EZQuiz — AI 智能实时测验，让你快速创建、分享并与观众通过实时互动测验进行互动

@rotaercz · X

Built it for my son. 0 MRR but priceless to make a child happy.

TimeGuessr — 给你一张图片，让你猜测图片发生的时间和地点。我们把 Timeguessr 的玩法原封不动地搬了过来，只是把图库换成了另一批“假照片”——全部由 AI 生成的过去 50 年里可能发生的瞬间

ssgonella · HN

QuantumReckon – find your real cloud and AI spend, including tokens

@Starexgames2026 · X

Hey tibo! I made an app using Codex :D it's like X but for vibe coded apps using gpt 5.6 sol! and u can do normal posts :3 its called Appy :D this is the link to it :D

@AskAstonNow · X

- Ask Aston is an interactive business coach that guides you through launching your business step-by-step.

@gravibase · X

Discover how AI agents can turn ideas into content. Try GraviBase today:

@vkuoo · X

Added more demos showcasing graph-math relationships, built with Codex.

@matthew_meadows · X

Introducing Earth's daily zeitgeist, on a map. Trending, corroborated stories that scope to your view. S&P 500 & Today in History. Drop pins, subscribe to locations & follow users. Chat with Marco! Every place has a story...

@pabaprende · X

lemma1729 · HN

Hi HN, This is ProofTree, and in TLDR: it is a platform where you can chat with an AI to do math, the way you already do, with context-awareness and knows how you personally do math, connected to the fora of other live human mathematicians. So, when you are talking to an AI about a proof at 3 am, and you need a human expert looking at it, or a discussion around it, like you do on StackExchange, this is it! You need an approved email account to use it, so please write here if you would live to try it out.

@jitendraballa · X