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GPT Image 1.5 API

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OpenAI's GPT Image 1.5 — multimodal image generation and editing with text rendering capabilities.

OpenAIimage10 credits/call
Provider
OpenAI
Pricing
10–28 credits per image (~$0.02–$0.056)
Speed
3–10 seconds
Output
image

Quick Start

Send a request to the GPT Image 1.5 API:

bash
1curl -X POST https://apiin.one/api/v1/images/generations \
2 -H "Authorization: Bearer YOUR_API_KEY" \
3 -H "Content-Type: application/json" \
4 -d '{
5 "model": "gpt-image-1-5",
6 "prompt": "A modern logo design for a coffee shop called \"Bean & Brew\" with clean typography",
7 "quality": "medium",
8 "aspect_ratio": "1:1"
9}'

API Endpoint

POST/api/v1/images/generations

Send a POST request with your API key to generate content using GPT Image 1.5.

Headers

Body ParametersJSON
Authorization:string

Bearer YOUR_API_KEY

Content-Type:string

application/json

Body Parameters

Body ParametersJSON
model:string

Model identifier: gpt-image-1-5

prompt:string

Text description of the image to generate

aspect_ratio:optional string

Output aspect ratio: 1:1, 2:3, or 3:2 Defaults to 1:1.

quality:optional string

Image quality: medium (10 credits) or high (28 credits) Defaults to medium.

input_urls:optional array

Array of image URLs for editing mode

Example Request

json
1{
2 "model": "gpt-image-1-5",
3 "prompt": "A modern logo design for a coffee shop called \"Bean & Brew\" with clean typography",
4 "quality": "medium",
5 "aspect_ratio": "1:1"
6}

Example Response

Successful task creation response.

1{
2 "code": 200,
3 "message": "success",
4 "data": {
5 "task_id": "n42xxxx_gptimg",
6 "status": "IN_PROGRESS"
7 }
8}

Check Task Status

For asynchronous tasks, poll the status endpoint to check when your task is complete:

GET/api/v1/tasks/{task_id}

Returns the current status of a generation task. Poll until status is 'completed' or 'failed'.

bash
1curl https://apiin.one/api/v1/tasks/task_abc123 \
2 -H "Authorization: Bearer aio_your_key"

Use Cases

  • ✓Generate images with accurate text rendering
  • ✓Edit existing images with text instructions
  • ✓Create marketing assets with embedded typography
  • ✓Build AI-powered design tools

API Tester

Test the GPT Image 1.5 API directly from your browser:

API AlanıPOST

Error Codes

1{
2 "error": {
3 "code": 400,
4 "message": "Invalid parameters",
5 "type": "invalid_request"
6 }
7}

Frequently Asked Questions

How much does GPT Image 1.5 cost?

Medium quality costs 10 credits (~$0.02), high quality costs 28 credits (~$0.056). 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.

Why Use GPT Image 1.5 Through API in One?

1.Superior text rendering in images
2.Image editing capabilities
3.Up to 80% cheaper than OpenAI direct
4.No OpenAI API key or account needed

Ready to use GPT Image 1.5?

Get Your API Key →