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An update on GitHub availability
Here’s what we’ve done—and what we’re still doing—to improve our availability and reliability.
Most cited
Posts that commenters keep linking to, ranked by how many different people have cited them in Hacker News comments. 257 posts.
32
Emotion concepts and their function in a large language model
All modern language models sometimes act like they have emotions. What’s behind these behaviors? Our interpretability team investigates.
33
Task-Completion Time Horizons of Frontier AI Models
Our measurements of the time horizons for public frontier language models.
34
Security advisory: Critical remote code execution vulnerabilities, update now
PHP is a popular general-purpose scripting language that powers everything from your blog to the most popular websites in the world.
35
An OpenAI model has disproved a central conjecture in discrete geometry
An OpenAI model solved the 80-year-old unit distance problem, disproving a major conjecture in discrete geometry and marking a milestone in AI-driven mathematics.
36
The path to ubiquitous AI (17k tokens/sec)
By Ljubisa Bajic Many believe AI is the real deal. In narrow domains, it already surpasses human performance. Used well, it is an unprecedented amplifier of human ingenuity and productivity. Its widespread adoption is hindered by two key barriers: high latency and astronomical cost. Interactions with language models…
37
Hardening Firefox with Anthropic's Red Team
Claude Opus 4.6 found 22 Firefox vulnerabilities in two weeks, 14 rated high-severity, with proofs-of-concept and candidate patches for Mozilla.
38
Git at any scale
Hosting Git repositories at scale is a nightmare. When Linus Torvalds designed the first version of the information manager from hell (that's actually the tagline for Git, look it up ), he had a very specific use case in mind: his own. He wanted to replace BitKeeper, the distributed version control system that was…
39
The original URL for this prediction will no longer be available in 11 years (2011)
will go to Bletchly Park Trust if Keith wins, or The Internet Archive if Haughey wins.
40
The Dunning-Kruger effect may just be a data artefact (2020)
I want the Dunning-Kruger effect to be real. First described in a seminal 1999 paper by David Dunning and Justin Kruger, this effect has been the darling of journalists who want to explain why dumb people don’t know they’re dumb. There’s even video of a fantastic pastiche of Turandot’s famous aria, Nessun dorma…
41
A Mathematical Framework for Transformer Circuits (2021)
Transformer language models are an emerging technology that is gaining increasingly broad real-world use, for example in systems like GPT-3 , LaMDA , Codex , Meena , Gopher , and similar models. However, as these models scale, their open-endedness and high capacity creates an increasing scope for unexpected and…
42
Where the goblins came from
How goblin outputs spread in AI models: timeline, root cause, and fixes behind personality-driven quirks in GPT-5 behavior.
43
AdFection: Targeted ads turned into a pipeline for zero-click mercenary spyware
This is the first-ever public confirmation of zero-click mercenary spyware delivered via targeted ads. We call the technique AdFection, and show how it was used to infect devices at Al Jazeera with Candiru’s spyware. We also uncover Discover-Tech, and show how the company helps mercenary surveillance vendors track and…
44
Hardening Firefox with Claude Mythos Preview
New details about what we found, and how agentic harnesses are now able to reproduce real bugs and dismiss false positives.
45
OpenAI: GPT 5.6 Sol price reduction (until at least Nov 21)
Pricing information for the OpenAI platform.
46
The Prompt API
Discover the infinite possibilities of the Prompt API.
47
Detecting and countering misuse of AI: September 2026
Case studies from threat actors disrupted between December 2025 and August 2026 across seven areas of harm, from cyber operations to biological misuse.
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The PGP problem (2019)
The PGP problem
49
Dark Mode vs. Light Mode: Which Is Better?
In people with normal vision (or corrected-to-normal vision), visual performance tends to be better with light mode, whereas some people with cataract and related disorders may perform better with dark mode. On the flip side, long-term reading in light mode may be associated with myopia.
50
Statement on US government directive to suspend access to Fable 5 and Mythos 5
The US government has issued an export control directive suspending all access to Fable 5 and Mythos 5 by foreign nationals inside or outside the US.
51
Claude Opus 4.7
Claude Opus 4.7 is now generally available, with notable gains over Opus 4.6 in advanced software engineering and the most difficult tasks.
52
The Waymo World Model
We are excited to introduce the Waymo World Model, a frontier generative model that sets a new bar for large-scale, hyper-realistic autonomous driving simulation.
53
Transformers Explained Visually
An interactive visualization tool showing you how transformer models work in large language models (LLM) like GPT.
54
We are changing our developer productivity experiment design
Our second developer productivity study faces selection effects from wider AI adoption, prompting us to redesign our approach.
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CVE-2026-98432: 9.8 CVE affecting all Ubuntu versions
Ubuntu is an open source software operating system that runs from the desktop, to the cloud, to all your internet connected things.
56
Joint statement from Google and Apple
Apple and Google have entered into a multi-year collaboration under which the next generation of Apple Foundation Models will be based on Google's Gemini models and clou…
57
Claude Fable 5
Today we’re launching Claude Fable 5: a Mythos-class model that we’ve made safe for general use.
58
Motorola announces a partnership with GrapheneOS
Motorola announces three new B2B solutions at MWC 2026, including GrapheneOS partnership, Moto Analytics and more.
59
Claude Opus 4.6
We're upgrading our smartest model. Across agentic coding, computer use, tool use, search, and finance, Opus 4.6 is an industry-leading model.
60
Making WebAssembly a first-class language on the Web
This post is an expanded version of a presentation I gave at the recent WebAssembly CG meeting in Munich. WebAssembly has come a long way since its first release in 2017. The 1.0 version of WebAssembly was already a great fit for low-level languages like C and C++, and immediately enabled many new kinds of…