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OpenAI Build Week

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Engineering the Goal: Building MatchDay with Codex 5.6 Sol
Engineering the Goal: Building MatchDay with Codex 5.6 Sol

How we remotely supervised Codex 5.6 Sol from our phones, using an evidence-gated Peter-style loop to build and deploy MatchDay, a memory-aware 2026 World Cup travel agent, across two sessions

Mohamed Zidan osama zaidan
0 0
CalT: a frictionless calorie tracker for Android
CalT: a frictionless calorie tracker for Android

CalT: AI-powered meal logging that turns a food photo into practical calorie and macro tracking in seconds, built on top of OpenNutriTracker.

ishi vj
2 0
SkillsKit
SkillsKit

skillskit turns cited research into validated, eval-first skills

Domonkos PAL
1 0
ADHDGoFly Plugin, highlight your webpage, and AI inhanced.
ADHDGoFly Plugin, highlight your webpage, and AI inhanced.

An ADHD-friendly, text highlighting browser extension, that turns any webpage into an AI learning workspace for reading, quizzes, vocabulary, images, and charts.

gongde yu
1 0
Terrava Earth
Terrava Earth

Terrava is a global interface for exploring power, place, and time across every polity in recorded history. Behind it, a local agent engine continuously expands, refines, and publishes the atlas.

Mick McGee
2 0
TaxGraph for Software & AI Services
TaxGraph for Software & AI Services

Turn a cross-border AI deal into a source-backed map of tax touchpoints, missing facts, and questions for professional review — before the first invoice is issued.

Kindly-Peacefull Stepanov
1 0
ProveNN
ProveNN

ProveNN cryptographically verifies invoices submitted for expense reimbursement, catching tampered or doctored documents in milliseconds before companies pay out on fraud.

Anshika Sharma Jasmeet  Singh
1 0
Lmpool
Lmpool

Turn fragile LLM API loops into planned, durable, observable workflows.

Hosam Shahin
0 0
Human moment
Human moment

A living hand reaches through the screen, so someone alone can feel a quiet moment of human connection—sent by a person who cares.

Adam Allcock
0 0
OpenOpen
OpenOpen

OpenOpen brings AI to non dev. A personal agent that learns how you work, asks what matters, and multiplies what you can do, with no prompts or technical skills required.

Wenxin Dou
1 0
TMI Prompt Buster
TMI Prompt Buster

It is a privacy layer between you and a cloud AI. It detects sensitive entities using SLM , replaces them with realistic and consistent fake values to maintain context and LLM efficacy

Muhammad Baidul Abdul Samad
0 0
GoGoGiftlist.com
GoGoGiftlist.com

GoGoGiftlist is a web app for organized gifting. It allows users to manage lists by assigning items to different "Givers," automatically generating individualized shopping lists for each person.

Justin Miller
0 0
DeadLane protocl
DeadLane protocl

Motorcycle highway escape game

Scott Chowning
2 1
Roux
Roux

Roux interviews your team, shares what they know back into Codex, and so much more; helping turn team knowledge into smarter, more useful plans.

Bennett Knight Steve Caldwell
4 0
SleepMatch AI
SleepMatch AI

An explainable AI-assisted mattress consultation that turns sleep needs into transparent recommendations and a smarter retail handoff.

mubashirkcjabbar-blip KANNANCHERI
1 0
Catch of the Day
Catch of the Day

A living AI fridge that ages ingredients using FDA guidance and turns what you already own into three daily recipes—reducing food waste while making cooking magical.

lucì Mejias
0 0
Baxtori
Baxtori

A nice way to check out what the code has been up to!

Leo Li
1 0
SupportPilot AI
SupportPilot AI

AI-powered support operations assistant that analyzes tickets, retrieves similar incidents, recommends routing, and suggests resolutions using GPT-5.6 and RAG.

vishavjeet-5ingh Singh
0 0
No Porn Forever
No Porn Forever

most porn blockers are just extensions that can be disabled. this lives constantly in the background and blocks all pornographic websites on the face of this earth.

Parth Nikam
0 0
YiYi
YiYi

YiYi is a voice-first outfit assistant for low-energy mornings. Tell it your plans, and it uses your wardrobe, weather, and preferences to choose one clear outfit—and revise it naturally.

Xiuzhu Du
1 0
Litmus
Litmus

The litmus test for open-source contributions - catches real contributors before they write a line, filters AI slop before it reaches you.

vidhaan khare
0 0
First Chair: a real coach's AI, not generic advice
First Chair: a real coach's AI, not generic advice

I've coached youth basketball for 24 years. First Chair turns my system into an AI coach: GPT-5.6 answers only from my curriculum, cites it, and every session becomes a fileable PE course record.

saint44 St.Julien
2 0
Bestwork
Bestwork

Nobody wants to update their CV. Now that your work happens through agents, you shouldn't have to. Bestwork turns your agent sessions into a living portfolio — drafted as you work, published by you.

Jamaur Bronner
0 0
The Story Scrolls
The Story Scrolls

A rights-first AI studio for source-aware, age-adapted illustrated literature—built for young and reluctant readers.

Cory Boehne
4 0

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