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We stopped AI bot spam in our GitHub repo using Git's –author flag

https://archestra.ai/blog/only-responsible-ai
63•ildari•38m ago•12 comments

Show HN: Files.md – Open-source alternative to Obsidian

https://github.com/zakirullin/files.md
222•zakirullin•2h ago•130 comments

1024000^2 Blocks, 2B2T Minecraft Server World Download Project, and Discoveries

https://github.com/2b2tplace/1m_release
52•exploraz•1h ago•27 comments

Project Glasswing: what Mythos showed us

https://blog.cloudflare.com/cyber-frontier-models/
58•Fysi•2h ago•11 comments

The Quiet Renovation at Bitwarden

https://blog.ppb1701.com/the-quiet-renovation-at-bitwarden
85•DaSHacka•1d ago•43 comments

Voice AI Systems Are Vulnerable to Hidden Audio Attacks

https://spectrum.ieee.org/voice-ai-audio-attacks
25•SVI•4h ago•3 comments

'We mould trees to grow into the shape of chairs'

https://www.bbc.co.uk/news/articles/cvg0yy3gp71o
114•bauc•3h ago•32 comments

The Aperiodic Table

https://blog.jgc.org/2026/05/the-aperiodic-table.html
45•jgrahamc•2d ago•12 comments

Linux security mailing list 'almost unmanageable'

https://www.theregister.com/security/2026/05/18/linus-torvalds-says-ai-powered-bug-hunters-have-m...
124•jonbaer•3h ago•57 comments

Math Jokes in Alice in Wonderland

https://storica.club/blog/alice-is-math-jokes/
81•yekbun123•4d ago•39 comments

Actually, Democracy Dies in H.R.

https://www.nytimes.com/2026/05/18/world/americas/actually-democracy-dies-in-hr.html
105•mitchbob•1h ago•50 comments

Porting my 3D points renderer on a ZX Spectrum 48K

https://github.com/ttsiodras/3D-on-a-ZX-Spectrum-48K/
55•ttsiodras•1d ago•7 comments

It is time to give up the dualism introduced by the debate on consciousness

https://www.noemamag.com/there-is-no-hard-problem-of-consciousness/
209•ahalbert4•13h ago•524 comments

GenCAD

https://gencad.github.io/
398•dagenix•18h ago•107 comments

Enough with the AI FOMO, go slow-mo, says Domo CDO

https://www.theregister.com/ai-ml/2026/05/17/enough-with-the-ai-fomo-go-slow-mo-says-domo-cdo/524...
103•Bender•3h ago•49 comments

Show HN: Auto-identity-remove – Automated data broker opt-out runner for macOS

https://github.com/stephenlthorn/auto-identity-remove
295•stephenlthorn•4h ago•115 comments

When Kierkegaard Got Cancelled

https://www.plough.com/en/topics/faith/discipleship/when-kierkegaard-got-cancelled
19•bookofjoe•3h ago•5 comments

The foundations of a provably secure operating system (PSOS) (1979) [pdf]

http://www.csl.sri.com/users/neumann/psos.pdf
83•rurban•6h ago•49 comments

What Is Date:Italy?

http://aesthetikx.info/blog/date_italy.html
3•jollyjerry•1d ago•0 comments

Crystals found inside wreckage from the first nuclear bomb test

https://www.scientificamerican.com/article/strange-crystals-found-inside-wreckage-from-the-first-...
137•jumploops•2d ago•61 comments

I turned a $80 RK3562 Android tablet into a Debian Linux workstation

https://github.com/tech4bot/rk3562deb
416•tech4bot•1d ago•211 comments

Don't answer the first question

https://lalitm.com/post/dont-answer-the-first-question/
38•lalitmaganti•6h ago•26 comments

What “Amazon Supply Chain Services” Tells Us About What Amazon Is

https://gadallon.substack.com/p/the-third-time-amazon-did-this-what
12•JumpCrisscross•57m ago•2 comments

AI eats the world (Spring 26) [pdf]

https://static1.squarespace.com/static/50363cf324ac8e905e7df861/t/6a0af5d0484fbf5fe9a7743e/177910...
127•topherjaynes•3h ago•72 comments

Ask an Astronaut: 333 hours of Q&A footage with astronauts

https://askanastronaut.issinrealtime.org/
183•gaws•2d ago•22 comments

Show HN: Semble – Code search for agents that uses 98% fewer tokens than grep

https://github.com/MinishLab/semble
399•Bibabomas•1d ago•134 comments

Jank now has its own custom IR

https://jank-lang.org/blog/2026-05-08-optimization/
192•DASD•2d ago•36 comments

Build a Radio Wave Detector with Balls of Aluminum Foil

https://www.wired.com/story/build-a-radio-wave-detector-with-balls-of-aluminum-foil/
47•Brajeshwar•2d ago•16 comments

NASA still maintains some of the Voyager spacecraft code from the 70s era

https://spacedaily.com/nasa-still-maintains-some-of-the-voyager-spacecraft-code-in-a-1970s-era-pr...
59•redbell•5h ago•59 comments

I'm a Normie. Can Normies Vibe Code?

https://www.wired.com/story/normie-vibe-code/
8•ent101•1h ago•3 comments
Open in hackernews

Building an agentic image generator that improves itself

https://simulate.trybezel.com/research/image_agent
67•palashshah•12mo ago
Hey HN! We recently graduated from YC, and have been building customer personas for large e-commerce companies. We recently expanded into the image generation space, and have been working on research about how to automatically improve the quality of generated images.

Comments

average_r_user•12mo ago
Quite interesting, do you have some documentation of your platform and capabilities? Your landing page is quite synthetic
palashshah•12mo ago
hey! we're working with an initial set of customers, and plan to launch full capabilities soon. stay tuned :)
ramesh31•12mo ago
This is a wonderful writeup of building a simple agentic system in general. What OP describes is more or less the bare minimum you should be doing at this point to get good (consistent) results from an LLM; single-shot prompting is a thing of the past.
palashshah•12mo ago
appreciate the compliment! yep, it's definitely necessary and is the bare minimum for building image generation systems in production.
shmoogy•12mo ago
I'm surprised you landed on using o3 as the judge - we found it way too expensive. I use llm as a judge for generating color variations of products, definitely hoping for some improvements - it can be brutal to get non hallucinated features along with proper final rendering.
omneity•12mo ago
Have you tried open weights vision models such as Qwen VL, MiniCPM, PaliGemma...?

I'm also curious how usable are simpler vision models such as Florence in case you explored this direction.

palashshah•12mo ago
we're currently in the process of doing this. i think something that could potentially work is to iterate upon the initial image composition / structure using cheaper models, and then upscale at the end. this way you're saving on that iteration cost, but eventually land on a higher-scale image.
shmoogy•11mo ago
I actually haven't but nova from Amazon was surprisingly good at things like bounding boxes compared to some others You kind of have to test and measure so many different aspects to get the best at specific tasks Thanks for the idea
elif•12mo ago
This is great and provides a good starting point for any similar efforts.

However I think the temptation to lean all tasks on AI is perhaps a little naive if not lazy.

For mask generation, there is really not much reason to use AI. In this example, simple stochastic blob detection, a trivial function you could get from openCV or ask a college sophomore to write would generate much better quality masks.

palashshah•12mo ago
totally agreed here. i think my goal primarily with the mask generation was to test out how effective openai's capabilities were.

we're currently working on pipelines that limit the the involvement of AI to various tasks. for example, when generating an ad there's usually logo, some banner text, and background image.

we can use gpt-image-1 to generate the background image, another LLM to identify the coordinates of where we place the logo, and just add the logo onto the image. this is just one example!

jackphilson•12mo ago
Why do you agree? I think we should outsource as much as we can to abstraction. We've been doing it forever.
dandelany•12mo ago
"Simple stochastic blob detection" is an abstraction. You write (or import) a function where the the gnarly logic lives and call `detectBlobs()`. "Use an abstraction" doesn't mean you should use the same abstraction for every task, you should use the right tool for the job.
mentalgear•12mo ago
Again another example of "the unreasonable effectiveness of LLMs in a loop". At with time, the tasks for loop become bigger and more complex, until we find ourselves "outlooped" at least job wise.
ramoz•12mo ago
Nice retrospective but I guess this process is no longer needed as model's get better; esp as they start enabling features like consistent subjects. Seems like a lot of overhead to correct text for inspirational images, but I can imagine you need to always present some form of _quality_ to your clients.

Feel like control nets and some minimal photoshop work would've been better.

palashshah•12mo ago
totally. it got to a point where most of the text generated in our images was incorrect, and so it wasn't a great look showing that to our clients.

we're actually working on some form of what you described where we take images generated from LLMs + add consistent logos discretely rather than generatively.

abshkbh•12mo ago
Palash this is a great post, I learnt a lot as an image gen noob! Keep writing more :)
palashshah•12mo ago
this is incredible to hear! i plan to keep writing on a weekly basis, and will be posting them on twitter.
t_mann•12mo ago
I was kind of hoping this would be in the 'Dreambooth mold' of finetuning open weights models. I have used that with some success some ~2 years ago, does anyone know what improvements there have been in that direction since Dreambooth?
zahlman•12mo ago
It's frankly amazing to me that "ask another LLM to evaluate the image" actually produces useful feedback that results in actual improvement from the first LLM.

But then, I guess it's not much different of an idea from the earlier use of GANs, or of telling LLMs to "stop hallucinating", etc.

palashshah•12mo ago
totally. the way i think about it (purely based on intuition) is that asking an LLM to do understanding + image generation is too complex for it to be effective. if we separate out the tasks into discrete steps, the evaluation becomes better, and the generation simply becomes instruction following.
jacob019•12mo ago
This is all edited with gpt-image-1? The revised images are amazing. Were example logos provided or is it just working off of it's knowledge of a well known brand?