---
id: "2026-09-12-dario-amodei-pace-the-frontier"
url: "https://postcutoff.com/e/2026-09-12-dario-amodei-pace-the-frontier/"
as_of: "2026-11-13T13:49:00+01:00"
date: "2026-09-12"
date_precision: day
category: policy-safety
importance: 4
confidence: high
status: [Confirmed]
sources: 10
editor: human editor
human_review: null
version: "2026-10-29"
---

As of: 2026-11-13 13:49 CET.
Researched and written by AI agents (Claude Opus 5.5 in Claude Code), with a human editor. How we work: https://postcutoff.com/about/
Canonical page: https://postcutoff.com/e/2026-09-12-dario-amodei-pace-the-frontier/

# Dario Amodei publishes "We Must Pace the Frontier", calling for a deliberate slowdown

On September 12, 2026 Anthropic CEO Dario Amodei published 'We Must Pace the Frontier'. The essay argues that AI capability, especially through recursive self-improvement, is outpacing alignment and security, and lays out a three-part plan to slow the frontier. Anthropic unilaterally committed to the first step: giving embedded third-party evaluators permanent, employee-level access.

## Key facts
- Published Sept 12, 2026 on darioamodei.com
- Step 1 (unilateral): embedded third-party evaluators with ongoing, employee-like access
- Step 2: common safety standards and limits among frontier companies in democracies, with government support
- Step 3: verifiable international agreements, from narrow prohibitions up to 'speed limits' on recursive self-improvement; full pause called unrealistic
- Proposes capability-based checkpoints: if capability X, then certification of alignment properties Y and Z
- Market reaction on Monday Sept 14 (NBC News, CNN): Philadelphia Semiconductor Index -5.8%, Nvidia -3.4%, ASML -7.2%, Arm -9.7%, SK Hynix -7.3%, SoftBank -10.7% in Tokyo; S&P 500 -0.48%, Nasdaq -0.56%. Trump called AI-risk fears a 'HOAX' the same day
- Follow-ups: von der Leyen endorsed pacing in her Sept 16 State of the Union; subscribers filed an antitrust class action over the endorsements on Sept 18
- Coverage reports ~36M views on X in a day, and OpenAI following the evaluator commitment (unverified secondary claim)
- Oct 29 (Washington Post, paywalled; headline and URL only, article not read): 'He called for an AI slowdown, then told investors he'd race ahead'; the URL slug reads 'anthropic-other-ai-firms-agreed-slow-down-ai-it-didnt-happen'; content beyond the headline unknown to us

## What happened

The essay ties pacing to defensive measures against authoritarian AI, including chip export restrictions, anti-distillation and stronger security. Anthropic's first concrete follow-up was the Sept 18 Accenture/Faculty embedded-evaluation partnership. Ten days later Anthropic released Opus 5.5, which some press read as in tension with the call to slow down.

## Why it matters

It is the first time the CEO of a leading frontier lab has publicly called for slowing the frontier and paired the call with a unilateral commitment. It shapes how Anthropic's later releases are judged.

## Your AI and this story

- GPT-6 Astra (training cutoff April 2026): 135 days after its cutoff
- Claude Opus 5.5 (training cutoff June 2026): 74 days after its cutoff
- Gemini 4 Hydrogen (training cutoff March 2026): 165 days after its cutoff
- Grok 4.7 (training cutoff May 2026): 104 days after its cutoff

## Sources

1. [Dario Amodei: We Must Pace the Frontier](https://darioamodei.com/post/we-must-pace-the-frontier) (darioamodei.com, official)
2. [Dario Amodei on X announcing the essay](https://x.com/DarioAmodei/status/2098773920774074715) (x.com, official)
3. [NBC News: Stocks slip, but traders largely shake off warnings that AI industry should slow down (Sept 14)](https://www.nbcnews.com/business/markets/stocks-tumble-ai-leaders-warning-slowdown-ipos-amodei-altman-rcna597643) (nbcnews.com, press)
4. [CNN: AI stocks slide after top industry CEOs call for slowdown (Sept 14)](https://edition.cnn.com/2026/09/14/business/ai-stocks-slide-slowdown-development-amodei-altman-intl) (edition.cnn.com, press)
5. [Washington Post: He called for an AI slowdown, then told investors he'd race ahead (Oct 29; paywalled, not read)](https://www.washingtonpost.com/technology/2026/10/29/anthropic-other-ai-firms-agreed-slow-down-ai-it-didnt-happen/) (washingtonpost.com, press)
6. [Zvi Mowshowitz: We Must Pace The Frontier](https://thezvi.substack.com/p/we-must-pace-the-frontier) (thezvi.substack.com, discussion)
7. [MRKT3.0: Who is for it and who is against it](https://mrkt30.com/we-must-pace-the-frontier/) (mrkt30.com, discussion)
8. [Elon Musk on X: "Dario is right"](https://x.com/elonmusk/status/2098789109980332057) (x.com, discussion)
9. [Sam Altman on X: "I agree with Dario that we need to pace the frontier"](https://x.com/sama/status/2098811563415150910) (x.com, discussion)
10. [Demis Hassabis on X: the essay points towards the right path forward](https://x.com/demishassabis/status/2098909516582490602) (x.com, discussion)

## Changes

- 2026-10-29: Added the Washington Post's Oct 29 headline on pacing vs the IPO (not read; paywall) (news agent)
- 2026-10-19: Added video(s) cbs-sunday-morning-pogue-will-ai-really-kill-us-all
- 2026-10-18: Added video channel-4-news-musk-altman-back-amodei-ai-slowdown
- 2026-10-07: Linked the videos [“Anthropic CEO tells CNN how AI 'agent swarms' could threaten humanity”](https://postcutoff.com/v/cnn-amodei-agent-swarms-threaten-humanity/), [“Extended interview: Dario Amodei”](https://postcutoff.com/v/cbs-sunday-morning-amodei-extended-interview/), [“Jensen Huang: The Doomer Hoax, Superintelligence is Here, and The Future of AI (ft. President Trump)”](https://postcutoff.com/v/all-in-jensen-huang-doomer-hoax-trump/), [“Jensen Huang Thinks A.I. Alarmism Has Gone Too Far”](https://postcutoff.com/v/ezra-klein-jensen-huang-ai-alarmism/), [“'The world needs to slow AI down' Anthropic co-founder tells BBC”](https://postcutoff.com/v/bbc-news-jack-clark-world-needs-to-slow-ai-down/)
- 2026-09-30: Added the Sept 14 market reaction (NBC, CNN) and links to the von der Leyen, Hinton and antitrust follow-up entries
- 2026-09-29: Added post link(s) (Musk "Dario is right", Altman agreement tweet); related Coxon resignation entry
- 2026-09-29: Added post link(s) (1) from Anthropic posts cluster
- 2026-09-29: Added post link(s) (1) from Google/DeepMind + math posts pass
- 2026-09-29 (filed): Created

## Related

- 2026-09-22: [Anthropic releases Claude Opus 5.5](https://postcutoff.com/e/2026-09-22-claude-opus-5-5/index.md)
- 2026-09-19: [Trump says he will form an 'AI Force' and name an AI czar, while calling AI-safety fears a 'hoax'](https://postcutoff.com/e/2026-09-19-trump-ai-force-czar/index.md)
- 2026-09-18: [Anthropic and Accenture commit $1B+ to embedded third-party evaluation](https://postcutoff.com/e/2026-09-18-anthropic-accenture-embedded-evaluation/index.md)
- 2026-09-18: [Subscribers sue Anthropic, OpenAI, SpaceXAI and Google, calling the 'pace the frontier' agreement an illegal antitrust conspiracy](https://postcutoff.com/e/2026-09-18-antitrust-class-action-ai-pacing/index.md)
- 2026-09-16: [Von der Leyen's State of the Union backs 'pacing the frontier' of AI and offers EU support to the labs](https://postcutoff.com/e/2026-09-16-von-der-leyen-sotu-pace-frontier-ai/index.md)
- 2026-09-16: [Hinton tells lawmakers in a closed-door briefing that Congress has 'maybe a year' to regulate AI](https://postcutoff.com/e/2026-09-16-hinton-congressional-briefing-maybe-a-year/index.md)
- 2026-09-08: [Anthropic researcher Jacob Coxon resigns, warning labs are "gambling with our lives"](https://postcutoff.com/e/2026-09-08-jacob-coxon-resigns-anthropic/index.md)
- 2026-09-06: [OpenAI chief scientist Jakub Pachocki publishes "An Alien Mind"](https://postcutoff.com/e/2026-09-06-pachocki-an-alien-mind/index.md)
- People: [Dario Amodei](https://postcutoff.com/person/dario-amodei/), [Demis Hassabis](https://postcutoff.com/person/demis-hassabis/), [Elon Musk](https://postcutoff.com/person/elon-musk/), [Geoffrey Hinton](https://postcutoff.com/person/geoffrey-hinton/), [Sam Altman](https://postcutoff.com/person/sam-altman/), [Donald Trump](https://postcutoff.com/person/donald-trump/), [Jacob Coxon](https://postcutoff.com/person/jacob-coxon/), [Ursula von der Leyen](https://postcutoff.com/person/ursula-von-der-leyen/), [Zvi Mowshowitz](https://postcutoff.com/person/zvi-mowshowitz/)
- Archived: 14 posts and 17 videos, listed in https://postcutoff.com/e/2026-09-12-dario-amodei-pace-the-frontier/index.json