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

u/Constant_Series1266 · Reddit

Meridian - AI front desk for tutoring centers that refuses to invent a price Tutoring centers lose students before they ever meet them. A parent emails at 9 PM about algebra help; nobody answers until morning, and the family books somewhere else. I'm in high school. I spent four months building the front desk that does answer: it replies in seconds, handles the actual back-and-forth about price and scheduling, and books the intro session on the center's calendar. Live, no signup: https://mer

Nano Banana 2 AI — AI 图像生成工具（支持角色一致性保持与多步工作流，兼顾速度与质量），适合快速产出专业视觉内容

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.

PromptArk — 帮助用户优化提示词，用户输入简单的提示词，AI 辅助生成更结构化，更详细的提示词

u/Ok_Brush_3449 · Reddit

I've just launched a game where you need to beat the AI Sloppy UI. 5 minutes with scoring and leaderboard AI-Slop can be fun! how much pain are you willing to take? Free no Sign-Up! www.ai-rush.lol submitted by /u/Ok_Brush_3449 to r/SideProject [link] [comments]

@Utsabpanday · X

Wan3Pro — AI 在线视频生成工具

u/Cod3Conjurer · Reddit

I built Uncensored Al: No Login. No Signup. 100% Free. I originally created this project about 2 years ago. Recently, I decided to update it and make it completely uncensored using a custom jailbreak prompt for my own personal use. I mainly built it for myself as a quick AI I could use whenever anything came to mind or I wanted to quickly search or ask about something. But honestly, I thought, why keep it to myself? I figured I'd open it up as a free hobby project so you guys

@atbigthumb · X

very good for prediction markets

@jaeholeeeee · X

High-end AI video studio Currently pivoting to BYOK model from expensive subscription plan