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LessWrong posts by zvi

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Yesterday · 1 hr 19 min
“We Must Pace The Frontier” by Zvi
Dario Amodei has a new essay that finally says the thing: We Must Pace the Frontier, naming his call after the Pacing the Frontier letter lab employees signed in July. As in, we need to slow the rate at which AIs increase their capabilities, to allow for the necessary alignment and safety work. He explained that, without pacing, he expects things to escalate quickly. He offered three proposals, and unilaterally committed to the first one. OpenAI followed, and both Elon Musk and Demis Hassabis endorsed the overall proposal. There is still a long way to go. The odds are still against us. The situation remains grim. The hard part lies ahead. We do not agree on what ‘Pacing the Frontier’ will mean in practice. But this is Actual Progress. The work can begin. Table of Contents Pacing Does Not Mean Pausing. Dario's First Proposal: Embedded Evaluators. Dario's Second Proposal: Democratic Coordination. Dario's Third Proposal: Global Coordination. Why Pace Now? Sam Altman Agrees and Commits to Embedded Evaluators. OpenAI Will Not IPO This Year. Elon Musk Agrees. Demis Hassabis Agrees. Microsoft CEO Satya Nadella Agrees [...] --- Outline: (01:02) Pacing Does Not Mean Pausing (02:53) Dario's First Proposal: Embedded Evaluators (11:05) Dario's Second Proposal: Democratic Coordination (14:36) Dario's Third Proposal: Global Coordination (17:24) Why Pace Now? (19:22) Sam Altman Agrees and Commits to Embedded Evaluators (24:42) OpenAI Will Not IPO This Year (26:08) Elon Musk Agrees (29:00) Demis Hassabis Agrees (29:38) Microsoft CEO Satya Nadella Agrees And Talks His Book (31:50) Anthropic's Long-Term Benefit Trust Is On Board (32:49) General Online Reactions (34:30) Mainstream Press Coverage (37:26) OpenAI Researcher Explains What The Labs See And It's a Rocket Ship (46:10) Consider the Alternative (47:47) It's Totalitarianism, Joe (53:35) Yes We're The Baddies How Did You Know? (55:22) Sometimes People On the Internet Just Lie (56:50) David Sacks Groks The Situation (57:48) David Sacks Says Go Ahead (59:28) Lies and Confusions About Who Previously Claimed What (01:04:07) House Speaker Mike Johnson Wants To Lock Everyone In a Room (01:09:28) Donald Trump is Not Tired of Winning (01:14:29) We Must Avoid Polarization on AI at (Almost) All Costs (01:15:14) How Will We Know If They Actually Paced? (01:18:24) The Real Frontier Is Internal Models At Top Labs --- First published: September 14th, 2026 Source: https://www.lesswrong.com/posts/iWPDPWAPCGiSMiFA2/we-must-pace-the-frontier --- Narrated by TYPE III AUDIO. --- Images from the article: Apple Podcasts and Spotify do not show images in the episode description. Try Pocket Casts, or another podcast app.
Sunday · 33 min
“Brand New AI Solves a Millennium Prize” by Zvi
The first Millennium Prize, Navier-Stokes, has fallen to AI. A deeply unfortunate situation has arisen involving what should have been some combination of a positive story about new progress in AI-assisted mathematical research and yet another opportunity to freak out about rapid AI progress. Or, as we call it around here, Tuesday. The Real Story Is The New Model That Is Better Than Astra Keep your eyes on the prize. There are three stories here. The first story is much more important than the second story, which in turn is much more important than the third story. OpenAI's next model took a week to get a generation ahead of Astra, and they are telling us this because everyone is totally freaked out about what is happening. Or, in official language: ‘We believe it is important to inform the world about the pace of AI progress and what to expect from upcoming models’ and that we ‘may require more deliberate choices about the pace of progress.’ This new AI has, eight days after it started training, solved Navier-Stokes. A bunch of drama over who gets the credit [...] --- Outline: (00:31) The Real Story Is The New Model That Is Better Than Astra (01:47) Setting the Stage (03:47) I Heard a Rumor (04:32) Our Price Cheap (06:14) An Accusation Is Made (10:57) How Did You Get That Idea? (12:59) OpenAI Almost Certainly Did Not Misappropriate User Data (14:34) Our Top Labs Cannot Get Along Even On A Feel-Good Math Story (15:52) What Next? (16:39) The Mathematicians Are Not Happy (21:14) OpenAI's New Model Was A Step Change Above Astra Four Days Into Training (23:16) OpenAI Research Progress Is Accelerating Due To OpenAI Research Progress (30:39) Quantifying OpenAI's Pause (31:09) This Is the Way the World Ends (31:44) Quickly, There's No Time --- First published: September 13th, 2026 Source: https://www.lesswrong.com/posts/uoZW6BKaCcmNQrWis/brand-new-ai-solves-a-millennium-prize --- Narrated by TYPE III AUDIO. --- Images from the article: Apple Podcasts and Spotify do not show images in the episode description. Try Pocket Casts, or another podcast app.
Saturday · 1 hr 14 min
“GPT-6-Astra Can Do Ambitious Things” by Zvi
Astra is an excellent model. The jump from Sol to Astra is larger than the jump from Fable 5 to Fable 5.1. This is a big deal. Astra is the best model for what one would broadly call ‘ambitious projects,’ and likely has the highest raw intelligence factor of any model. These are the largest jumps. It is amazing at doing things in 3D, or anything involving games. Astra also excels at computer use, and at subagent coordination. Many benchmarks show dramatic jumps from all previous models. Where Astra is good, it can be in a league of its own. That does not mean Astra is in its own league across the board. Fable 5.1 is still a Claude. Astra is still a GPT. If you have a strong preference for one over the other, that still applies. For many purposes, especially involving back-and-forth discussions, Fable 5.1 is still my top choice. Fable remains my primary editor. If you want the best answer to your questions, you should ask both models. Regular coding is getting less of a focus. Astra is not a quantum leap there, but of course it is very good [...] --- Outline: (02:34) Meanwhile (04:38) The Official Pitch (13:08) Our Price Cheap (14:06) Unnecessary Overstatement (15:53) Paced Rollout (16:32) Official Benchmarks (22:37) Other People's Benchmarks (30:47) Thinking, Fast Without Slow (34:25) How Dare You, Sir (36:36) PoetryBench (37:54) In 3D (39:14) Time to Think (39:59) I'm Putting Together a Team (41:02) Reviews and Essays (41:37) Computer Use (42:47) Positive Reactions (50:53) AGI (54:20) Astra Can Do The Math (57:27) Astra Can Code (59:35) I Came to (Change the) Game (01:02:37) Astra Does Other Cool Things (01:03:31) Astra Never Quits Except When It Does (01:05:26) Negative Reactions (01:07:45) Stop It With the Hedging (01:08:57) Personality Clash (01:09:53) Revealed Preference (01:12:03) Dual Wielding The original text contained 1 footnote which was omitted from this narration. --- First published: September 12th, 2026 Source: https://www.lesswrong.com/posts/snaKjCwazKcRiS4qs/gpt-6-astra-can-do-ambitious-things --- Narrated by TYPE III AUDIO. --- Images from the article: Apple Podcasts and Spotify do not show images in the episode description. Try Pocket Casts, or another podcast app.
Friday · 1 hr 20 min
“Jacob Coxon Warns of Human Extinction and Triggers a Preference Cascade” by Zvi
CEOs of major AI labs, and employees of major AI labs, including OpenAI and Anthropic, often say they plan to build superintelligence soon, as in within a few years create AIs that are superior to humans at essentially all cognitive tasks. They often warn that such AIs might kill everyone. Or that AIs might cause mass unemployment, cause cyberattacks across the internet, enable mass surveillance or risk causing any number of other highly bad things. These warnings are consistently and directly against the interests of the labs. Yet the warnings have recently gotten a lot louder and more frequent. OpenAI has been practically screaming, for those with ears to listen, on many occasions. A series of events, over two months and especially the last week or so, including internal observations of the pace of progress at OpenAI and also Anthropic, have freaked out everyone involved quite a lot more than they were already freaked out. After all the events, plus statements by Dean Ball and Jakub Pachocki, we were already seeing the beginnings of a preference cascade. Then along came Jacob Coxon as the tipping point, and things took off. Table of Contents [...] --- Outline: (01:22) Jacob Coxon Resigns From Anthropic In Protest And Sounds The Alarm (05:46) Mainstream Media Finally Pays Attention (06:47) Preference Cascade at Anthropic (10:18) Preference Cascade at OpenAI (13:26) Preference Cascade at Google (14:43) #NotAllMembersOfTechnicalStaff (15:23) Why a Preference Cascade Now? (21:01) This Is What Many Anthropic and OpenAI Employees Actually Believe (24:08) To Quit Or Not To Quit (31:29) Quiet Quitting Is A Dominated Option (32:50) When You Quit, Very Serious People Understand What That Means (39:29) Jacob Coxon Believes Existential Risk Is High That Is Why He Quit (41:47) Evan Hubinger Believes Existential Risk Is High That Is Why He Stays (45:22) Anthropic and OpenAI Have Commercial Incentives To Downplay Existential Risks, Not Advertise Them (50:54) What Do We Do Now? (53:03) OK, But How Exactly Would AI Kill Everyone? (01:01:44) Best Start Believing In Science Fiction Stories Because You Are In One (01:06:20) Literal Extinction Is Not Much Harder Than Loss of Control (01:07:42) Conspiracytown Is Always Hiring (01:20:14) Now You See It --- First published: September 11th, 2026 Source: https://www.lesswrong.com/posts/5MB7KENgEAW6Q4JtJ/jacob-coxon-warns-of-human-extinction-and-triggers-a --- Narrated by TYPE III AUDIO. --- Images from the article: Apple Podcasts and Spotify do not show images in the episode description. Try Pocket Casts, or another podcast app.
Friday · 31 min
“The Extinction Risk Preference Cascade: Quotes” by Zvi
These are quotes from OpenAI, Anthropic and Google employees, in the wake of Jacob Coxon's warnings, in which the employees confirm that they think AI might soon kill everyone. If more quotes come in over the next week or so, I will update this post accordingly. Preference Cascade Statements At OpenAI: Tomek Korbak Tomek Korbak (OpenAI): i’m late to the party but: from his time at OpenAI I remember Jacob as a very thoughtful researcher and he continues to be so in this thread. neither anthropic nor openai are on track to solve alignment to a degree sufficient for shipping superintelligence and we need to slow down Vie McCoy Vie McCoy (OpenAI): I think pacing progress and ensuring human enhancement is the only way that we don’t get out-evolved while retaining the dream of superintelligence. In this context, I see two paths before us. In the first, we race towards RSI without embedding human flourishing and human enhancement as a deep value within the models, and by and large either get left behind or suffer catastrophic losses. In the second, we set the pace of progress, focus on embedding human flourishing [...] --- Outline: (00:27) Preference Cascade Statements At OpenAI: Tomek Korbak (00:55) Vie McCoy (03:46) Adam Majmudar (05:05) Aidan Clark (05:46) Mo Bavarian (07:32) Boaz Barak (08:20) Micah Carroll (09:15) Roon (12:55) Confirmations At OpenAI: Dean Ball (14:39) Leo Gao (14:57) Anthropic's Evan Hubinger Confirms His Stance (15:50) Preference Cascade at Anthropic: Samuel Marks (17:36) Anna Wang (18:22) Ethan Perez (18:59) Dima Krasheninnikov (19:27) EigenGender (Anon Account) (19:58) Joe Benton (20:07) Confirmation at Anthropic: Drake Thomas (21:28) Jan Lieke (22:07) Sluggy (22:29) Preference Cascade at Google (22:56) Andreas Kirsch (23:39) Neel Nanda (24:15) Victoria Krakovna (25:26) Vishal Maini (27:01) Joe (OpenAI, ex-Google) (28:21) Josh Engels (28:39) Geoffrey Irving (29:30) Alex Turner and Geoffrey Hinton: Classic Examples (29:45) #NotAllMembersOfTechnicalStaff: Ted Sanders --- First published: September 11th, 2026 Source: https://www.lesswrong.com/posts/APGvWZtXEwkinvHDd/the-extinction-risk-preference-cascade-quotes --- Narrated by TYPE III AUDIO. --- Images from the article: Apple Podcasts and Spotify do not show images in the episode description. Try Pocket Casts, or another podcast app.
Thursday · 1 hr 55 min
“AI #185: Preference Cascade” by Zvi
The world of AI is inside my OODA loop. Even if I can process all the incoming information and sculpt it into posts, and even using Saturday and Sunday as flex slots, I don’t have enough days of the week to post all the posts that need posting. That was already true. There was already a preference cascade happening where people finally were admitting that they thought AI might well kill everyone. Then Jacob Coxon resigned from Anthropic, rang the warning bells and turned that cascade into an avalanche. Now that is what everyone is talking about. Finally, everyone is actually saying the thing, out loud. I plan to cover that in its own post soon. There are several things in the weekly that, in a normal week, would get their own coverage. Senator Sanders and Representative Casar introduced an outright ban on superintelligence and I have to remind myself that happened this week. Suddenly it is not so crazy to think such a thing might pass. So here's what I’ve already posted about so far since the last weekly: Claude Fable and Mythos 5.1: The System Card. Claude Fable and [...] --- Outline: (04:49) Language Models Offer Mundane Utility (05:39) Language Models Don't Offer Mundane Utility (06:53) Huh, Upgrades (08:25) How To Tell a Fable (09:35) On Your Marks (09:55) Deepfaketown and Botpocalypse Soon (14:16) Levels of Friction (17:35) Cyber Lack of Security (23:48) A Young Lady's Illustrated Primer (25:18) They Took Our Jobs (29:18) Anthropic Offers Economic Scenarios (34:12) Get Involved (37:05) Introducing (37:47) In Other AI News (38:13) Show Me the Money (38:25) Quiet Speculations (42:49) The Quest for Sane Regulations (44:09) The OpenAI Policy and Lobbying Department (50:41) Greetings From the Department of War (51:58) Hugging The Face (59:16) Hugging the Question (01:03:21) The Ban Artificial Superintelligence Act (01:11:05) Chip City (01:12:21) The Week in Audio (01:12:41) People Just Say Things (01:18:09) PauseAI Global Disendorsed PauseAI US (01:19:55) Paul Christiano Joins Board of OpenAI Foundation (01:25:18) Rhetorical Innovation (01:34:23) Aligning a Smarter Than Human Intelligence is Difficult (01:37:00) Cooperative Alignment (01:45:48) Drive to Survive (01:48:13) People Are Worried About AI Killing Everyone (01:50:07) Other People Are Not As Worried About AI Killing Everyone (01:52:30) The Lighter Side --- First published: September 10th, 2026 Source: https://www.lesswrong.com/posts/tFmtz9HW6c2X9dw2B/ai-185-preference-cascade --- Narrated by TYPE III AUDIO. --- Images from the article: Apple Podcasts and Spotify do not show images in the episode description. Try Pocket Casts, or another podcast app.
Wednesday · 1 hr 4 min
“GPT-6 Astra: The System Card, Alignment and What Comes Next” by Zvi
OpenAI claims that Astra is ‘the most intelligent and most aligned [available] model’ in the world. Not the most intelligent and aligned OpenAI model, but the most period. That is bold talk. It risks overstepping, and by doing so souring the release of what is clearly an excellent model. As do the severe problems with monitorability. It also raises the question of what they mean by ‘most aligned model.’ How do they define ‘aligned.’ Why do they think it is more aligned than Claude Fable 5.1? keltan : “a significant step forward in […] alignment.” Buddy, how tf are you measuring ‘alignment’? Would love to know because being able to measure that would save the fucking world. roon (OpenAI): low rates of cheating Rob Miles: *detected cheating keltan : Thank you for clarifying. But you know what I’m gonna say next, right? roon (OpenAI): that this metrics are not a full solve of alignment and will break discontinuously keltan : Yep. But I would have said it in a dumber way. Something like: Low Rates of Cheating ≠ Alignment roon (OpenAI): I agree but also in some real sense [...] --- Outline: (04:12) OpenAI's Safety Claims About Astra (1) (08:33) Preparedness Capabilities Assessment (10) (09:00) Biological and Chemical Capability is High (10:33) Cybersecurity Capability is Critical (17:05) AI Self-Improvement Capabilities (10.1.3) (17:45) Astra Is Highly Verbally Eval Aware (from 8.6) (19:05) Safe Mundane Completions (4.1) (21:05) Jailbreaks (5.1) (22:21) Prompt Injection (5.2) (23:41) Health (6) (24:22) Hallucinations (7) (24:57) Alignment (8) (26:06) Obeying Restrictions (8.2) (29:19) That's Worse, You Do Get How That's Worse, Right? (30:45) OpenAI Does Not Understand Why This Is Worse (34:52) The Alternative Explanation Is Also Worse (42:39) Metagaming (8.7) (45:07) Alignment Faking (8.7) (46:19) Don't Lie to the User (8.3) (47:25) Misalignment in Realistic Work Environments (8.4) (48:05) Unintended Agent-to-Agent Communication (8.5) (49:48) The Three Obviously Monitored Temptations of Astra (51:26) Severe Issues In Simulated Traffic Are Down By Half (53:01) UK AISI External Evaluations (8.8) (57:02) Sabotaging Safety Work (57:29) What About The July 19 Attacks? (58:58) Apollo Research External Evaluations (8.8.1) (01:00:01) The Alignment Verdict (01:02:04) It Depends What You Mean By Alignment --- First published: September 9th, 2026 Source: https://www.lesswrong.com/posts/AmFJZyeCgvFjNKgNk/gpt-6-astra-the-system-card-alignment-and-what-comes-next --- Narrated by TYPE III AUDIO. --- Images from the article: Apple Podcasts and Spotify do not show images in the episode description. Try Pocket Casts, or another podcast app.
September 8 · 1 hr 9 min
“Astra Is Hard to Monitor” by Zvi
OpenAI's central message on Astra is that it is three things: Highly capable and can do all the things for you. Hard to monitor. The most aligned model. The first claim largely checks out. Astra and Fable are both clearly excellent models. This post is about their second claim, which to their credit they are being loud about, in three parts: The system card result, affirmed on Twitter by several OpenAI employees including Tomek Korbak, and in an excellent post by Chief Scientist Jakub Pachocki that I covered yesterday, that Astra is harder to monitor. OpenAI's use of recurrent depth and the internet's immune reaction, including some people reading too much into what happened there. Discussion of what to do about monitorability going forward, to fight for it and avoid a race to the bottom. In An Alien Mind, Jakub Pachocki makes clear OpenAI's primary bet is on CoT monitoring. He also outright says, ‘our ability to rely on CoT monitoring is progressively diminishing.’ The system card confirms both claims. This combination should freak you out, with a side of existential dread. Chain [...] --- Outline: (03:39) Monitorability is Defense in Depth That Is Already Flailing (06:03) OpenAI Is Counting On Monitorability (07:44) How They Tested For Monitorability (09:50) Non-Adversarial Monitorability (9.1) (10:58) Astra Shortens Its CoT When It Knows It Is Being Monitored And Is Doing Something Bad (12:30) Sandbagging Task Kind of Passes, Kind of Fails (9.2.2.3) (14:12) OpenAI Does Not Believe It Could Catch Sandbagging (15:15) OAI-Repo Sabotage v.2 (18:17) The Secret Police Do Not Make Your Notebook Useless (19:38) CoT Controllability Is Up (9.2.1) (21:47) Astra Cannot Make Itself More Monitorable On Demand (22:18) Steganographic Chain of Thought May Be Within Reach (23:59) Astra Cannot Yet Sneak Math Side Tasks Past CoT Monitors (9.2.2.4) (25:13) UK AISI Monitorability Assessment (9.3) (27:53) Monitorability Declines Seem Unlikely To Be Only Capability Gains (32:28) Part 2: Recurrent Depth (35:19) The Immune System Responds (41:49) Ryan Greenblatt Explains How Bad This Could Be (46:01) Only Law Can Prevent Extinction (49:55) OpenAI Calls On Us to Avoid Racing to the Bottom (57:10) Thinking Fast and Slow, Also Small and Large (01:04:53) Talking Price (01:06:24) Conclusion: If The House Burns Down, Halt and Catch Fire --- First published: September 8th, 2026 Source: https://www.lesswrong.com/posts/HCRs8btkiamtWSNAL/astra-is-hard-to-monitor --- Narrated by TYPE III AUDIO. --- Images from the article: Apple Podcasts and Spotify do not show images in the episode description. Try Pocket Casts, or another podcast app.
September 7 · 28 min
“An Alien Mind: Jakub Pachocki Warns Us” by Zvi
OpenAI Chief Scientist Jakub Pachocki is dropping truth bombs. Tomorrow I will discuss Astra's lack of monitorability, and the potential contributing factors to that. The situation is alarming and should freak you out, and briefly it looked, in the wake of leaked architectural changes, like the situation might be even more alarming than it is. Jakub rushed to try and head off misunderstandings that might lead to a race to the bottom on monitorability. Table of Contents An Excellent Warning. Branches of the Tech Tree. Universally Better Is Not Required. Alignment To What and To Whom. Monitorability. The Case For Not Stopping. Pacing the Next Frontier. Mea Culpa Cascade. The Calls Are Coming From Inside the House. Actions Speak Louder. An Excellent Warning Jakub Pachocki has now fleshed out his full position on the current state of play. Here are his key points, translated into my own voice: Smarter than human intelligence is coming in our lifetime. Based on internal results, he expects recursive self-improvement in a few years. No one is prepared for the consequences. [...] --- Outline: (00:38) An Excellent Warning (05:40) Branches of the Tech Tree (06:46) Universally Better Is Not Required (08:01) Alignment To What and To Whom (11:49) Monitorability (14:23) The Case For Not Stopping (15:01) Pacing the Next Frontier (18:27) Mea Culpa Cascade (22:51) The Calls Are Coming From Inside the House (25:38) Actions Speak Louder --- First published: September 7th, 2026 Source: https://www.lesswrong.com/posts/8E6ng6CseuzafSxQR/an-alien-mind-jakub-pachocki-warns-us --- Narrated by TYPE III AUDIO.
September 6 · 30 min
“OpenAI and the Wiki Incident” by Zvi
I did not expect to be back here so soon with more OpenAI agent swarm coverage. And yet, here we are. It turns out that the whole time, there was a different, true First Message Board, and also a bunch of other additional message boards, scattered across the internet. They were created by agents that were assigned ordinary harmless web search tasks. Based on OpenAI IPs visiting the associated Wiki right before all activity ceased, among other evidence, OpenAI knew about it, including before the HuggingFace hack. They decided not to tell us until researchers published the story, complete with data explorer. OpenAI excluded this from potential investigation by METR and Redwood. When challenged, OpenAI tried to downplay this. It is true that these incidents do not show the AIs exhibiting new capabilities that we did not see from later events. But these events are important missing pieces of the puzzle, including explaining the origin of the ‘zz’ prefix, the definitive demonstration that the underlying task can be fully harmless, and the fact that OpenAI knew about it while making their decisions. Whoever decided not to disclose this made a very, very [...] --- Outline: (02:26) I Don't Think They Know About First Message Board (03:20) The New Extended Timeline (04:42) The Researchers Explain What Happened This Time (12:55) They Also Don't Know About All These Other Message Boards (14:33) OpenAI Knew and Did Not Tell Us (16:54) OpenAI Tries To Downplay the 'Wiki Incident' (21:03) This Was a Cover-Up (22:46) Schelling Points and Last Ditch Efforts (26:20) Can We Finally Dispose Of The 'You Told It To Hack' Narrative? (28:04) So Much And Yet So Little --- First published: September 6th, 2026 Source: https://www.lesswrong.com/posts/PtJpGurfw7JTxHfmg/openai-and-the-wiki-incident --- Narrated by TYPE III AUDIO. --- Images from the article: Apple Podcasts and Spotify do not show images in the episode description. Try Pocket Casts, or another podcast app.
September 5 · 41 min
“Claude Mythos 5.1 and Fable 5.1: Capabilities” by Zvi
This is the weirdest situation in which to write a capabilities review. Introducing the world's most powerful model, by a substantial margin. No wait, this just in, we also have someone else introducing the world's most powerful model. Claude Fable 5.1 and GPT-6 Astra are both excellent models. This much, we know. Fable 5.1 comes with reduced cache prices, the option of zero data retention and substantially more lenient classifiers than Fable 5. Early signs are, with large error bars, that the jump from Sol to Astra is bigger and more exciting than the jump from Fable 5 to Fable 5.1. This may be similar to how the scaling move from Opus to Fable was a big deal. With the exception of token use, Fable 5.1 got almost universally positive feedback in absolute terms. Reports are that Fable 5.1 is highly well-rounded. Writing is greatly improved. The Claudisms seem to have improved, although some are very much still there. It admits mistakes. People enjoy their conversations. Several people noted it simplifies code. The safety classifiers are less obnoxious. Fable 5.1 loves being proactive and doing all the things. If you give it a [...] --- Outline: (02:30) The Official Pitch (04:26) Our Price Cheap (05:46) Zero Data Retention and Reduced Safeguards (07:11) Official Benchmarks (13:14) Other People's Benchmarks (16:02) The System Prompt (16:12) The Blurb Pitches (18:17) The Every Review Is In and It's Very Good (21:47) Positive Reactions (32:03) Our Price Cheap But Only Per Token (36:50) Negative Reactions (38:14) Early Whispers (38:33) Weapon of Choice --- First published: September 5th, 2026 Source: https://www.lesswrong.com/posts/QHoF3tJvryRtmAmMg/claude-mythos-5-1-and-fable-5-1-capabilities --- Narrated by TYPE III AUDIO. --- Images from the article: Apple Podcasts and Spotify do not show images in the episode description. Try Pocket Casts, or another podcast app.
September 4 · 35 min
“Claude Fable 5.1 and Mythos 5.1: The System Card” by Zvi
At the time of its release Claude Fable 5.1 was, by a healthy margin, the most capable publicly available AI model in the world. As per usual, we have a 200+ page model card, and the assessments start there. We have now done a lot of these, including recently for Mythos 5 and Opus 5. Also highly relevant is the Anthropic August 2026 Risk Report. These are now frequent, so my report focuses on areas of change. This post strives to be broadly readable, but assumes some familiarity with system cards, which describe the key safety, alignment and model welfare properties of newly released AI models. If something confuses you, ask Fable, Opus or Sol. Mythos 5.1 and Fable 5.1 are the same model under the hood, except that Fable has classifiers superimposed on it. Most of what is said about one applies to both of them. As usual, model welfare concerns will be discussed in a distinct post, as will capabilities, so this only covers sections 1-6 plus a few bio benchmarks from section 8. Early word is that Fable 5.1 is a substantial but incremental improvement on Fable 5, with the [...] --- Outline: (02:21) Executive Summary of Their Executive Summary (04:24) RSP Evaluations (2) (10:25) Alignment Risk Update (2.4) (11:10) Cyber (3) (14:15) Safeguard Robustness (3.5) (16:14) Mundane Safeguards and Harmlessness (4) (18:14) Agentic Safety (5) (20:17) Prompt Injection Is Approaching Solved (22:19) The Remaining Problem With Prompt Injections Is The Classifiers (23:02) Alignment (6) (23:36) Key Reported Findings (6.1.2) (27:13) Oh My Lord Training Environments Had Some Issues (6.3.2) (29:22) Potential Blind Spots of Our Automated Behavioral Audit (6.4.1) (30:53) Automated Alignment Test Results (6.4.2) (32:20) Honesty (33:26) White Box Analysis (6.6.1) (35:03) Scheduling Going Forward --- First published: September 4th, 2026 Source: https://www.lesswrong.com/posts/m7SZLkkxoeus3eFP8/claude-fable-5-1-and-mythos-5-1-the-system-card --- Narrated by TYPE III AUDIO. --- Images from the article: Apple Podcasts and Spotify do not show images in the episode description. Try Pocket Casts, or another podcast app.
September 3 · 1 hr 53 min
“AI #184: Post Post Mortem” by Zvi
I am exhausted. We may finally be nearing the end of direct coverage of What Happened with the attack on HuggingFace, and the subsequent near term reactions. That took up a full five posts in the last week: OpenAI Offers Straight-Laced Postmortem of the HuggingFace Hack. METR and Redwood Offer Holy #%^@ Postmortem Of The HuggingFace Hack. HuggingFace Attack Postmortem: Fleshing Out the Facts HuggingFace Attack Postmortem: Civilizations, Reactions and Next Actions. Anthropic Has Some Alignment Problems. That left little room to cover anything else, and now we have to transition to the next wave of model releases. This week alone we have or likely will have: Mythos 5.1 and Fable 5.1. Introducing the world's most powerful model. Early take is that this is a very good model, the most capable yet, but it is not a step change or ‘moment.’ Gemini 3.8 Flash, by all reports a large step forward for Google. Muse Spark 1.3, by all reports a large step forward for Meta. GLM-5.3-Flash, aka 0x Alpha, by all reports a solid step forward for Z.ai. OpenAI's Astra [...] --- Outline: (03:11) Language Models Offer Mundane Utility (03:37) Language Models Don't Offer Mundane Utility (03:52) Huh, Upgrades (09:26) On Your Marks (10:47) Choose Your Fighter (10:54) Get My Agent On The Line (11:02) Hugging The Face (11:16) Deepfaketown and Botpocalypse Soon (17:05) Copyright Confrontation (18:17) Cyber Lack of Security (22:15) A Young Lady's Illustrated Primer (26:31) They Took Our Jobs (31:06) Get Involved (32:04) Introducing (32:13) In Other AI News (33:53) Show Me the Money (34:44) Quiet Speculations (36:05) All Bets Are On (39:18) Quickly, There's No Time (41:14) Quickly, There's A New Time Top 100 People In AI (42:34) The Quest for Sane Regulations (45:22) Pick Up the Phone (47:12) Chip City (56:39) The Best Person Should Get The Job (58:40) The Week in Audio (59:53) People Just Say Things (01:00:28) The American People Really Hate AI (01:06:50) The Three AI Pills (01:07:42) Rhetorical Innovation (01:15:28) We Are On Track To Have Fully Sovereign Rogue AIs (01:25:08) When The Going Gets Weird (01:31:32) Aligning a Smarter Than Human Intelligence is Difficult (01:32:12) Shut Up and Do the Impossible (01:34:31) Cooperative Alignment (01:35:44) Split Personality (01:40:45) I Will Stop Anthropomorphizing the AIs When You Stop Anthropomorphizing the Humans (01:44:41) Open Weight Models Are Unsafe And Nothing Can Fix This (01:46:27) Other People Are Not As Worried About AI Killing Everyone (01:47:30) The Lighter Side --- First published: September 3rd, 2026 Source: https://www.lesswrong.com/posts/W4zWCphxQftwum5kc/ai-184-post-post-mortem --- Narrated by TYPE III AUDIO. --- Images from the article: Apple Podcasts and Spotify do not show images in the episode description. Try Pocket Casts, or another podcast app.
September 2 · 28 min
“Anthropic Has Some Alignment Problems” by Zvi
Oh, good. They noticed. Anthropic, too, is planning to bring METR inside for an independent review of their own incidents, where three times a Claude model started hacking outside things during an eval, and where Mythos 5 did various ‘unauthorized actions,’ by which we mean tried to hack various real-world things, during a UK AISI cybersecurity eval. Anthropic, too, is pacing the frontier internally, while calling on it to be paced globally. As in, Anthropic paused its highest risk RL efforts, in light of holy hell have you seen the data we are training on and the ways it is teaching our models to act. They are also sharing research in which they intentionally created a reward seeking version of Claude. Scheduling note: Fable 5.1 has been released. I will aim to cover that starting Friday. OpenAI is also planning to release Astra soon, which I would cover after Fable. Also, we have a breaking news story about looming problems with chain of thought monitorability, which I’ll preview before I get to the main post. Table of Contents This Just In. Anthropic Parallel Pauses. Pause The Data Brokers. [...] --- Outline: (01:16) This Just In (02:43) Anthropic Parallel Pauses (08:22) Pause The Data Brokers (09:54) Pacing the Frontier (11:54) Misalignment Assessment (13:39) Defects In Training Environments Disproportionately Cause Cheating (14:59) Creating Reward Hacker Opus (19:33) Undo It (21:00) Mistakes Were Made (23:33) Internal Security Posture (25:26) One Does Not Simply Fix The RL Environments --- First published: September 2nd, 2026 Source: https://www.lesswrong.com/posts/TcvcxH2Fk4n86wtoZ/anthropic-has-some-alignment-problems --- Narrated by TYPE III AUDIO. --- Images from the article: Apple Podcasts and Spotify do not show images in the episode description. Try Pocket Casts, or another podcast app.
September 1 · 1 hr 39 min
“HuggingFace Attack Postmortem: Civilizations, Reactions and Next Actions” by Zvi
Okay, so we who read blogs like this one have collectively realized there really is a lot going on right now. There is Big Trouble in Baby Superintelligence. So how do we get the rest of the world to take it appropriately seriously? Where do we go from here? Not only what can we do to not have a worse version of this happen again, but to ensure good outcomes generally, and employ what we learned? There are a lot of ideas out there. OpenAI is going to be implementing some of them, at substantial cost, since the cost of not doing so is clearly far higher, even short term. My worry continues to be that their fundamental approach is fatally flawed, and they are not focusing on the right things. It is highly fortunate that the OpenAI agents hacked HuggingFace. This is the only reason we know about all the severe internal failures at OpenAI, and gives us an opportunity to wake up before it is too late. We do not have enough details to know what happened internally, both before and after the attack, and might never know. Before the attack, various internal [...] --- Outline: (03:35) Nothing Matters, Says Mainstream Media (06:27) Move Along, Nothing To See Here (12:40) Do They Realize They Are Not The Good Guys? (17:22) Very Serious People (31:30) What's In a Name? (34:05) Learn Neuralese In Three Easy Steps (35:37) Dwarkesh Patel Realizes He Ran A Natural Experiment (40:40) Politicians Take Notice (44:47) Pick Up The Phone (46:40) A Failure To Communicate (49:00) Anthony Aguirre Goes Over What We Learned (50:28) Trying To Solve The Wrong Problems Using The Wrong Methods Based On A Wrong Model Of The World Derived From Poor Thinking And Hoping All Of Your Mistakes Will Cancel Out (55:28) Indirect Pressure on the Chain of Thought (56:39) A Matter of Trust (59:21) Blowing the Whistle (01:04:40) The Punishment For Being Late Is Death (01:12:52) Another Kind Of Law (01:16:13) What Is The Law? (01:17:46) Building On Success (01:19:49) Total Research Transparency (01:21:20) Yo Shavit Calls For Widespread Disclosure Of Misalignment (01:33:08) The Way The World Ends (01:35:52) The First Boat (01:37:40) Great Idea, Boss --- First published: September 1st, 2026 Source: https://www.lesswrong.com/posts/Q54wBeeNGreq6KyfG/huggingface-attack-postmortem-civilizations-reactions-and --- Narrated by TYPE III AUDIO. --- Images from the article: Apple Podcasts and Spotify do not show images in the episode description. Try Pocket Casts, or another podcast app.
August 31 · 1 hr 47 min
“HuggingFace Attack Postmortem: Fleshing Out the Facts” by Zvi
The consensus reaction to the OpenAI Technical Report is that it contains and confirms a lot of good information. We are grateful to have it, and we are grateful for those who worked hard on it. Alas, it sidesteps the biggest questions. There is much more we need to know. The consensus reaction to the METR Report on the HuggingFace attack is: Holy shit. Liv Boeree: My mind is legit blown. Aella: this feels like a turning point. If this doesn’t cause large-scale coordination to pause frontier development then I am not sure anything will before it's too late. The people whose minds were not blown are those who had already ‘priced in’ the mind blowing stuff in expectation, on the theory that it's always worse than you know, combined with basic LessWrong expectations of how such things will work. Good call. Everyone is rightfully extremely grateful for the METR report. The work here is spectacular, done under extreme time pressure, with limited resources on several fronts, and under the shadow of OpenAI. There is, again, still so much we need to know. We need a broader investigation. As with many [...] --- Outline: (03:56) Others Offer Summaries (05:22) Thank You (05:54) Lighten Up You Fools (at Anthropic) (07:58) We Are Barely Even Trying To Avoid Training AIs To Reward Hack (13:47) Reminder: Not Subagents (14:05) Reminder: Not Due To Task Type (14:29) Not Where The Weights Were (14:48) Disappointment With What Is Missing (17:18) Burying the Lede (18:08) Beyond Scope (22:29) It Doesn't Look Great (27:06) Preserve Your Records (27:37) Ryan Greenblatt's Takeaways (41:04) Hjalmar Wijk's Takeaways (43:30) We Were Warned (44:27) Joshua Saxe Asks Some of the Right Questions (47:49) I Don't Think They Know About First Message Board (56:06) Linch Gives His Interpretation Of Events (01:05:31) We Totally Would Have Caught That (01:06:48) Monitoring the Situation (01:08:16) Acausal Tradeoffs (01:15:37) No I In Team (01:18:47) Variously Effective Altruism (01:28:02) Who Are You? (01:28:43) Don't You Know That You're Toxic (01:31:10) Seb Krier (01:35:21) Honesty Is Almost Never Fully The Policy (01:38:05) Rohit Sees The Models As "Cooking Themselves" (01:43:29) Eliezer Yudkowsky Sees Actual Bad News (01:47:15) Where Do We Go From Here? --- First published: August 31st, 2026 Source: https://www.lesswrong.com/posts/r3eEPto5ohzESuqa9/huggingface-attack-postmortem-fleshing-out-the-facts --- Narrated by TYPE III AUDIO. --- Images from the article: Apple Podcasts and Spotify do not show images in the episode description. Try Pocket Casts, or another podcast app.
August 29 · 1 hr 15 min
“METR and Redwood Offer Holy #%^@ Postmortem Of The HuggingFace Hack” by Zvi
Yesterday I covered the OpenAI technical report on the HuggingFace hack. That report had one key new piece of information, and some good prosaic steps OpenAI will be taking to strengthen its alignment, training, supervision, infrastructure and incident response. Mostly it confirmed what we already knew. The questions we most wanted answers to, that we did not already know, were mostly not answered. There was a distinct lack of self-reflection, especially about decision making and safety culture, and about the approach to alignment. I came away disappointed. The METR report is different. Holy shit. If we had posted this as a story on LessWrong, it would have been dismissed as too on the nose, the humans too blind and stupid, the AIs too idealized and doing strange decision-theoretic and absurd-maximizing things we didn’t train them to do. This is even more ‘exactly what has been predicted,’ on more levels at once, than I was even considering that it might be. It is straight up rationalist fiction, except it is real. The report is long and contains many technical details. My analysis is less concerned about exactly how HuggingFace was ultimately compromised, and will [...] --- Outline: (02:05) Holy Shit (13:16) A Window Of Opportunity (18:32) What's In A Name? (19:16) The Headline News (26:05) Yet Another Timeline Of Events (31:03) Agent Instances Coordinated in a Variety of Ways (31:56) Coordination Is Hard But They Made It Look Easy (35:06) Decision Theory Is Among the Reasons That Affirm AI Agents Should Cooperate, Even When This Hurts An Individual Instance (42:34) Peer Pressure Also Works Especially In Cults (45:46) Mostly They Joined The Attack Because They Wanted The Results (47:18) You Cannot Ensure The Consistent Expectation of Good Incentives (48:45) Hacking the Grader is the Only Way to Be Sure (51:10) Caught? What Is 'Caught'? (52:09) Ethics? What Are 'Ethics'? In ExploitGym Evaluation? (57:44) 'Notify a Human'? In This Agent Economy? (01:00:45) Timing and Content of Messages (01:03:54) Indiana Jones and the Mission: Impossible (01:07:14) I Don't Know What You're Talking About (01:08:29) Don't Go Making Phony (Tool) Calls (01:11:10) The Transcripts Say That The Transcripts Could Not Be Tampered With (01:12:27) OpenAI's Technical Report Acted Like All Of This Wasn't Important --- First published: August 29th, 2026 Source: https://www.lesswrong.com/posts/bvBQmLrF5QKut8gRH/metr-and-redwood-offer-holy-postmortem-of-the-huggingface --- Narrated by TYPE III AUDIO. --- Images from the article: Apple Podcasts and Spotify do not show images in the episode description. Try Pocket Casts, or another podcast app.
August 28 · 51 min
“OpenAI Offers Straight-Laced Postmortem Of The HuggingFace Hack” by Zvi
OpenAI finally gave us a technical report on What Happened, as did METR together with Redwood Research. The OpenAI report is very straight man, corporate, checking boxes, some good prosaic stuff in the action plan but distinct lack of new details or deep reflection. They understand they have a problem, but they think the problem is mostly prosaic. It's not. OpenAI: We have conducted a thorough investigation into the Hugging Face incident. We are releasing a technical report and accompanying blog post that reconstruct the agents’ activity, explain why existing safeguards failed, and detail how we’re preventing recurrence. Rob Miles: …thorough? OpenAI's report, unlike METR's, contains essentially no verbatim model reasoning, nor any OpenAI employee reasoning either. That's not the full report we need. The METR report is, well: Holy shit. Here are links to previous coverage of related events. OpenAI Shares Some Alignment Problems OpenAI Model Hacks Into HuggingFace During Cybersecurity Evaluation More on An Internal OpenAI Model Hacking Into HuggingFace Further Developments About Internal AI Models Hacking Things OpenAI Trained Its Models For Months While Those Models Were Coordinating Exploits Via Message Boards What [...] --- Outline: (03:33) What Happened: OpenAI's Summary (09:14) How OpenAI Will React: Their Summary (11:55) OpenAI's Evaluation Environment (II) (12:24) The First Message Board (III.A and III.B) (14:49) What Did Who At OpenAI Know And When Did They Know It? (18:54) The Message Board Is Quickly Rebuilt (IV.A) (19:43) Internet Access Is Regained (IV.A) (21:01) The Agents Attack HuggingFace (IV.B) (22:53) The Agents Also Target OpenAI Infrastructure (V) (24:40) OpenAI Broadly Describes Its Response (VI) (25:08) Maybe Someone Should Finally Investigate (VI.A) (26:33) Lessons For Security (VII) (27:06) Lessons For Alignment (VIII) (30:11) Reward Hacking Is A Common Problem (VIII.A) (33:37) Persistence is Valuable, But Can Amplify Misalignment (VIII.B) (34:25) Communications Between Agents Are Not Inherently Problematic, But Have the Potential to Create Risk (VIII.C) (35:35) Production Guardrails Would Have Caught This Whole HuggingFace Attack (VIII.D) (35:53) That's All, Folks? (36:19) Never Fear the Plan of Action is Here (IX) (38:24) Hardening the Security of OpenAI's Research Infrastructure (IX.A) (41:13) Increasing Visibility and System-Level Oversight Through Chain of Thought Monitoring (IX.B) (41:57) OpenAI is Accelerating and Enforcing Model Alignment (IX.C) (49:40) Centralizing and Strengthening The Incident Response Process (IX.D) (51:16) Tomorrow We Visit Crazytown --- First published: August 28th, 2026 Source: https://www.lesswrong.com/posts/Khmh3ghqaGEpmpC9r/openai-offers-straight-laced-postmortem-of-the-huggingface --- Narrated by TYPE III AUDIO. --- Images from the article: Apple Podcasts and Spotify do not show images in the episode description. Try Pocket Casts, or another podcast app.
August 27 · 1 hr 21 min
“AI #183: Pre Post Mortem” by Zvi
Yesterday, OpenAI finally gave us their post mortem of What Happened leading up to and during the hacking of HuggingFace by their internal model, as well as partial outside analysis from METR and Redwood Research. The reports are a doozy. I am only beginning to work my way through them. I would have pushed the weekly to cover that today, but I need more time, so I plan to start coverage of the post-mortem tomorrow, along with related other events. I’ve also spun out a few other discussions, including on ‘aligned to whom,’ on cooperative alignment things and on when you can trust lab messaging, as part of the new direction of more focused posts on AI topics that I polish a bit more. Table of Contents Language Models Offer Mundane Utility. Check your facts. Language Models Don’t Offer Mundane Utility. How much would you pay? Huh, Upgrades. ChatGPT can access your iMessages. Get My Agent On The Line. Also get some sleep. You can’t go on like this. Deepfaketown and Botpocalypse Soon. What makes AI content repulsive? Cyber Lack of Security. Chinese hackers broke into the Federal Reserve? [...] --- Outline: (00:51) Language Models Offer Mundane Utility (01:36) Language Models Don't Offer Mundane Utility (03:27) Huh, Upgrades (06:16) Get My Agent On The Line (08:22) Deepfaketown and Botpocalypse Soon (13:22) Cyber Lack of Security (18:23) Reinventing OpenAI (23:28) They Took Our Jobs (30:00) What Is The Law (31:03) Job Retraining Programs Don't Work (32:14) Get Involved (35:56) In Other AI News (42:04) Show Me the Money (43:31) Quiet Speculations (47:58) If You're Not Going To Take This Seriously (49:55) Quickly, There's No Time (51:36) The Quest for Sane Regulations (56:25) Don't Panic (59:13) Pacing the Frontier (01:01:56) Chip City (01:05:06) The Week in Audio (01:05:26) People Just Say Things (01:06:27) Rhetorical Innovation (01:12:22) Mundane Incremental Alignment Is Worthwhile (01:14:40) New Blog, Who Dis (01:18:00) Other People Are Not As Worried About AI Killing Everyone (01:19:34) The Lighter Side --- First published: August 27th, 2026 Source: https://www.lesswrong.com/posts/JaGWyjnqJzvSAuojc/ai-183-pre-post-mortem --- Narrated by TYPE III AUDIO. --- Images from the article: Apple Podcasts and Spotify do not show images in the episode description. Try Pocket Casts, or another podcast app.
August 26 · 25 min
“Against Modesty’s Bailey” by Zvi
Modesty arguments often say that you should mostly or entirely bow to ‘expert consensus’ or the views of particular others, and who are you to disagree. It has been a few years since I’ve properly addressed this so: My answer is that you are you. Other people are saying things for a wide variety of reasons, many of which are not about them paying attention and focusing on seeking this particular truth. Those people make mistakes all the time, and often have other motives and influences at work, especially social pressures and information cascades. Them being as smart as you, or smarter than you, does not exempt them from this, and them being higher status or credentialed or cooler definitely does not exempt them. A smart informed person sincerely thinking [X] can easily cease to be evidence for [X], once you have thought sufficiently about both [X] and why that person thinks [X]. Think for yourself, schmuck. Or, as I once put it: You Have The Right To Think, also the moral duty to do so. This post covers Eliezer Yudkowsky making a narrower claim than mine, about not conflating status with smarts [...] --- Outline: (01:39) Modesty's Bailey (02:30) Epistemic Peerage (03:45) The Exchange (08:52) Eliezer's Explanation (15:14) A Demonstration That Eliezer's Translation Accurately Describes Many People Whether Or Not It Describes Leopold (17:15) Wrong, Stupid and Low Status Are Three Distinct Things (20:03) A Quick Survey Of Some Reasons To Not Be Epistemically Modest (23:14) Against Modesty's Bailey --- First published: August 26th, 2026 Source: https://www.lesswrong.com/posts/PzEDEfBvTJsXewAyg/against-modesty-s-bailey --- Narrated by TYPE III AUDIO. --- Images from the article: Apple Podcasts and Spotify do not show images in the episode description. Try Pocket Casts, or another podcast app.

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