I made an app on Lovable using 1 command

Summary

This last weekend Lovable hosted an impromptu hackathon called the AI Showdown.

I made an entry for the $25K competition.

Its rules are simple:

• Compare head to head the performance of OpenAI vs Anthropic vs Gemini.

So I decided to create a very simple submission that doubles down as an evaluation for future models and other platforms as well.

Namely, create a 2D Pokémon style game called Kanjemon, where the goal is to capture all 25 Kanji (Japanese scripture characters)

Motivation

I make language learning apps.

I also wanted a very simple comparison.

Results

Honestly, it's possible to 1-shot prompt an amazing MVP on Lovable -- no auth, just pure gameplay.

My personal favorite is Anthropic (better style taste), but OpenAI was incredible too (followed all instructions)

I wrote a lengthier write-up here, where I include the prompts and logic behind the submission.

YouTube demo