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OpenAI Updates Its Model Spec

November 3, 2026 · 34 min

Show notes

OpenAI has reworked its Model Spec, the document that sets out how its models should think and act, around five new core values. Zvi works through the diff: a demoted rule on side effects, a new risk taxonomy, corrigibility, sycophancy, budgets treated as limits, honesty and lies of omission, and what the model should do when a user insists it pick a side. His main new critique is of the examples themselves: many have overdetermined answers that never show the model how to handle a genuinely hard case. Easy cases, he argues, make neither bad law nor good law.

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* 00:00 - Introduction

* 01:22 - Table of Contents

* 02:05 - Five Values

* 03:16 - Meet the New Spec

* 04:19 - New Risk Taxonomy

* 05:07 - The Letter and the Spirit

* 05:48 - Your Funeral

* 08:11 - Context Clues

* 10:16 - Preserve User Control Over User Control

* 11:04 - Sycophancy

* 12:50 - Lies My User Told Me

* 13:46 - Impact Function

* 16:56 - Levels of Friction

* 18:28 - Do Not Lie

* 24:01 - Pick a Side, We’re at War

* 28:25 - Strengthening Agency

* 31:22 - Decision Theory

* 32:01 - Do Good Things Not Bad Things

https://thezvi.substack.com/p/openai-updates-its-model-spec?r=67y1h&utm_campaign=post-expanded-share&utm_medium=web



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