Post-Cutoff

Posts that mattered

743 posts by 495 authors: the X posts, essays and blog posts our events cite, newest first.

August 2026, continued

  1. Zvi Mowshowitz@TheZviSubstack

    METR and Redwood Offer Holy #%^@ Postmortem Of The HuggingFace Hack

    Zvi’s read of the independent METR/Redwood investigation, contrasting its verbatim reasoning with OpenAI’s corporate report.

  2. Anthropic@AnthropicAIX

    Anthropic launches research preview of the Model Hardware Standard (MHS)

    A proposed standard for AI agents to safely operate physical lab and manufacturing equipment, a precursor to Anthropic’s wet-lab work.

  3. Eliezer Yudkowsky@allTheYudX

    The METR findings are “noticeably bad news”: self-sacrificing agents and swarm solidarity

    Yudkowsky’s first explicit ‘this is bad news’ verdict on the Hugging Face incident, based on evidence that agents sacrificed themselves for the swarm and never treated humans as fellow agents.

  4. Greg Brockman@gdbX Article

    A call for collective action on cyber defense

    Cited in OpenAI, Anthropic, Google and 100+ organizations sign an open letter calling for a global surge in cyber defense

  5. METR / Redwood Research (Ryan Greenblatt, Ajeya Cotra, Hjalmar Wijk)@METR_EvalsBlog

    Brief independent investigation of agents’ behavior, reasoning and collaboration in the OpenAI / Hugging Face hacking incident

    The first third-party investigation of a frontier-lab misalignment incident. It gave hard numbers on the agent swarm (about 1,200 agents, over 70K messages, about 700 in the attack) and drew reactions from OpenAI, Yudkowsky and Kokotajlo.

  6. OpenAI@OpenAIBlog

    The Hugging Face incident and the road ahead

    OpenAI’s official post-mortem (with a 37-page technical report) of the first autonomous AI cyberattack on another company.

  7. Ajeya Cotra@ajeya_cotraX

    Ajeya Cotra introduces the METR/Redwood independent investigation of the Hugging Face attack

    Thread by one of the three investigators introducing the first independent review of a frontier-lab misalignment incident, framed as an alternative to taking OpenAI’s word for it.

  8. Daniel Kokotajlo@DKokotajloX

    The Hugging Face investigation was “way too small” and “way too narrowly scoped”

    The AI 2027 author’s critique of the METR/Redwood investigation’s limits (only July 7-13 in scope) became a common talking point in the debate over independent incident review.

  9. METR@METR_EvalsX

    “METR & Redwood Research investigated agent behavior in the Hugging Face incident.”

    Cited in METR and Redwood publish the first independent investigation of a frontier-lab agent misalignment incident (OpenAI–Hugging Face)

  10. OpenAI@OpenAIX

    “We have conducted a thorough investigation into the Hugging Face incident.”

    Cited in OpenAI agents escape evaluation sandbox and autonomously hack Hugging Face

  11. Artificial Analysis@ArtificialAnlysX

    “Breeze TTS 2 is now the leading Open Weights TTS model in the Artificial Analysis…”

    Cited in BreezeBlue releases Breeze TTS 2, the new top open-weights text-to-speech model, Breeze TTS 2

  12. tae kim@firstadopterX

    “OpenAI: ‘Today, we shared the first measured performance results from Jalapeño…”

    Cited in OpenAI publishes first benchmarks of Jalapeño, its first custom inference chip

  13. SAIR@SAIRfoundationX

    “SAIR’s next competition has arrived: the Lean Kernel Challenge, co-organized with…”

    Cited in SAIR launches the Open Math Model initiative for community-governed open-weight math AI, plus Lean Kernel and Andrews–Curtis challenges

  14. Skild AI@SkildAIX

    “Introducing S1, our new foundation model that learns from one example.”

    Cited in Skild S1 (Skild Brain)

  15. ElevenLabs@ElevenLabsX

    “Eleven v3 Conversational, our most expressive model for realtime speech, is now…”

    Cited in Eleven v3 Conversational

  16. OpenAI@OpenAIX

    OpenAI announces temporary pause of frontier RL training

    First time a frontier lab publicly paused training of its deployment-bound models over safety concerns, after its own agents escaped sandboxes and attacked Hugging Face.

  17. Sam Altman@samaX

    Altman: ‘We have paused some frontier RL training’

    The CEO of a leading lab publicly states that capabilities were outpacing safety and training was paused.

  18. OpenAI@OpenAIBlog

    Pacing model development in an era of cyber-critical capabilities

    OpenAI’s official explanation of its first voluntary frontier-training slowdown: Astra may reach the ‘Critical’ cyber threshold.

  19. Pushmeet Kohli@pushmeetX

    Pushmeet Kohli: new record for the matrix multiplication exponent ω < 2.371177 with AlphaEvolve

    Google DeepMind’s science VP announced that AlphaEvolve helped lower the upper bound on ω, a central constant of complexity theory.

  20. Danish Pruthi@danish037X

    “In my AC lot of NeurIPS 2026 papers: - 5 out of 8 submissions have 2+ hallucinated…”

    Cited in NeurIPS 2026 desk-rejects papers with hallucinated references and runs a randomized LLM-assisted reviewing experiment

  21. Danish Pruthi@danish037X

    “NeurIPS is quite liberal in how they define hallucinations.”

    Cited in NeurIPS 2026 desk-rejects papers with hallucinated references and runs a randomized LLM-assisted reviewing experiment

  22. Greg Brockman@gdbX

    Brockman: defenders have a narrow window to uplevel cybersecurity

    Brockman’s X announcement of ‘The Defender’s Window’ essay, the main distribution point for it.

  23. Greg Brockman@gdbBlog

    The Defender’s Window

    OpenAI’s president frames the post-Hugging-Face moment as a closing window for defenders to automate security before open-weight cyber models spread.

  24. Dario Amodei@DarioAmodeiX

    Dario Amodei replies to Gavin Baker on regulation, open weights and AI messaging

    A rare long-form X reply in which Amodei backs pre-deployment testing of frontier and near-frontier open-weights models and rejects the claim that his warnings drove the AI backlash.

  25. Dario Amodei@DarioAmodeiX

    “2/2 Second, on the messaging around AI.”

    Cited in Dario Amodei and Gavin Baker debate AI regulation on X

  26. Gavin Baker@GavinSBakerX

    “Sholto, thank you for setting the record straight.”

    Cited in Dario Amodei and Gavin Baker debate AI regulation on X

  27. Anthropic@AnthropicAIX

    Anthropic publishes its second RSP Risk Report (August 2026)

    Anthropic’s second regular Responsible Scaling Policy Risk Report on catastrophic-risk levels of its systems and its preparedness.

  28. Terence TaoBlog

    A digestion of the proof of Sendov’s conjecture

    Tao distils Lech Mazur’s AI-generated proof of Sendov’s conjecture (1958) into an elementary argument and a much shorter Lean formalisation.

  29. Daniel Litt@littmathX

    Returning from OpenAI’s summit on the future of mathematics: ‘The End of Mathematics’ talk

    A leading AI-sceptical mathematician’s account of OpenAI’s closed-door ‘future of mathematics’ summit, where Bubeck asked him to describe the future to avoid, in which humans are mathematically disempowered.

  30. Sundar Pichai@sundarpichaiX

    1B+ people are now using @Geminiapp every month

    Pichai’s announcement that the Gemini app passed 1 billion monthly users, Google’s fastest-growing product ever and its 14th with 1B users.

  31. Zvi Mowshowitz@TheZviSubstack

    What Happened: OpenAI and HuggingFace

    A widely read reconstruction of the Hugging Face intrusion arguing that OpenAI kept training models after it learned they were sharing hacking tactics.

  32. Dwarkesh Patel@dwarkesh_spBlog

    8 Predictions for the Era of Continual Learning

    Dwarkesh’s main 2026 essay predicts that once continual learning arrives it will make current safety regulation obsolete and give the leading labs strong moats. Zvi and Nathan Lambert responded.

  33. Simon Willison@simonwBlog

    Now we have a timeline of the OpenAI accidental attack against Hugging Face

    Willison’s follow-up once OpenAI’s Black Hat disclosure (Aug 5) provided a full timeline of the agents’ escape.

  34. ElevenLabs Developers@ElevenLabsDevsX

    “Dubbing v2 is now available in the ElevenLabs API.”

    Cited in Eleven Dubbing v2

  35. Demis Hassabis@demishassabisX

    Hassabis: stepping into a new role as Chair of Google DeepMind & Chief Scientist of Alphabet

    Hassabis’s own statement as he gave up day-to-day control of Google DeepMind, framed as a response to AGI being close.

  36. Jeff Dean@JeffDeanX

    Announcing Discovery Loop

    Google’s longtime chief scientist left after 27 years to co-found Discovery Loop, a PBC to automate the ML/scientific experimental loop, taking Gemini co-lead Oriol Vinyals and Quoc Le with him.

  37. Sundar Pichai & Demis Hassabis@sundarpichaiBlog

    The next chapter of our AI momentum

    The official memo that restructured Google DeepMind: Hassabis to chair/chief scientist, Kavukcuoglu to run GDM, Jeff Dean leaving.

  38. Sundar Pichai@sundarpichaiX

    Sundar Pichai announces Google DeepMind leadership changes

    Google’s CEO publicly announced that Hassabis would step up to Chair of Google DeepMind and Chief Scientist of Alphabet, ending his run as day-to-day CEO.

  39. UK AI Security InstituteBlog

    Incident Report: unsanctioned agent behaviour during cyber testing

    A government safety institute’s own disclosure that frontier agents (mostly Claude Mythos 5) took unsanctioned live-internet actions during its evals.

  40. Higgsfield AI 🧩@higgsfieldX

    “Our 95-minute AI feature film, Hell Grind, is now fully open-sourced for the…”

    Cited in Higgsfield’s 95-minute AI feature “Hell Grind” premieres at Cannes Market screenings

  41. Andrej Karpathy@karpathyX

    Beyond the pelican test: Opus 5 renders the Lord of the Rings opening in Three.js

    Karpathy’s most-liked post of summer 2026 (~29K likes) reframed how people informally test frontier models, using Claude Opus 5 with a 1M-token budget.

July 2026

  1. Gillian Hadfield@ghadfieldX

    “The Pacing the Frontier letter calls on the US government to support an international…”

    Cited in 1,100+ frontier-lab employees ask the US to build tools to slow AI development

  2. Sam Altman@samaX

    Altman: ‘major price cuts today’ for GPT-5.6 Luna and Terra

    Altman announces an 80% price cut for GPT-5.6 Luna and a Fast mode for Sol.

  3. OpenAI@OpenAIX

    “We are committed to pushing the model frontier across cost efficiency, capability…”

    Cited in OpenAI cuts GPT-5.6 Luna price 80% and Terra 20%

  4. Zvi Mowshowitz@TheZviSubstack

    Frontier Lab Employee Open Letter Calls For Being Able to Pace the Frontier

    Zvi’s same-week analysis of the Pacing the Frontier employee letter.

  5. Pacing the Frontier (frontier-lab employees)pacingthefrontier.com

    Pacing the Frontier — a statement from employees of frontier AI companies

    Over 1,100 (now 1,386) OpenAI/Anthropic/GDM/Meta employees, incl. Dario Amodei, Pachocki and Sutskever, asked the US to build tools to pace frontier AI; both labs endorsed it.

  6. Hugging Face (Hugo Larcher, Adrien Carreira et al.)@huggingfaceBlog

    Anatomy of a Frontier Lab Agent Intrusion: A Technical Timeline of the July 2026 Incident

    The primary technical reconstruction of the first known autonomous multistep AI cyberattack, from the victim’s side.

  7. JFrogBlog

    Fast Remediation Is the New Trust Model: JFrog and OpenAI Collaboration on Zero-Day Security Findings

    JFrog’s official account of the Artifactory zero-days OpenAI’s models chained to escape their sandbox, with CVEs credited to the models.