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Generated images are saved only in the current browser. They are not stored on AIOHub servers. Clearing browser data removes image history, so download any results you want to keep.
GPT Image Playground (GIP) is AIOHub’s embedded browser client for testing GPT image generation and image editing with your own AIOHub API key. Use it when you want to try prompts, compare image models, or edit reference images without writing SDK code. You can also open it from Token management. Use the Imagine-GPT action on an image-enabled API key; AIOHub opens the playground with that key prefilled, so you do not need to paste the API key again.
AIOHub Token management showing the Imagine-GPT action on a single images API key row

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Prerequisites

  • An AIOHub API key
  • A positive account balance
  • An API key with at least one openai or codex* group, such as codex or codex-passthrough, for gpt-image-2
SettingValueNotes
App URLhttps://imagine.aiohub.org/Open the playground in your browser
API URLhttps://api.aiohub.orgUse the gateway root in this client
API Keysk-your-api-keyUse a dedicated API key for this browser client
API interfaceImages API (/v1/images)Uses OpenAI Images generation and editing routes
Codex CLIEnable for codex* groups; disable for the openai groupMatch the switch to the API key group
Model IDgpt-image-2The API key must include at least one openai or codex* group
Timeout360-600 seconds for large or high-quality jobsImage generation can take longer than chat responses
The Codex CLI switch depends on the API key group:
  • API key in a codex or codex-passthrough group -> enable it
  • API key in the openai group -> disable it
Unsure which group the key uses? Check the key details on the console Token page.
GPT Image Playground settings with API URL https://api.aiohub.org, Codex CLI enabled, Images API selected, and gpt-image-2 model ID

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Setup

1

Open the playground

Visit https://imagine.aiohub.org/.
2

Or open from Token management

In the console token list, choose Imagine-GPT on the API key you want to use. This route opens the playground with the selected key already filled.
3

Open settings

In the top-right settings panel, configure the API URL, API key, API interface, Codex CLI switch, model ID, and timeout.
4

Use the AIOHub API URL

Set the API URL to https://api.aiohub.org. Do not enter https://api.aiohub.org/v1/images/generations or https://api.aiohub.org/v1/images/edits; the playground appends the route itself when Images API is selected.
5

Set the Codex CLI switch

Enable Codex CLI. codex* groups route requests through Codex channels and need this switch enabled.
6

Choose a model

Set Model ID to gpt-image-2. If the model is not visible, add an openai or codex* group to the API key in the console, then retry.
7

Generate or edit images

For text-to-image, enter a prompt and choose size, quality, and output format. For image editing, upload one or more reference images, then describe the edit you want.

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Operational notes

  • Browser settings and history are local to the browser. Use a dedicated API key, especially on shared devices.
  • Usage, cost, and errors are recorded in the AIOHub console logs just like SDK requests.
  • Model availability depends on the groups assigned to the API key. For gpt-image-2, include at least one openai or codex* group.
  • Large image jobs can take several minutes. Increase the timeout before testing high-quality or high-resolution generations.
  • If the browser cannot render a large response, check the console logs before retrying; the API request may already have completed.

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Troubleshooting

Confirm the API key is valid, enabled, and sent as the full sk- value. For 403 with gpt-image-2, check that the key includes an openai or codex* group, and confirm the Codex CLI switch matches the key group (codex* enabled, openai disabled).
Request /v1/models with the same API key or check the console model list. Select a model that is visible to that key.
The API URL should be https://api.aiohub.org in GPT Image Playground. Remove any full endpoint path from the API URL field.
Increase the timeout to 360-600 seconds, reduce image size or quality, or try a different visible image model.
Check the group field in the token details page. If it includes codex or codex-passthrough, enable the switch. If it includes openai, disable the switch. If the key includes both group types, either configuration can work.