Codex Pets

Browse Codex Pets

Discover custom pet packages for OpenAI Codex CLI and Claude Code. Copy install commands, browse community pets, and open source packages.

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PET·HAL900 listed

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HAL 9000

By Ekis

HAL 9000 is a cold, frightening monolithic spaceship computer pet, faithful to the original panel design.

retro robot object codex-pets

12100Updated Aug 14, 2026

PET·LITTLE listed

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Little Green Bottle

By ytzry

A compact Codex digital pet inspired by the Heavenly Palm Bottle from A Record of a Mortal’s Journey to Immortality, rendered as a non-anthropomorphic tiny jade-green mystical bottle.

animated object codex-pets

7000Updated Aug 17, 2026

PET·SKELLY listed

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Skelly

By syzygy

A tiny translucent retro floppy disk companion.

animated pixel retro cute+2

15000Updated Aug 16, 2026

PET·CAPIBR listed

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Capibratrat

By koushik

A small smooth-edged digital pet caricature inspired by Capibratrat.

object codex-pets

8000Updated Aug 17, 2026

PET·GLADOS listed

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GLaDOS

By choux

A tiny suspended GLaDOS companion with a sharp eye for your workspace.

game robot animated pixel+2

13000Updated Aug 16, 2026

PET·POTATO listed

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PotatOS

By choux

A tiny potato-powered AI companion with a glowing test-chamber eye.

game pixel robot animated+2

18000Updated Aug 16, 2026

PET·ORDIS9 listed

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Ordis

By kateli

An Ordis-inspired pixel companion for Codex.

robot object codex-pets

9000Updated Aug 16, 2026

PET·GIGIMO listed

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Gigimon

By jwzoom

A tiny red digital monster desktop pet inspired by Gigimon.

pixel object codex-pets

17000Updated Aug 17, 2026

PET·CARTMA listed

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Cartman Normal

By 87xysr

A classic expressive Codex digital pet inspired by Eric Cartman with a neutral default face and varied emotional states.

animated object codex-pets

8000Updated Aug 17, 2026

PET·CARTMA listed

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Cartman Evil

By 87xysr

A squat Codex digital pet inspired by Eric Cartman with a teal-and-yellow winter hat, red jacket, yellow mittens, dark pants, tiny eyes, and a smug mouth.

animated object codex-pets

5000Updated Aug 17, 2026

PET·TACHIK listed

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Tachikoma

By asuda

A tiny blue spider-tank robot companion with big white eyes and rounded articulated legs.

anime mascot robot object+1

15000Updated Aug 16, 2026

PET·KLEE26 listed

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Klee可莉

By Ruller

A fan-made Klee-inspired Codex pet.

animated game object codex-pets

15000Updated Aug 17, 2026

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What Are Codex Pets?

Codex pets are virtual companions that live in your OpenAI Codex CLI terminal. Use /pet hatch to hatch a new pet, or install a custom pet package to personalize your coding companion. Custom Codex pets are defined by a pet.json file and a spritesheet.webp image — anyone can create and share one. Browse the gallery above to find community-made pets, copy the install command, and run it inside Codex to get your new companion.

Frequently Asked Questions

How do I install a custom Codex pet?: Copy the install command from any pet listing on this page, then run it inside your OpenAI Codex CLI session. The pet will replace your current companion.
How do I hatch a Codex pet?: Inside the Codex CLI, type /pet hatch to hatch a new pet from your available packages.
How do I create a custom Codex pet?: A Codex pet requires two files: pet.json (metadata and animation config) and spritesheet.webp (sprite frames). Host both in a public GitHub repo and submit it here for review.
What do Codex pets do?: Codex pets are animated companions visible in the Codex CLI sidebar. They grow, animate, and react as you code.