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



By side_inventory
A compact Demon Slayer inspired Tengen-style swordsman pet with jeweled headband, white hair, two chain-connected knives, and flashy sound-breathing effects while Codex is running.

By bra611374
Chibi dark-fantasy black swordsman in berserker armor with a massive sword.

By side_inventory
A confident flame-haired swordsman Codex pet with large attached flame-form sword effects while Codex is running.

By QuinnHaaa
A quiet Yuan Ying wanderer with ink robes, jade aura, and a tiny spirit sword.


By weaxs
A non-pixel anime-style tiny witch pet inspired by the provided Shizuka reference.


By bra611374
Crimson Behelit egg relic with unsettling face shifts and occult aura.

By bra611374
Crimson Behelit egg relic with canonical misplaced facial features and unsettling face-emergence animation.



By akshat_creates
A tiny pixel-art George Russell-inspired racing driver pet in a dark teal-accented racing suit with a small Mercedes-style star badge.




By Toby233
A careful pink fox helper for local OCR, packaging, browser export, and spreadsheet work.

By lanten
A ground-fixed 3D mechanical supercomputer building inspired by 《Metal Max》(メタルマックス) Noah, with a central eye, armored support structure, circuit textures, integrated lights, electrical effects, and transparent-background sprite animations.

By Toby233
BEIBEI is a lively, cute pink fox pet who explores tasks with a magnifying glass, reads while idle, and occasionally scratches her head.


By KevinHuge
A tiny chibi mech pet inspired by a black-and-blue cybernetic armored giant.

By may
A calm and powerful chibi dragon king with white scales, flowing silver hair, and an icy blade.
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.

