Free AI for Everyone — 无需登录、完全免费的 AI（模型包括 Grok 4 Fast、DeepSeek V3.1 等）。可选择的模型以后可能会有所调整，但这个服务会长期提供，并且完全免费

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

new_user___1862026e2883cc743d726f7 · Product Hunt

AI DETECTOR Probably the best AI detector with free no sign-up access.

@orvi_onethread · X

I am looking for beta tester. 😌

hobbescotch · HN

Noema – AI personas debate US listed stocks

douvy · HN

Educational tool for understanding AI agents. Code: https://github.com/douvy/how-agents-think

u/ipleac · Reddit

I built the AI dating friend I kept wishing existed. I've realized I keep using AI for the exact same thing: trying to figure out men. ​ Whenever I get a confusing text, I end up pasting it into ChatGPT and asking: * Is he actually interested? * Am I overthinking this? * What should I reply? * Is this a red flag? The problem is that every conversation starts from scratch. AI doesn't know this is the same guy who disappeared for four days last week, cancelled plans twice, or onl

ahmed_javed3 · Product Hunt

AI text Detector AI Detector — See Exactly Which Sentences Are AI

fendouai · GitHub

humanize-text-skill Free AI Humanizer: Humanize AI Text Online

@isreadyai · X

We help check if AI agents can read your site 💚 Free scan, no signup: — 32 checks in 5 seconds across GPTBot, ClaudeBot, Perplexity & more.

@callable_com_ai · X

create your digital twin with your knowledge base for others to call (and make money?)

u/JarJarBuilds · Reddit

I built a free checker for whether your chatbot breaks the new EU AI law There's an EU rule (AI Act, Article 50) that becomes enforceable Aug 2: if you run a chatbot, you have to disclose it's AI. I kept seeing people unsure whether their setup was compliant, so I built a checker. You paste a URL, it loads the page, finds the chat widget, and tells you whether a clear AI disclosure is present. No signup, no email. Stack, in case anyone cares: Next.js, Convex for the backend, Playwright vi