June-04-2026-diff.pdf
164•piskov•20h ago•118 comments

The iPhone's Last Stand?

https://stratechery.com/2026/the-iphones-last-stand/
132•swolpers•9h ago•169 comments

Rayforce

https://github.com/RayforceDB/rayforce
14•tosh•3d ago•1 comments

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https://github.com/luke8086/gentleos32
55•luke8086•2d ago•80 comments

Emerge Career (YC S22) Is Hiring a Founding Growth Marketer

https://www.ycombinator.com/companies/emerge-career/jobs/v0S1AEG-founding-growth-marketer
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102•qunabu•7h ago•23 comments

Unified Controllable and Faithful Text-to-CAD Generation with LLMs

https://arxiv.org/abs/2604.19773
43•PaulHoule•5h ago•11 comments

Forever Young: how one molecule can lock plants in a youthful state (2025)

https://omnia.sas.upenn.edu/story/biologist-scott-poethig-plants-never-age
109•bryanrasmussen•10h ago•63 comments

Show HN: Learn from 30 historical figures, open source, nonprofit, self-hosted

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19•micstradev•7h ago•9 comments

Using Optical Aberrations to Distinguish Real Astronomical Transients

https://arxiv.org/abs/2606.08319
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https://thi.ng
166•nmstoker•1d ago•25 comments

Cleaning up after AI rockstar developers

https://www.codingwithjesse.com/blog/rockstar-developers/
388•BrunoBernardino•10h ago•291 comments

An introduction to functional analysis for science and engineering

https://arxiv.org/abs/1904.02539
103•Anon84•2d ago•14 comments