AI Generation

OpenAI GPT Image 1.5API

advanced, production-ready image generation model (released Dec 2025) designed for high-fidelity photorealism, faster performance (up to 4x faster), and enhanced editing. It features superior prompt adherence, better text rendering, and consistent character/object preservation, making it ideal for marketing, design, and 3D rendering

Test in Dashboard View Docs ← All Tools

Three ways to use this tool

REST API

One POST request. Get the result back directly — as an image, video, or JSON depending on the tool.

terminal 
curl -X POST https://apiai.me/api/workflow/openai-gpt-image-1-5 \
     -H "X-API-Key: YOUR_API_KEY" \
     -F "image=@input.jpg" \
     -F "background=auto" \
     -F "input_fidelity=high" \
     -F "output_format=webp" \
     -F "PROMPT=VALUE" \
     -F "quality=auto" \
     -F "size=auto" \
     -F "style=natural"
     --output result.png

Dashboard Playground

Test this tool visually before writing any code. Upload an image, set parameters, and see the result live. When it looks right, copy the auto-generated curl command and paste it into your app.

  1. Open the dashboard → API Toolbox
  2. Find OpenAI GPT Image 1.5 and click it
  3. Upload your input and adjust parameters
  4. Copy the curl command and ship
Open Dashboard →

Batch Processing

Process hundreds of images at once without writing a loop. Upload a CSV with one row per item, set your parameters, and download the results as a ZIP when they're done.

  1. Open the dashboard → Batches
  2. Select OpenAI GPT Image 1.5
  3. Add your content and start the batch
  4. Download results ZIP when complete
Go to Batches →

Parameters

Name Required Description Default / Options
background optional Background transparency (gpt-image-1/1.5 only): transparent, opaque, auto transparentopaqueauto
input_fidelity optional Input image fidelity for /images/edits (gpt-image models only): high preserves original closely, low gives more creative freedom highlow
output_format optional Output format (gpt-image-1/1.5/mini only): png, webp, or jpeg pngwebpjpeg
PROMPT required Text prompt for the OpenAI model —
quality optional Image quality. dall-e-3: standard, hd. gpt-image-1/1.5: low, medium, high, auto hdlowmediumhighauto
size optional Output image size. gpt-image-1/1.5: 1024x1024, 1536x1024, 1024x1536, auto. dall-e-3: 1024x1024, 1792x1024, 1024x1792 1024x10241536x10241024x15361792x10241024x1792auto
style optional Image style (dall-e-3 only): vivid (hyper-real) or natural (less hyper-real) vividnatural

Ready to integrate?

Get an API key, test OpenAI GPT Image 1.5 in the dashboard, and copy the curl command.

Get API Key Full API Reference