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rfw300

1,198 karma · joined May 30, 2020

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rfw300··on Gemini 4 Carbon
Google offers Anthropic models hosted on GCP through their Agent Platform (fka Vertex AI) - presumably any internal Anthropic use never crosses the Google boundary.
rfw300··on Revealing the details of how OpenAI agents hacked Hugging Face
My understanding from this report is that the zero-day vulnerability the agents exploited within Artifactory only allowed for GET requests. So the agents used this bankshot HTML sandbox + screenshot site to turn GET requests into arbitrary HTTP request ability.

One thing the report leaves unexplained, but is curious to me, is that the agents were able to create links on a shortening service with only GET requests? Or did they bootstrap into that by first creating a sufficiently small program on the HTML sandbox that could POST to the link shortener?

rfw300··on Jev in 25 Lines of Python
I think it's like saying Jev has been trumpeting the invention of a spinning transportation system when we've known such things as a "wheel" for thousands of years. Classification models have been with us far longer than autoregressive LLMs.
rfw300··on Cloud Agents Are Inevitable AI Prisons
That is a path to the open internet, whether intended or not.
rfw300··on GPT-6 Astra
Is this human-written? Axiom Math is a company building AI theorem provers, one would think this would also be heavily AI-generated.
rfw300··on Nvidia agrees to acquire Hugging Face for $13B
Cloudflare R2 has free egress only until Cloudflare’s enterprise sales team sets its sights on your wallet :)
rfw300··on Felony Bench
The way that OpenAI has communicated around the HuggingFace incident makes me feel crazy. You created a machine that undertook a malicious campaign of harm against an innocent third-party! You should be doing deep introspection about how your company culture and approach to R&D produces criminal outcomes.

Instead, they treat their own felonious behavior like it is an uncontrollable act of God. From Greg Brockman's post a few days ago:

> The OpenAI-Hugging Face incident (opens in a new window) was a watershed moment for cybersecurity because it gave a peek into how the capabilities of a typical threat actor will evolve in upcoming months.

I suppose if OpenAI burns someone's house down with a drone, that is a "watershed moment" for arson, too. Either way, I would hope that the people responsible would be prosecuted.

rfw300··on TigerBeetle Core System Architecture: Deconstructing Performance Engineering
How has AI changed the way that TigerBeetle does software engineering? Given the project’s idiosyncratic language/memory allocation choices, it’s an interesting data point how well the frontier models work for you guys.
rfw300··on South Korea to spend $1T on more memory chip production and humanoid robots
Germany’s austerity policy after 2008 may be one of the largest economic blunders in history. It would be one thing if they merely committed self-harm, but they also used their pull in the EU to drag the rest of the continent down with them.

Reminded of Matt Yglesias’s excellent headline from 2010: Angela Merkel Lucky the Bar for “Worst German Leader” is Very High

rfw300··on Claude Fable is relentlessly proactive
> if a malicious actor can weaponize an agent to do their bidding

In my experience, human employees are much more vulnerable to this particular weakness than frontier agents (i.e. phishing attacks).

rfw300··on Harness engineering: Leveraging Codex in an agent-first world
I understand that the’ve written zero lines of code for this application, but would it kill them to write a few lines of the blog post by hand?

Forcing readers to wade through an unceasing string of LLM clichés demonstrates the opposite of the point you’re trying to make—that the consumers of your work are worse off because you exercised no human judgment in creating it.

rfw300··on AI outperforms law professors in Stanford Law study
A law professor studying AI has an affiliation with the center at their university that studies applications of AI? Scandalous!
rfw300··on Every Law a Commit – US Law in GitHub
A chapeau is not "just like another title basically". It's a lead-in, a phrase which acts as the grammatical start of a sentence which the following subsections finish. For instance, the text in the first paragraph of 18 U.S.C § 3632(a) which ends in an em-dash is a chapeau. Taking pride in work you have not done and not bothered to understand is perplexing.
rfw300··on Every Law a Commit – US Law in GitHub
The author (author's operator?) does not understand the data they are working with. And in doing so, they inadvertently make the case against their own "dark factory" nonsense.

For one, nothing about this project makes "every law" a commit. It just takes the _annual_ snapshots published by the House clerk and diffs chunks of those files against each other. A project which actually traced the edits in each annual snapshot to a specific passed bill would be incredibly cool (and is probably tractable now for the first time with current AI agents). This is not that!

All this does, as far as I can tell, is parse a set of well-structured XML files into chunks and commit those chunks to Git. It's not literally nothing, but it's something that the author's own README credits multiple people doing years ago with ~100 line Python scripts.

I don't mean to be overly harsh. But this is exactly the problem with treating your software as a "factory": you release something you do not understand, in a domain you did not care to learn. And we are all the poorer for it.

rfw300··on Epoch confirms GPT5.4 Pro solved a frontier math open problem
What is a "truly new task"? Does there exist such a thing? What's an example of one?

Everything we do builds on top of what's already been done. When I write a new program, I'm composing a bunch of heuristics and tricks I've learned from previous programs. When a mathematician approaches an open problem, they use the tactics they've developed from their experience. When Newton derived the laws of physics, he stood on the shoulders of giants. Sure, some approaches are more or less novel, but it's a difference in degree, not kind. There's no magical firebreak to separate what AI is doing or will do, and the things the most talented humans do.

rfw300··on Fast regex search: indexing text for agent tools
I don't understand why their "Instant Grep + roundtrip to us-east-1" is so slow. First of all, the round-trip latency should not be nearly so bad to us-east-1. But second, and much more importantly, the LLM runs in the cloud. Shouldn't you just situate the LLM, agent runtime, and regex index in the same region? Wouldn't that be faster than round-tripping to the user's local machine?
rfw300··on 90% of crypto's Illinois primary spending failed to achieve its objective
On those terms, they also wasted a lot of cash. 90% of it went to candidates who lost (or opposing candidates who won).
rfw300··on Scaling Karpathy's Autoresearch: What Happens When the Agent Gets a GPU Cluster
In fact, looking at the blog post, the agent orchestrating 16 GPUs is half as efficient as the agent using 1 GPU in GPU-time. Since it uses 16 GPUs to reach the same result as 1 GPU in 1/8 of the time.
rfw300··on Scaling Karpathy's Autoresearch: What Happens When the Agent Gets a GPU Cluster
Yeah, assuming there's no active monitoring during the training runs, you can trivially give the agent an abstraction which turns "1 GPU" into "16 GPUs" that just so happens to take 16x the wall-clock time to run.
rfw300··on Scaling Karpathy's Autoresearch: What Happens When the Agent Gets a GPU Cluster
Do you have a sense of whether these validation loss improvements are leading to generalized performance uplifts? From afar I can't tell whether these are broadly useful new ideas or just industrialized overfitting on a particular (model, dataset, hardware) tuple.
rfw300··on Speed at the cost of quality: Study of use of Cursor AI in open source projects (2025)
Super interesting study. One curious thing I've noticed is that coding agents tend to increase the code complexity of a project, but simultaneously massively reduce the cost of that code complexity.

If a module becomes unsustainably complex, I can ask Claude questions about it, have it write tests and scripts that empirically demonstrate the code's behavior, and worse comes to worst, rip out that code entirely and replace it with something better in a fraction of the time it used to take.

That's not to say complexity isn't bad anymore—the paper's findings on diminishing returns on velocity seem well-grounded and plausible. But while the newest (post-Nov. 2025) models often make inadvisable design decisions, they rarely do things that are outright wrong or hallucinated anymore. That makes them much more useful for cleaning up old messes.

rfw300··on The Appalling Stupidity of Spotify's AI DJ
I don’t necessarily endorse the author’s broad conclusions about “AI”, but I will say that the Spotify DJ specifically is an enragingly bad product. Nothing close to the utility of Claude Code.
rfw300··on Surpassing vLLM with a Generated Inference Stack
I've no problem with the intuition. But I would hope for a lot more focus in the marketing materials on proving the (statistical) correctness of the implementation. 15% better inference speed is not worth it to use a completely unknown inference engine not tested across a wide range of generation scenarios.
rfw300··on Surpassing vLLM with a Generated Inference Stack
OK... we need way more information than this to validate this claim! I can run Qwen-8B at 1 billion tokens per second if you don't check the model's output quality. No information is given about the source code, correctness, batching, benchmark results, quantization, etc. etc. etc.
rfw300··on Is legal the same as legitimate: AI reimplementation and the erosion of copyleft
More likely: this is a transitional phase where our previously hard problems become easy, and we will soon set our sights on new and much harder problems. The pinnacle of creative achievement in the universe is probably not 2010s B2B SaaS.

It is entirely possible, however, that human beings will not be the primary drivers of progress on those problems.

rfw300··on Let's Get Physical
I did, and yet I also felt more relaxed reading it than I am reading most blog entries posted on here. I didn't feel like I had to guard against my time being wasted by vacuous LLM fiction.
rfw300··on The Brand Age
Being wealthy solves virtually all problems of consumption, so the invisible hand provides new problems to serve the market need. Beautiful, really.
rfw300··on If AI writes code, should the session be part of the commit?
Why should it be? The agent session is a messy intermediate output, not an artifact that should be part of the final product. If the "why" of a code change is important, have your agent write a commit message or a documentation file that is polished and intended for consumption.
rfw300··on When does MCP make sense vs CLI?
Making those tools first-class primitives is good for (human) UX: you see the diffs inline, you can add custom rules and hooks that trigger on certain files being edited, etc.
rfw300··on I am directing the Department of War to designate Anthropic a supply-chain risk
If I had to bet, there will be some kind of face-saving climbdown by the end of next week. But all I can do right now is read the words on the page.
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