Comparison11 Nov 2026

NIGHTSHIFT, built twice

I gave Gemini 4 Carbon and Claude Fable 5.2 one prompt for a browser driving game, its player car included. Here’s what each one made, how long it took and what it cost.

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Claude Fable 5.2: the player car from the front three-quarter view, on the wet highway

Gemini 4 Carbon: the player car from the front three-quarter view, on the wet highway

What it took

	Gemini 4 Carbon	Claude Fable 5.2
Working time	~2 h 8 min	~16 h 36 min
API cost (estimate)	~$10	~$300+
Lines of code	7,705	35,831
Player car, triangles	89,900	129,824

Read the write-up

I’m Ediz. Every now and then I give two AI models the same job and see what they come back with. This is where I write it up.

This is the first one. If you want to know when the next goes up, there’s an RSS feed.

I don’t touch the code the models write. If I restart a run or step in, the write-up says so. The about page has the rest.