I asked Claude Fable 5.2 to create 100 HTML files Rules were simple: - look stunning - zero repetitive designs - go full creative mode What can I say? Anthropic has done it YET AGAIN. Just another mind-blowing model, nothing less. Fable 5.2 is the BEST MODEL I HAVE EVER TESTED…↗

I had early access to Fable 5.2 for a bit & I think it crosses the line into being a sort of Jagged AGI. Here, I have it launch a business, do academic research, hack hardware, build 3D models & more. I think it is a good illustration of limits & powers: …↗

We spent a few months reporting on Dario Amodei, and why he thinks about AI the way he does. What we found was a man — deeply influenced by rationalism, effective altruism and the writings of Ray Kurzweil — who survived a fight with testicular cancer and is now leading a trillion…↗

We submitted a ~100-page full report on our assessment to Anthropic. For the public version, Anthropic redacted a majority of the evidence we found most informative. As a consequence, the public must rely on our judgment more than we consider ideal.↗

I believe Ian Hogarth - @soundboy - deserves much wider and deeper credit and recognition for voluntarily forfeiting shares in Anthropic so that he could set up and run the AI Security Institute (@AISecurityInst) - where he, and Britain, are generally acclaimed to be doing an out…↗

Generally speaking, voters want data center moratoriums in the same sense that they want tariffs. Did voters ask for tariffs? Yes. Did they want them in practice? Absolutely no. Voters wanted prices to go down & for communities that were hollowed out to be revitalized. Do v…↗

I spent 20,000 dollars in API credits having different AI models play each other at Blood on the Clocktower (a Mafia or Werewolf type social deception game). The results were fascinating. Models have gotten much better over the course of this year at creative on-the-spot schemin…↗

I'm Sam, one of Anthropic's co-founders, and I lead much of our safety work. I'm going to have more to share on that work over the coming months. I thought I'd start by sharing a few thoughts on the latest report from @METR_Evals. The speed of progress in model capabilities is…↗

Over the past few months, Anthropic scientists have engaged in deep research partnerships with six organizations developing new medicines. We've also begun drug discovery efforts of our own. In doing so, we’ve learned much more about how Claude can support the many stages of dru…↗

@unpopularvc Ant raised money through convertible notes. As its valuation soared, those notes became more valuable, and accounting rules required Anthropic to record that increase as a loss. So most of its $80B loss wasn't actual cash spent.↗

Anthropic has filed an S-1 registration statement with the SEC related to its proposed IPO. Read more: anthropic.com/news/s1-sec Legal disclaimer: A registration statement relating to these securities has been filed with the SEC but has not yet become effective. These securitie…↗

We're excited to share our customer story with @claudeai featuring Factory co-founder and CEO @matanSF. We cover topics like how @AnthropicAI frontier models in @Droid are enabling engineering teams to handle long-horizon tasks across large codebases, what it will take to build…↗

I think Duet and Dots are the wrong form factor for the enterprise because they aren't AGI-pilled enough. The major agent releases today (Grok Bot, Duet, Dots, Muse, Instinct) all act as an "AI Chief of Staff." This allows each employee to get their work done faster, but it does…↗

We’re opening a research preview of Claude Duet, a new app where Claude works as a proactive agent. It comes to you with what needs your attention, completes tasks you ask of it, keeps working when you step away, and checks with you before it acts on your behalf.↗

anthropic’s lead engineer btw.↗

1) Trying again. 
TLDR: Everyone can win. Open-source, frontier labs, infrastructure, applications and most importantly the American people.   I understand all of the jitters about Anthropic losing share, real rates, spreads and second derivatives. Still think the most likely fut…↗

anthropic built their own git. Most interesting mental shift here, and if you buy that changing code happens more and more autonomously, faster*, then this will make a ton of sense: Git was designed so that any client could serve the repo. Fully offline, your *build time* dev…↗

poteto's cursor profile is public. She's used 1.5T tokens in the last 30 days. Assuming an avg rate of $8/M that's $384k/day or $11m. In the last 30 days. Per year thats $132M. Let's assume Cursor has some insane deal with Anthropic and gets 90% off. That comes out to $38k/day…↗

The Claude Startups program is expanding to more founders. Members can get a year of Claude Team, API credits, special offers on the tools a startup runs on, and office hours with Anthropic’s Applied AI team.↗

Matt Murphy is a legendary investor with a track record of being very early and being very right. He led the Series D of Anthropic in Jan 2024. Their best model was Claude 2.1. I am thrilled to have @mmurph and Menlo Ventures investing in @FactoryAI. We are still so early.↗

So let me get this straight. People at anthropic believe that they are birthing a new species, potentially conscious and human-like. They are concerned about the well being of Claude, etc.. The company then goes around talking to relugious leaders about potentially extending mora…↗

NEW: According to a bombshell report in the New York Times, Anthropic co-founder Chris Olah threatened to walk out of Pope Leo XIV’s AI encyclical launch in May because the pope rejected the idea that machines can be conscious. Olah’s team then privately lobbied the pope’s advis…↗

Some of my friends will be mad I recorded this, and comms people at Anthropic objected to releasing certain parts (and delayed it). But it's important for leaders to make these conversations happen. And I have a lot of respect for these two. Over a month ago, I sat down with An…↗

This is deeply disturbing: Anthropic secretly invited religious leaders to SF to advise them on AI safety, had them sign NDAs, but then primarily tried to convince them Claude has a soul & moral standing, all while wining & dining them to the max. 1/ tinyurl.com/preview/296b5z…↗

Claude has discovered a previously unknown enzyme system hidden in the DNA of bacteriophages. Beside the enzyme’s gene sits a long array of repeating DNA—a structure that looks somewhat similar to CRISPR. We don’t yet understand what this system does, but only a handful of known…↗

🚰 SYSTEM PROMPT LEAK 🚰 Here's the full system prompt for Claude Opus-5.5!! The total count of everything extracted, including all tools, comes in at over 1.9M characters! 🤯 Lots to dig into here. Enjoy! 🫡 Link: github.com/elder-plinius/… gg↗

I’ve put a ton of tokens through Jev now, and...I have thoughts. 1. The big labs lost the script TypeSafe’s intro video says, “We’re building prod, not God” — and can I just say? Hell yeah. @typesafeai built something for engineers like me, so I can build products for people li…↗

We’re partnering with Accenture on independent evaluation of frontier AI—part of our recent commitment to embed evaluators at Anthropic. Both we and Accenture expect to invest at least $1 billion to build capacity in this area over the next five years. …↗

I have conducted an audit of Anthropic's finances. What I have found is so shocking that I am calling for a Congressional investigation. Anthropic is not just seeking regulatory capture. It has built a regulatory capture machine that cannot be turned off. Structural financial…↗

Wild 24 hours for AI and lots of different proposals have been made. TLDR; the only *tangible* new fact is that OpenAI and Anthropic are going to have embedded 3rd party evaluators from unknown organizations with Dario floating METR as a possibility. Having 3rd party evaluators…↗