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I cowork at a closed retro video game museum on Tuesdays. Today a random guy walked up to the museum, noticed it was closed, taped a 3.5 inch floppy of Macintosh SimFarm to the door, then walked away
Like a retro-gaming equivalent of Martin Luther
Gemini 4 just obliterated claude all the way off of my triangle. It'll be interesting once the first reports come as to whether it was benchmaxxed
they finally fixed their obviously-broken index
Announcing Artificial Analysis Intelligence Index v5, featuring 2 new benchmarks and 3 upgrades. For the first time, the majority of the Index is built on private datasets
The Artificial Analysis Intelligence Index is our composite measure of model capabilities across tasks reflecting real-world usage today. v5 is our biggest upgrade since v4 launched in January. With v5, 60% of the Index is now based on evaluations with private test sets or held-out answers.
Alongside Intelligence Index v5, we’re launching the Artificial Analysis Progress Index v1, which tracks model capability over time on one continuous scale.
New to the Intelligence Index:
➤ FrontierCode 2.0: Cognition's newly-launched private benchmark of real-world coding tasks, graded on whether a repository maintainer would merge the agent's change
➤ Terminal-Bench-Science: 70 agentic scientific research tasks, run in a terminal environment
Upgraded:
➤ HLE-Diamond (replacing Humanity's Last Exam): a refined 1,000-question version of Humanity's Last Exam, split evenly between reasoning and knowledge questions
➤ AA-Omniscience v1.1: An updated dataset with saturated and public set questions removed, new questions added, and ambiguous or erroneous questions revised
➤ CritPt v2: a private, 40-question hard subset of CritPt v2, revised by the CritPt authors and run with a code-execution tool
Staying in the Index: AA-Briefcase, AutomationBench-AA, GDP.pdf and Terminal-Bench 4.0
Removed from the Index: GDPval-AA v2.1, SciCode, and AA-LCR v1.1
Key results:
➤ Claude Opus 5.5 (max) leads at 58, ahead of GPT-6 Astra (max, 57) and GPT-6.1 Sol (max, 55): Anthropic and OpenAI hold the top five models. Gemini 4 Argon (high) is next at 50
➤ The open weights gap widens from 3 points to 12: Kimi K3.1 Pro (weights not yet released) is the top open weights model at 46. Among released weights, DeepSeek V4.1 Flash 1017 (max) and GLM-5.3 (max) lead at 32 - 26 points behind the leader and below Claude Haiku 5.5 (max, 36)
➤ Cost per task varies by more than 13x among the leading models: of the 10 highest-scoring models shown, GPT-6.1 Terra (max) is the cheapest at $0.96 per Intelligence Index task and Claude Fable 5.1 (max) the most expensive at $13.04
Conrad Barski retweeted
A Chinese company uses civil unrest in France as an ad to promote the durability of its glass.
Readers added context they thought people might want to know
The video is news footage of French riots at an LV store filmed by journalist Clément Lanot of CLPRESS, not an ad by a Chinese company. Claims the glass is Chinese-made are unverified viral assertions.
unwire.hk/2026/10/21/par…
bloompakistan.com/chinese-blast-…
shopenauer.com/en/news/louis-…
I'm always impressed at how well our dog has classified all the objects in our house as "chew toy" and "not chew toy"
that feeling when a website has a broken login process, so you're forced to admit guilt by clicking on "forgot password" even though you know exactly what your password is
"just ditsy old me again, always forgetting my passwords"
Conrad Barski retweeted
Ok folks, informal poll: use the little browser app at the link below to say how you think the sets of physical systems, living beings, and minds fit together in a Venn diagram:
three-circles.space.fast/
Conrad Barski retweeted
I wrote a book, and it is finally here!
And it is a book about something nobody ever written, even when thousands of people use these things every day.
Higher Order Functions - these are functions that either accept functions as parameters, or return functions, or both.
They are extremely powerful form of abstraction, that replace not only most of design patterns, but also can simplifty algorithms. This is the core focus of my book.
On hundred or so of algorithms I am showing, how HOFs can make many algorithms (I picked ones from operations research, but the lesson is universal) easier to update, reason about, and reuse.
If you are a curious developer or SW architect, who wants to dramatically simplify your algorithms while making them more universal, without sacrificing performance, this is a book for you.
In 3 weeks from now, you will be able to order it.
People like sbf and holmes never apologize because they have a loosey-goosey thinking style, which means:
1. They lack insight into their mistake, as the "wrongness" was very diffuse
2. An apology only helps strategically if you articulate your mistake well, but #1 prevents that
"big keyboard" doesn't want you to know this, but:
the option/command/ctrl keys on the right side of your laptop are totally different than the ones at the left side of the keyboard at an OS level, with a little ai help you can make those do completely different things for you
agree that simply being a giant shameless liar like holmes, sbf does not make someone an interesting/noteworthy person, I wish our culture would stop treating them that way
(that said, I admittedly find it hard to look away from holmes' unique brand of weirdness lol)
Let's hope this ONE TIME it doesn't just allow us to make LLMs even more complicated, to increase capabilities even more, and make them even more incomprehensible
interpretability might be the most important scientific problem in the world right now, as I don't think we can solve alignment if we don't know what we're building. I think I have good news about it. I co-authored early work in mechanistic interpretability at OpenAI and came away pessimistic, because neural networks appeared to fold into arbitrary tangled knots. years later, I started openai's first large-scale automated interpretability project, finding about 2% of neurons legible with the primitive tools we had
with modern agentic tools and a much closer look, the picture looks totally different. the vast majority in models up to trillions of parameters are legible, and their circuits beautiful. many famous examples of tangled neurons turned out to be misunderstood. The roadblocks I expected mostly aren't there. I now think ambitious interpretability will be solved by the time we need it most, and possibly quite soon, as automated scientists keep improving. it may be a bitter lesson for interpretability: the simple thing, at absurd scale, works
already-clean.goodfire.com/



















