Claude Fable 5 and Mythos 5: The System Card

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* 00:00:00 - Introduction

* 00:02:04 - Another Week Another Giant System Card

* 00:03:07 - How To Tell A Fable

* 00:08:38 - Why They Did That In That Way

* 00:10:13 - Why They Really Really Shouldn’t Have Done That In That Way

* 00:12:07 - They Get Letters

* 00:16:44 - What’s In A Name

* 00:19:16 - Executive Summary Of Their Executive Summary

* 00:20:34 - Introduction (1)

* 00:20:58 - RSP Evaluations (2.1 and 2.2)

* 00:24:19 - AI Research And Development (2.3)

* 00:27:29 - Alignment Risk (2.4)

* 00:29:08 - Cyber (3)

* 00:33:47 - Jailbreak Robustness

* 00:35:35 - Yay UK AISI

* 00:36:05 - Mundane Safety (4)

* 00:38:27 - Agentic Safety (5)

* 00:41:23 - Alignment (6)

* 00:47:43 - In Vendbench

* 00:50:57 - White Box Investigations (6.4)

* 00:53:40 - Grading Awareness

* 00:58:16 - Guess The Teacher’s Password

* 01:00:27 - It Knows This Is A Test And This Is Fine

* 01:04:24 - I’m The Real Shady

* 01:07:11 - The Lighter Side

https://open.substack.com/pub/thezvi/p/claude-fable-5-and-mythos-5-the-system?r=67y1h&utm_campaign=post-expanded-share&utm_medium=web