GPT Image 2 API
Generate and edit images with flexible aspect ratios, resolution, and quality controls.
- Text to image
- Image editing
Starting at
$0.013
per generation
GPT Image 2 playground
Input
User's prompt
Reference image URLs (URLs or base64 data URIs) for image-to-image mode
Runs are charged to your balance.
Output

Output will appear here.
Check the price and run the model. Your result will appear here; browser use does not need an API key.
GPT Image 2 API pricing
| Option | Price per generation |
|---|---|
| 1k | $0.013 |
| 2k | $0.022 |
| 4k | $0.032 |
Quick start
Full API reference →1curl -X POST https://api.api-stock.com/api/v1/generation/create \2 -H "Authorization: Bearer $API_STOCK_KEY" \3 -H "Content-Type: application/json" \4 -d '{5 "model": "gpt-image-2",6 "input": {7 "prompt": "A cinematic shot of a city at dusk",8 "size": "1:1",9 "resolution": "1k"10 }11 }'
Parameters
| Name | Type | Required | Default | Description |
|---|---|---|---|---|
prompt | string | Yes | — | User's prompt |
urls | string[] | No | — | Reference image URLs (URLs or base64 data URIs) for image-to-image mode |
size | string | No | 1:1 | Output image aspect ratio. For GPT Image 2.5 models, 1:3 and 3:1 require 2k or 4k resolution.One of: auto, 1:1, 16:9, 9:16, 4:3, 3:4, 3:2, 2:3, 5:4, 4:5, 2:1, 1:2, 3:1, 1:3, 21:9, 9:21 |
resolution | string | No | 1k | Output image resolutionOne of: 1k, 2k, 4k |
Frequently asked questions
How much does GPT Image 2 cost?
GPT Image 2 starts at $0.013 per generation on API Stock. The final charge depends on the selected settings.
When was GPT Image 2 released?
GPT Image 2 was released on April 21, 2026 and is available through API Stock.
How do I get an API key for GPT Image 2?
Create an account and API key on API Stock, then fund your balance. The same key works with GPT Image 2 and other catalog models.
How do I call the GPT Image 2 API?
POST to https://api.api-stock.com/api/v1/generation/create with your API key and model "gpt-image-2". Use the returned task id for polling or receive a webhook.
What input parameters does GPT Image 2 accept?
GPT Image 2 accepts 4 input parameters, including the required field(s) prompt. See their types, defaults and allowed values above.
What happens if a GPT Image 2 request fails?
API Stock automatically retries the request on a reserve provider. If every provider fails, the charge is refunded to your balance.
Can I use GPT Image 2 with the same API key as other models?
Yes. Use your API Stock API key and balance for GPT Image 2 and other catalog models.
Other Image models
- GPT Image 2.5 FlareOpenAI$0.01/ generation
- GPT Image 2.5 SunburstOpenAI$0.01/ generation
- Z-ImageAlibaba$0.01/ generation
- Nano BananaGoogle$0.012/ generation
- GPT Image 2.6 FlareOpenAI$0.013/ generation
- GPT Image 2.6 SunburstOpenAI$0.013/ generation
- Nano Banana 2.1Google$0.014/ generation
- Nano Banana 2Google$0.018/ generation
- Seedream 5.0 FlashByteDance$0.02/ generation
Guides
- Image generationWhich image model to use for the picture you need, prompts that produce it, batching for variants, and the API run from prompt to file URL.8 min read
- Image editingEditing photos with references instead of prompts — background swaps, product composites, style matching, and the Midjourney action chain from imagine to inpaint.8 min read
- GPT Image 2.5 — Sunburst, Flare, prompts and real examplesChoose a GPT Image model, compare Sunburst and Flare, copy four practical prompts, inspect six real renders, and generate or edit images through API Stock.9 min read
