A tiny blonde chibi companion with a white wide hat, purple eyes, blue hair clip, blue neck ribbon, and a slightly smug sticker-expression personality.

ai chatgpt codex codex-pet+2

000425Updated Jul 26, 2026

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PET·ERENB8 listed

github

Eren

By legeling

A stern anime-scout-inspired Codex pet with a green cloak and determined expression.

ai chatgpt codex codex-pet+2

000425Updated Jul 26, 2026

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PET·ELLAWA listed

github

Ella Wave

By legeling

A tiny Codex digital pet inspired by Ella, a curious black-and-white cat with chartreuse eyes, a pink nose, mask-like face patches, white chest, and a warm orange flank patch. Hover variant: uses the waving animation when Codex triggers hover jump.

ai chatgpt codex codex-pet+2

000425Updated Jul 26, 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.