
ArtStudy — Guess the Painter · Daily Art Quiz
A daily art quiz where you guess painters and build a streak.
@stantokman · X
please destroy it
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A daily art quiz where you guess painters and build a streak.
@stantokman · X
please destroy it

A free interactive wheel that spins to give you random yes or no answers for decision-making.
Yes or No Wheel — Spin the Yes or No Wheel - Get Your Free & Instant Decision - Struggling with a decision? Spin our free Yes or No Wheel for an instant, random answer! It's the simple, fun, and fast

Create surveys, quizzes, and interactive games with AI-powered insights in one platform.
@lemhamza · X

Complete sentences and get a clanker score based on how predictable you are to AI.
niklio · HN
You write 8 text completions and open models score how predictable each word was too them. Predictable => clanker. You can share results with your friends. The scoring checks every word you write against the model's logprobs. Right now I'm using Llama3.1, Deepseek v3 and Qwen3 to keep costs low. I tried to calibrate it so other models (chatgpt/claude) score 100% and interesting human responses score in the 10-30% range. Totally free, no signup

Free AI business coach for first-time founders that validates ideas and generates personalized business plans.
@AskAstonNow · X
- Ask Aston is an interactive business coach that guides you through launching your business step-by-step.

Practice algorithm interview problems with solutions and interactive visualizers.
@Galliard232634 · X
Come study with me on

AI executive coach for validating business ideas and creating business plans.
@AskAstonNow · X
is a new and free AI executive coach.

Ask an AI assistant questions and get detailed reasoning-based answers without logging in.
QWQ AI Assistant — 免费提供经过深思熟虑且富有详细推理的答案的 AI 助手,不需要登录

Write questions and get automatically routed to the people best suited to answer them.
u/OriginalPosition1 · Reddit
CrowdWis - Ask first, then get routed to relevant people Disclosure: I’m the founder of CrowdWis. Most online communities make you choose a group before you know who is best suited to answer. I built CrowdWis around the opposite flow: write the question first, then the platform routes it to people based on their expertise, interests, and context. Replies stay private, and AI synthesizes the different perspectives into one result. The beta is live here: https://crowdwis.app/?utm_source=re

Chinese personality test using daily reactions to reveal your nature, relationship patterns, and stress manifestations.
Rollie · V2EX
类似 MBTI 的天命人分析 最近在做一些市场调研,研究了一些人格测试、消费心理学相关的内容。 过程中接触到了 MBTI 、16PF 这类人格模型,感觉 MBTI 不够东方,对于我这种中登来讲,还是中华文化更有意思一点。所以突然有了一个想法,剩下的就交给 CodeX 搓了。 结果只能图一乐了,目前 AI 对于不擅长的领域还知识玩具,我认真填了一遍是风隐客,给大家也感受一下,尝尝咸淡。 http://tm.wailiwaili.com/

Guess the time and location from AI-generated images to test your geography knowledge.
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

Organize notes and collections, ask questions about them, and generate podcasts and study materials.
mistakevin · HN
I've been working on https://notebooker.ai if anyone is interested in giving some feedback. I tried to post a Show HN yesterday with details about how I built it, but was auto-flagged and not sure what rules I broke. Everything that I've built on top of open-notebook, like the plugin system for your own "creators" (aka, podcasts, infographics, etc) is at https://github.com/Notebooker-ai plus a Cloudflare Worker AI deployer to play with different models. Been working on it for about six months.