841
The current balance of power in open models
The expanded form of a testimony I prepared for Congress.
New
The latest blog posts to take off on Hacker News. 80,789 posts.
842
SAML: A fractal of bad design
SAML, the XML-based authentication protocol that birthed the SSO industry, is fundamentally flawed due to XML complexity, canonicalization issues, enveloped signatures, and design ossification, making it vulnerable to signature wrapping attacks and parser differentials that persist despite decades of awareness…
843
Enjoy Every Sandwich
this captivating subtitle I wrote really makes you want to read it, doesn’t it?!?
844
Unreal Agent
We’re sharing Unreal Agent — an agent harness that delivers up to 40% cost savings compared to Codex on production workloads and coding/science benchmarks, without any negative performance impact.
845
An update on how we confirm your age group on Discord
We’re launching a revamped, privacy-focused age assurance solution including methods that won’t require an ID or selfie. Here’s how it works.
846
GPT-6 Sol and Luna
Meet GPT-6 Sol and Luna, two models that bring frontier intelligence to everyday work with different balances of capability and cost.
847
My weird new hobby: Wandering around Tokyo on Google Maps
My weird hobby lately is just wandering around Street View and zooming in on random stuff. Today I found a 350Z that shows up parked in the same Tokyo spot in every capture since 2009.
848
Claude Opus 5.5
Claude Opus 5.5 leads in agentic coding and knowledge work, and costs 40% less to run than Opus 5 on typical workloads.
849
Writing Rust code that's fast by asking agents to make the code faster
c’mon, try doing a breakthrough
850
I asked Meta’s Muse for its filesystem and it sent me 6.8GB
I asked Muse to archive the files it could see and send them to my Google Drive. It did.
851
RAM: the forgotten history (2024)
We owe computers not to Charles Babbage, but to the invention of electronically-controlled working memory.
852
OpenAI is well positioned to fast-follow Jev
TypeSafe's Jev is a genuine breakthrough – snap judgments with calibrated probabilities instead of generated text. My bet is OpenAI is already figuring out how to copy it, and then embed it inside its own models where Jev can't follow.
853
OpenAI GPT–6 Astra breaks Enigma message that has resisted solution since 2005
On 15 September 2026, Carter Leffen contacted me to request validation of a break of the German Army Enigma message MVUEH of 10 July 1941. The message, which was sent by a radio station with the tactical callsign 2ny, was received by the radio station of the SS-Totenkopf Quartiermeister, Ib. Ib received the message at…
854
Fearless SIMD v1.0
Fearless SIMD v1.0 is here
855
AI Has No Wisdom and Neither Will You
Certainly the industry is transforming, however, the people and organizations falling into the trap of no longer reading and writing code only do so at their peril.
856
The mystery animal on an ancient god's head
Several Egyptian gods are depicted with animal heads. Horus has a falcon head, Anubis has a jackal head, Thoth has an ibis head (except when he’s a baboon), and Set has…uhh, what is that, exactly? …
857
9 Ads per Minute: FIFA Cup 26 – "the price of the beautiful game"
More than 93,000 visible appearances of brands promoting unhealthy food and drink, alcohol, gambling and speculative products were recorded during coverage of the largest FIFA World Cup in history, new research has found. Unhealthy food and drink brands accounted for more than seven in ten, with 65,722 appearances.
858
I said no and Apple said yes
The one where Apple decides consent doesn’t matter anymore.
859
Can gzip be a language model?
A while back I wrote about language modeling without neural networks, where I generated Shakespeare with an unbounded n-gram model: no weights, no training, …
860
The "Windows XP Box" (2003)
I needed a small Windows XP machine and a Mini-ITX board was the obvious choice. So I decided to build my "Windows XP Box" in a Windows XP box. The external dimensions of the box are a tiny 243mm x 200mm x 48mm.
861
Side-stepping the Secretary Problem, unwittingly
Having played both parts in the kabuki play that is employee-employer matchmaking, I feel the way we play it is a zero-sum game. I wish it were not so. When this post started life in 2024, as a wall of text chat message, it was brutal out there, on both sides of the software industry interview table. The ZIRP had…
862
Spymarks, not Watermarks
Watermarks that spy on users are no mere watermarks
863
Markdown in /src
In this essay, Carson Gross argues that Markdown is now an important source artifact for software systems built with LLMs, and that, following the principle of locality, it should live in /src, alongside the code it produces.
864
I don't want to read what you didn't write
Intentional writing will likely become more valuable.
865
Suspension of the de minimis administrative exemption for imports $800 or less
The DRUGS Act (‘Domain Reform for Unlawful Drug Sellers Act, H.R. 6352 & S.3399) is legislation that would rob you and millions of Americans of daily medications that keep them healthy and alive. Worse yet, the legislation is backed by Big Pharma front groups.
866
Transformers Explained Visually
An interactive visualization tool showing you how transformer models work in large language models (LLM) like GPT.
867
AI coding has made CI a bottleneck, so we reworked ours to keep up
We cut PR wait time and running costs by rethinking CI as a system, from the infrastructure underneath it to how work gets scheduled and tests get parallelized.
868
The Advisory Group on Mathematics and Artificial Intelligence
[This is a guest post by the Advisory Group on Mathematics and Artificial Intelligence. This blog post was initially written in a different file format and converted using AI. — T.] We would …
869
Frontier AI on Your Own Hardware
In one of my classes I asked the question I was afraid to ask but I just needed the answer to: “Who is afraid of not getting a job after graduating?” About eighty percent of the 150 people in the room raised their hands. That is roughly 120 students answering, in one motion, that they […]
870
Why does mathmain need an encrypted loader?
A math solver leads to encrypted code in npm packages. Follow the loader, the trigger matrix that unlocks it, the remote access payload, and the full indicators.