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Prompt Aftermath

See what an AI prompt will cost, at a glance.

Role
Full-Stack Developer
Stack
JavaScript, HTML5 / CSS3, Responsive UI
Timeline
2026
Deliverable
Prompt cost calculator
Prompt Aftermath interface render

Overview

Prompt Aftermath turns "how much will this prompt cost?" into an instant answer. Each query generates a shareable image and other tools allow users to optimize their prompts for more efficient and environmentally conscious AI usage.

What I built

  • The calculator runs in the browser, so results update live as you type, with no waiting.
  • A clean, responsive layout that works the same on a phone or a desktop.
  • Custom prompt optimizer with locally hosted LLM integration.
  • Admin dashboard with full CMS capabilities, analytics and advertising management.

How it’s built

A lightweight React build that runs entirely in the browser, with a responsive interface and close attention to the small details that make a tool feel instant. Custom prompt optimizer uses custom API to interact with a local LLM that takes a users input and optimizes it to help them save on token usage.

Screens

Prompt cost calculator interface A custom model LLM powered prompt optimizer Dedicated species information screen

Result

  • Instant cost estimates with no waiting.
  • Works cleanly on phone, tablet and desktop.
  • A simple, shareable tool people come back to.