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AI-Powered Marketing Campaign Platform

An end-to-end AI-assisted marketing platform built for a startup founder, replacing the need for an external marketing agency.

Role
Full-stack architect & developer (solo)
Stack
Next.js, Cloudflare R2, GPT-4o Mini, Vercel

Problem

A startup founder needed to plan and launch marketing campaigns without the budget or timeline for an external agency.

Decision

Architected an AI-assisted campaign management platform end-to-end on Next.js/Vercel, using GPT-4o Mini for content generation and Cloudflare R2 for cost-efficient asset storage.

Tradeoff

Chose a smaller/cheaper model (GPT-4o Mini) over a larger one to keep generation costs low for a bootstrapped customer, trading some output quality for sustainable unit economics — mitigated with structured prompting.

Outcome

Eliminated the need for external marketing agency support; the platform supported three production marketing campaigns live on the company's launch day.

AI/LLMFull StackNext.js