SaaS · 2024
HumanizerPro.
Undetectable, in 40+ languages.
presentsAdmit one
Act I
The challenge
I wanted anyone to paste text and see it humanized with zero friction, no signup, no card, while still metering usage and leaving room to charge for more. And I didn’t want to ship one more thin wrapper around gpt-4o, so I trained my own model to make the advanced mode genuinely better than the default.
Act II
What I built
My own humanization SaaS, start to finish. Two routed pipelines call OpenAI directly: "basic" hits gpt-4o, and "advanced" hits a GPT-3.5 I fine-tuned myself. Anonymous users get a 300-word budget with no account; plans scale up to a million words a month.
Intermission, the demo
The product, playing itself
Our innovative solution empowers users to unlock unprecedented productivity gains across diverse verticals.
Routed through a GPT-3.5 fine-tune I trained myself, the “advanced” pass, one of two model pipelines.
the pass sweeps once on scroll-in · the “advanced” route is my own fine-tuned model
The cast
What actually makes it work
Read the card, then flip it to watch the mechanism run.
0x01
Anonymous no-signup metering
A 300-word budget keyed to IP lets people try it with zero friction, and the upsell popup is chosen by which quota ran out.
how it works
Anonymous no-signup metering
0x02
Pricing as Stripe metadata
Per-input and per-month limits live in Stripe product metadata, read at request time via a subscriptions→prices→products join, so pricing changes ship with zero deploys.
how it works
Pricing as Stripe metadata
0x03
The fine-tune + orchestration
I trained the advanced model myself, then wrote mode-specific prompt orchestration that preserves language and word count and degrades gracefully, returning the original text if OpenAI errors.
how it works