GPT‑5.3 Codex Launch Overview

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* 00:00 - Introduction

* 03:07 - Quickly, There’s No Time

* 04:19 - System Card

* 04:50 - AI Box Experiment

* 05:24 - Maybe Cool It With Rm

* 06:59 - Preparedness Framework

* 11:59 - Glass Houses

* 13:04 - OpenAI Appears To Have Violated SB 53 In a Meaningful Way

* 15:23 - Safeguards They Did Implement

* 17:52 - Misalignment Risks and Internal Deployment

* 19:36 - The Official Pitch

* 25:35 - Inception

* 27:15 - Turn The Beat Around

* 28:34 - Codex Does Cool Things

* 30:45 - Positive Reactions

* 38:32 - Negative Reactions

* 41:03 - Codex of Ultimate Vibing

https://open.substack.com/pub/thezvi/p/chatgpt-53-codex-is-also-good-at?utm_campaign=post-expanded-share&utm_medium=web