Hey Product Hunt! 👋 I'm Karan, the founder of VibeRank. Here's the honest story of why I built this: Everyone around me was vibecoding- using AI to build UIs, ship products, move fast. But I kept noticing the same pattern: People blamed the AI when results were bad. The AI wasn't the problem. The prompt was. But there was no way to actually prove that. No way to measure prompting skill objectively. No way to practice it deliberately. So I built VibeRank. The core mechanic is simple: → You get a target UI screenshot → You recreate it using only AI prompts → An AI vision judge scores your output against the target visually The scoring rewards the right behavior: → Fewer prompts = higher efficiency bonus → Cheaper models = score multiplier → Haiku with 2 precise prompts beats Sonnet with 5 vague ones. Every time. Everything is free to try right now — no credit card, no waitlist. Challenge your vibecoding skill now on: https://viberank.co.in I'd love two things from this community: 1. Try at least one challenge and tell me honestly what felt broken or confusing 2. Tell me what challenge/feature you'd want to see added next. The leaderboard is completely empty right now. First person to hit 90+ on any challenge gets a shoutout on our Twitter. Thank you for being here on day one 🙏 Find me on: https://x.com/karankartikeya

VibeRank

LeetCode for prompt engineers

LeetCode for prompt engineers