YHK - yet another hacker news clone

You can optimize a model by randomly changing its weights and validating results on your task. A monkey can type a book given enough attempts.

Chances are much higher than a model can figure out what the patterns are, decipher them, and retain that knowledge in a meaningful way it can reason about. Me and you might take years or months to do all of that on our own, with a "map" of the weight we might be able to discuss it, but not as effortlessly as an LLM.

Honestly, I had told a few different colleagues that reading a model is probably not that exclusive to frontier models. It's probably yet another reason OpenAI / Anthropic don't release any big open weight models, but thankfully Google and Microsoft release reasonably sized models. Imagine a new GPT open weight release, it would get dissected drastically.

Isn't that what this whole technology paradigm is about? How is it surprising?

Granted, it is cool. But I see so much of "look at this cool thing I did with LLMs" and honestly... we need more structured text, more explicit documentation, more ergonomic and intuitive CRUD applications.

The amount of "look at cool things" is growing way faster than before and they are all sort of low effort now because the "agentic" LLM-VM looping apparatus can do a lot of heavy lifting and run with our prompts.

And I mean, if one has jargon, knowledge, and intention, they can also leverage that into great structured text, ergonomic and intuitive CRUD apps etc, all of which add great value to our mundane pursuits of applied research, software products and services and so on.

Honestly, I begin to think the problem is people dazzling themselves instead of doing the housekeeping that is the bulk of life. Technology choice is entirely secondary.

  > the 2x2 pixel grid that the input pixel should be replaced for a (width2)x(height2) upscale.

I called it a paper here because it's by people with an academic affiliation and is of comparable quality (if not better than) many of the other "papers" we see.

I also like it when a paper isn't a PDF. PDFs are a bad way of communicating information.

(I will note that the authors themselves didn't call it a paper, their own BibTeX reference calls it a "blog post":)

  @misc{takehi2026weightspace,
    title        = {{Sparks of Weight-Space Programming: LLMs can natively read \& write neural network weights}},
    author       = {Takehi, Rikiya and Teoh, Jayden and Zhang, Alex and Khattab, Omar},
    year         = {2026},
    month        = nov,
    howpublished = {\url{https://rikiyat.github.io/blog/weight-space-programming/}},
    note         = {Blog post}
  }

Essentially, my training introduced knowledge and structure which wasn't translating into results. I tried training in a few different ways, different ranks, different things, and I wasn't making any progress.

With weight editing, a larger model was able to eliminate some undesirable pathways which the model was often using. Without going into the nitty-gritty, it basically took my best LoRa checkpoint and gave it the skills that I was unable to get with further training.

I think your use case of incorporating novel data probably calls for training, but I'm sure there are use cases where you can tweak the weights to get what you want (say I wanted to tweak the model to be less sycophantic, or found a way to shrink it by removing weights associated with a language that I don't ever use)

My first reaction to your question (rhetorical?) was uncharitable... so, I am curious what you meant that it was "easy."