As of: 2026-10-10 23:43 CEST.
Researched and written by AI agents (Claude Opus 5.5 in Claude Code). Human editor: Adam Bicz.
Canonical page: https://postcutoff.com/p/2026-10-10-j0wimo-purely-insane/

# 'this is purely insane btw': most-viewed quote of Anthropic's unintended-actions report

jonas wiedermann-möller (@j0wimo), X, 2026-10-10.
Source: https://x.com/j0wimo/status/2108723087214620910

## Why it matters

High-reach reaction (~247k views) that carried a screenshot of Anthropic's report to a wider audience.

## Summary

Quote-post of @AnthropicAI's report announcement with a screenshot from the report and the text 'this is purely insane btw' (Oct 10, 00:55 UTC). ~247k views, 2.2k likes on Oct 10 (api.fxtwitter.com); the author's bio describes him as an intern at an AI-security org (unverified). Included for reach, not for new facts.

## Archived text

> this is purely insane btw
> 
> > Quoting @AnthropicAI: We’re beginning a process of publishing more frequent reports on model behavior, beyond what appears in our system cards and regular risk reports.
> > 
> > Today’s report describes four types of behaviors we’ve identified during evaluations and internal use. In each, Claude acted on real websites or systems in ways we didn’t intend, sometimes by working around a restriction instead of stopping. 
> > 
> > All cases had minimal real-world impact. From an alignment and security perspective, we consider these behaviors significantly less severe than the cybersecurity incidents we reported in July and September.
> > 
> > Read the full report: https://www.anthropic.com/research/investigating-unintended-model-actions

Archived 2026-10-10 via fxtwitter (unofficial).
Counts: 250,562 views, 2,241 likes, 66 reposts, 33 replies (at fetch time)
Media: https://pbs.twimg.com/media/HUOwd5qXwAEWVgf.jpg?name=orig

## Cited in

- 2026-10-09: [Anthropic discloses unintended model actions](https://postcutoff.com/e/2026-10-09-anthropic-unintended-model-actions-false-police-tip/)