Codex-R32

A custom AI-designed CPU architecture capable of running DOOM

Description

A functional CPU architecture designed by GPT-5.6 Sol to run the original DOOM within a simulated environment. The system, dubbed Codex-R32, features a 32-bit architecture demonstrated running at an 11MHz simulation speed with nearly a billion gates, proving the model's capacity for complex systems engineering.

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Details

Why this is interesting: It demonstrates a remarkable engineering capability where an AI architects a Turing-complete CPU from scratch to run…
Attributed to: Angel 🌼@Angaisb_
Built with: GPT-5.6 Sol GPT Image 2 GPT-5 Codex GPT-5
Tags: #cpu-architecture #doom #emulation #sandbox

Discovered: X
First posted: X · Aug 23, 2026
Listed: Added 29d ago
Build: Moderate
Models: Strong

Codex-R32

Description

How it grew

Codex-R32

Description

How it grew