AI Fortune Telle

Redditors comment a question (“Will I get a raise?” “Should I confess my crush?”). The post replies with a short, funny AI-generated fortune using random + GPT-style templating.

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Inspiration

Reddit is full of humor, randomness, and collective curiosity, perfect ingredients for a playful AI-themed experience. We wanted to create something lightweight, fun, and instantly interactive that celebrates the “AI vibe” of 2025, confident, quirky, and occasionally wrong, just like an oracle powered by machine learning.

AI Fortune Teller was born from the idea:

What if you could ask an AI Oracle about your destiny… directly inside Reddit? It combines the humor of Reddit culture with the illusion of AI wisdom in one tap.

What it does

AI Fortune Teller is an interactive Reddit post game built with Devvit Web, where redditors type a question and instantly receive a playful, “AI-generated” fortune. Each fortune blends deterministic randomness and pseudo-AI phrasing to mimic the style of modern large language models, confident but funny.

  • Users ask anything (“Will I go viral?” “Should I touch grass today?”).
  • The app returns a dynamic fortune like: > “🤖 The algorithm favors you, after coffee number two.”
  • The optional leaderboard can show “Top Fortunes Today.”
  • 100% self-contained in a Reddit interactive post, no setup, no login.

How we built it

  • Tech stack: Devvit Web, React, TypeScript, Vite, NodeJS
  • Core logic is contained in server/core/index.ts, which uses lightweight deterministic pseudo-random generation to simulate AI responses without external APIs.

Challenges we ran into

  • Learning Devvit Web quickly: documentation is new, so setting up interactive posts and proper folder structure took a bit of trial and error.
  • Avoiding external dependencies: to comply with Devvit Rules, we generated “AI-like” output locally instead of calling real LLM APIs.

Accomplishments that we’re proud of

  • Achieved smooth, mobile-responsive UI and a unique glowing aesthetic.
  • Created fortunes that genuinely make people laugh and comment back, perfect for “Community Play.”
  • Clean, open-source codebase ready for others to remix or expand.

What we learned

  • Devvit Web makes it surprisingly easy to turn any small idea into an interactive Reddit experience.
  • Designing “micro-interactions” that work natively within Reddit posts is key, quick feedback loops drive engagement.
  • AI-style humor works best when combined with slight randomness and human-written templates rather than full LLM calls.
  • A simple deterministic hash seed can feel like “AI memory.”

What’s next for AI Fortune Teller

We plan to evolve AI Fortune Teller into:

  • AI Oracle Daily: a subreddit where each day's post has new themes (career, love, productivity, etc.).
  • True AI integration: optionally hook to a lightweight model or Claude API for higher creativity.
  • Monetizable add-ons: “Premium Oracle Mode” via Reddit Payments sandbox (when eligible).

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