OpenAI Codex Community Hackathon Hanoi: AI in Your Palm

About this hackathon

A one-day OpenAI Codex community hackathon in Hanoi on Sat, Nov 14, 2026 (9 AM–7 PM ICT), organized by Hanoi Codex Ambassador Doan Nguyen with support from Apero. Theme "AI in Your Palm": build a working mobile prototype where AI is essential to the outcome, using Codex meaningfully, in public services, everyday life and accessibility, work and education, or open. Teams of 3–4 (solo allowed), 150–200 builders, approval required. Pending Codex approval, the top three teams get $1,000 / $500 / $250 in API credits plus three months of ChatGPT Pro per member.

Status
Deadline: 2026-11-14
Starts: 2026-11-14
Who: Open to all (Mobile, web, backend and AI engineers, product builders, founders, designers and students; approval required, up to 300 registrations; teams of 3–4 or solo; full-day attendance)
Level: Intermediate
Prize: No cash (pending Codex approval): $1,000 / $500 / $250 in API credits per team for the top three, plus 3 months of ChatGPT Pro per member
Size: ~200 people
Format: In person · 河内 · International
Location: 河内

Original listing (Chinese)

The full original listing below is in Chinese, as published in the Hack123 newsletter.

一句话简介：OpenAI Codex 河内社区大使办的一日黑客松，⁠‌‌‍‌‌‍‍‌‌‍‌‍‍‌‍‌‍‍‍‍‌‍‍‌⁠主题「AI 在你掌心」，用 Codex 一天做出 AI 是核心功能的手机 App 原型（不是最后才挂个聊天机器人）。

看点：方向可选公共服务与城市生活、日常生活与无障碍、工作与教育或开放题；要从真实用户问题出发，在现场做出核心移动端流程和 AI 功能，交可运行的演示并 5 分钟路演；可用公开库、SDK 和模板，基于旧项目要说明新增部分；预计 150—200 人到场，最多 300 人报名，须审核、有候补；建议 3—4 人一队，可单人；英语和越南语

奖金：无现金奖（待 Codex 批准）：第一名每队 1,000 美元 API 额度，第二 500 美元，第三 250 美元，前三名每位成员另得 3 个月 ChatGPT Pro

截止日期：11 月 14 日（活动当天，河内线下）

活动日期：2026年11月14日 9:00—19:00（河内时间；北京时间 10:00—20:00，Biblio 书咖）

Summarized from the organizer’s page and public posts. Please confirm details on the official site before registering.

OpenAI Codex Community Hackathon Hanoi: AI in Your Palm

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Original listing (Chinese)