Use this in the request body model field.
gpt-image-1.5-official API
Generate and edit images with OpenAI's GPT Image 1.5 API via API in One. Text rendering, image editing, multimodal input. 10–28 credits per image depending on quality.
The currently implemented BFF route.
Input types: text, image
Keys are managed by the shared dashboard.
Use callback_url on supported async tasks.
Live capabilities
These capabilities come from the current model config and backend route. Unreleased APIs are not listed.
Superior text rendering in images
Superior text rendering in images
Image editing capabilities
Image editing capabilities
Transparent credit cost per quality tier
Transparent credit cost per quality tier
No OpenAI API key or account needed
No OpenAI API key or account needed
Request format
Clients call same-origin API routes; the server BFF forwards to the matching Worker.
POST/api/v1/images/generations10 creditsOpenAI's GPT Image 1.5 — multimodal image generation and editing with text rendering capabilities.
Parameters
promptstringText description of the image to generate
Requiredaspect_ratiostringOutput aspect ratio: "1:1", "2:3", or "3:2"
Optional · Default 1:1qualitystringImage quality: "medium" (10 credits) or "high" (28 credits)
Optional · Default mediuminput_urlsarrayArray of image URLs for editing mode
OptionalExample request
curl -X POST https://apiin.one/api/v1/images/generations \
-H "Authorization: Bearer aio_your_api_key" \
-H "Content-Type: application/json" \
--data-raw '{
"model": "gpt-image-1-5",
"prompt": "A modern logo design for a coffee shop called \"Bean & Brew\" with clean typography",
"quality": "medium",
"aspect_ratio": "1:1"
}'Models on the same endpoint
These live models use the same implemented BFF endpoint and can be switched by changing the model field.
/api/v1/images/generations/api/v1/images/generations
grok-imagineimage · 5 credits/api/v1/images/generations
kling-image-o1image · 6 credits/api/v1/images/generations✦ideogram-v3image · 8 credits/api/v1/images/generations🌐imagen-4image · 8 credits/api/v1/images/generationsIntegration flow
These steps use the current live route and shared account system; login, payment, orders, credits, and profile remain shared.
Create a shared API key
Create a key in the existing dashboard. Top-up, orders, credit balance, and profile stay in the shared console.
Call the real endpoint
Send a request with the endpoint, model id, and parameters shown on this page. /api/v1/images/generations
Poll task status
Async media and tool jobs use /api/v1/tasks/{task_id}; chat models return a direct response.
Task status route
After creating image, video, audio, or tool tasks, poll the real task endpoint for results.
GET/api/v1/tasks/{task_id}Check generation task status and result.Pricing
10–28 credits per image (~$0.10–$0.28)
Use cases
These workflows are supported by the current model and backend node.
Generate images with accurate text rendering
Edit existing images with text instructions
Create marketing assets with embedded typography
Build AI-powered design tools
FAQ
How much does GPT Image 1.5 cost?
Medium quality costs 10 credits (~$0.10), high quality costs 28 credits (~$0.28). Set via the "quality" parameter.
Can GPT Image 1.5 render text in images?
Yes. GPT Image 1.5 excels at rendering readable text within generated images, unlike most other image models.
Does it support image editing?
Yes. Provide input images via the "input_urls" parameter and text instructions to modify them.
What aspect ratios are supported?
Supported aspect ratios: 1:1, 2:3, and 3:2.