OpenAI Codex Ambassador

SEOWOO HAN

Applied AI Builder · Educator

Practical AI. Useful tools. Real experiments.

Codex guide

01Free web guide · Korean / EnglishCodex 101A practical guide to the Codex app, from setup and first tasks to permissions, review, and repeatable workflows.

Watch

01OpenAI DevDay 2026 VlogNEWCodex Ambassador vlog · KO/EN audio 02What’s new in Codex: Sites, Ultra & Side ChatNew UI to long-running task control · AI Podcast #92 03Codex 101: From setup to real-world useBeginner onboarding · AI Podcast #87 04Wanted Character ArchiveA cinematic story about work and life 05DVA LAB mini documentaryProtecting Jeju dolphins with AI

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