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What you can do with GPT Image Skill

GPT Image Skill is an installable skill that lets Codex, Claude Code, or Google Antigravity generate and edit GPT images through a ChatGPT subscription instead of the Images API.

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GENEXIS-AI/gpt-image-skill on GitHub

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What do you want to do?

5 use cases

  • Generate images from a text prompt in Codex

    Install the skill once, then create a finished GPT image from one natural-language request.

    View prompt
    Install GPT Image Skill from https://github.com/GENEXIS-AI/gpt-image-skill using the AGENT_INSTALL.md contract, then generate one image of <subject> at <aspect ratio> with high quality. Expect a PNG under /generated-images and a PATH=... line in the output. Verify the file exists and that the output did not use OPENAI_API_KEY or the Images API.

  • Revise an existing image without losing prior edits

    Edit a picture you already have, or refine the last result, while keeping references attached.

    View prompt
    Using the GPT Image Skill in <repo path>, edit <existing image path> with the change <requested change> and keep the rest of the layout. Expect a new PNG in /generated-images and a PATH=... line. Verify that the previous output was the edit target for any follow-up request.

  • Batch-create several distinct poster concepts at once

    Delegate five different poster designs and generate them in one bounded parallel run.

    View prompt
    Using GPT Image Skill in <repo path>, create <number> distinct poster concepts for <campaign brief> at <aspect ratio>. Expect one PNG per concept in /generated-images, each with its own filename. Verify that the prompts differ in composition and not only in wording.

  • Make transparent-background icons for app projects

    Generate an icon with a transparent background and check that the PNG really has alpha.

    View prompt
    Using GPT Image Skill in <repo path>, generate a flat icon of <icon subject> at 1:1 with a transparent background. Expect a transparent PNG under /generated-images with a PATH=... line. Verify the file has an alpha channel before it is used in <project path>.

  • Keep one character consistent across new scenes

    Reuse a character reference file to place the same person or mascot into several new scenes.

    View prompt
    Using GPT Image Skill in <repo path>, generate <number> scenes using <character reference path> as the reference in each job, with the scene descriptions <scene list>. Expect one PNG per scene under /generated-images. Verify the reference file is attached in every job, not replaced by a text description.

How to use GPT Image Skill

  1. Check you have what it needs: A ChatGPT or Codex plan that permits image generation (the README says Codex image generation is not available on the Free plan); Node.js 22 or newer; Git, for installing from GitHub.
  2. Open GENEXIS-AI/gpt-image-skill on GitHub and read the README and license.
  3. Paste the install prompt from the README into Codex, Claude Code, or Google Antigravity, and follow the Sign in with ChatGPT device authorization when asked.
  4. Wait for the setup to report readiness. The README states that no image is generated during setup.
  5. In Codex, type $gpt-image Create a cozy reading room at sunset, 16:9, high quality. In Claude Code, use /gpt-image with the same request.
  6. Open the returned PATH in /generated-images and check the image against your request.

These steps come from our top use case, Generate images from a text prompt in Codex, which also has a copy-paste agent prompt.

GPT Image Skill alternatives · Best AI repos for Content

About this repo

Requirements

  • A ChatGPT or Codex plan that permits image generation (the README says Codex image generation is not available on the Free plan)
  • Node.js 22 or newer
  • Git, for installing from GitHub
  • Codex CLI signed in with ChatGPT, or a host that provides subscription-native image_gen
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Questions about GPT Image Skill

What is GPT Image Skill?

GPT Image Skill is an installable skill that lets Codex, Claude Code, or Google Antigravity generate and edit GPT images through a ChatGPT subscription instead of the Images API. It is an open-source project on GitHub: https://github.com/GENEXIS-AI/gpt-image-skill.

Who is GPT Image Skill for?

Designers, marketers, and developers who already pay for ChatGPT and want image generation inside their coding agent without setting up API keys.

What can I do with GPT Image Skill?

5 use cases so far, for example: Generate images from a text prompt in Codex; Revise an existing image without losing prior edits; Batch-create several distinct poster concepts at once. Each has steps and a copy-paste agent prompt.

What do I need to run GPT Image Skill?

A ChatGPT or Codex plan that permits image generation (the README says Codex image generation is not available on the Free plan); Node.js 22 or newer; Git, for installing from GitHub; Codex CLI signed in with ChatGPT, or a host that provides subscription-native image_gen.

What are alternatives to GPT Image Skill?

Other hot AI repos in Content: Voice Studio, Anatomy, Comfy UI, Hyperframes, Earshot.

Is GPT Image Skill safe to run?

Deduped does not own, audit or vouch for it. Read the README and license, run it on your own systems first and review every command before you run it.