Case Study

SwiftSnapAI

Chrome extension for AI-powered text and image analysis, built when multimodal was brand new.

Overview

A Chrome extension that lets you highlight text or capture images on any webpage and run AI actions on it without leaving the page. Explain, summarize, fact-check, translate, or generate study guides inline. Built when multimodal AI was just becoming available, this was one of the first extensions to combine GPT-3.5 for text and GPT-4o Vision for image analysis in a single tool. Smart token allocation calculates optimal costs per request based on action type, content length, and user tier. Full Stripe monetization with three pricing tiers, rate limiting at two layers, and an anonymous-to-authenticated upgrade path with zero friction.

Key Features

• 01Inline capture modal with 8 AI actions, conversation threading, and tone selection
• 02GPT-4o Vision image analysis with smart resolution selection based on image complexity
• 03Smart token allocation that scales cost per request by action type, content length, and tier
• 043-tier Stripe monetization with webhook-driven upgrades and self-service billing portal

Built With