GPT Image 2 Edit

GPT Image 2.0, OpenAI’s latest image model, is capable of making fine-grained, detailed edits to images.

Pricing: $0.133/image. Endpoint: POST /v1/models/openai/gpt-image-2/edit/runs.

GPT Image 2.0, OpenAI’s latest image model, is capable of making fine-grained, detailed edits to images.

Overview

• Endpoint: https://api.runflow.io/v1/models/openai/gpt-image-2/edit/runs
• Model ID: openai/gpt-image-2/edit
• Provider: OpenAI
• License: commercial
• Last Updated: 2026-04-21

Pricing

• Base price: $0.133/image
• Note: High quality (default)

GPT Image 2 Edit API

Endpoint: POST /v1/models/openai/gpt-image-2/edit/runs

Run the model

Python

import requests

response = requests.post(
    "https://api.runflow.io/v1/models/openai/gpt-image-2/edit/runs",
    headers={"Authorization": "Bearer RUNFLOW_API_KEY"},
    json={
        "input": {
            "prompt": "Replace the background with a sunlit seaside cafe at golden hour, keep the subject's pose, outfit, and lighting on the face intact",
            "image_urls": [
                "https://public.runflow.io/images/models/_base/portrait-woman-studio.png"
            ]
        },
        "callback_url": "https://your-server.com/webhook"
    },
)

data = response.json()
print(data)

Node.js

const response = await fetch(
  "https://api.runflow.io/v1/models/openai/gpt-image-2/edit/runs",
  {
    method: "POST",
    headers: {
      "Authorization": "Bearer RUNFLOW_API_KEY",
      "Content-Type": "application/json",
    },
    body: JSON.stringify({
        "input": {
            "prompt": "Replace the background with a sunlit seaside cafe at golden hour, keep the subject's pose, outfit, and lighting on the face intact",
            "image_urls": [
                "https://public.runflow.io/images/models/_base/portrait-woman-studio.png"
            ]
        },
        "callback_url": "https://your-server.com/webhook"
    }),
  }
);

const data = await response.json();
console.log(data);

cURL

curl -X POST https://api.runflow.io/v1/models/openai/gpt-image-2/edit/runs \
  -H "Authorization: Bearer $RUNFLOW_API_KEY" \
  -H "Content-Type: application/json" \
  --data-binary @- <<'JSON'
{
    "input": {
        "prompt": "Replace the background with a sunlit seaside cafe at golden hour, keep the subject's pose, outfit, and lighting on the face intact",
        "image_urls": [
            "https://public.runflow.io/images/models/_base/portrait-woman-studio.png"
        ]
    },
    "callback_url": "https://your-server.com/webhook"
}
JSON

Request parameters

Parameter	Type	Required	Description
input	object	required	Model input parameters. See “Input schema” below.
callback_url	string | null	optional	Webhook URL - POSTed when the run reaches a terminal state.
metadata	object | null	optional	Arbitrary key-value pairs attached to the run.

Input schema

Field	Type	Required	Allowed values	Description
prompt	string	required	Any	The prompt for image generation
image_urls	image_list	required	Any	The URLs of the images to use as a reference for the generation.
num_images	integer	optional	Any	Number of images to generate
output_format	string	optional	jpeg, png, webp	Output format for the images
image_size	string	optional	square_hd, square, portrait_4_3, portrait_16_9, landscape_4_3, landscape_16_9, auto	The size of the generated image. Use ‘auto’ to infer from input images.
mask_url	image	optional	Any	The URL of the mask image to use for the generation. This indicates what part of the image to edit.
quality	string	optional	low, medium, high	Quality for the generated image
sync_mode	boolean	optional	Any	If True, the media will be returned as a data URI and the output data won’t be available in the request history.

Output schema

Field	Type	Description
outputs	json	Unified output array.
seed	json	Seed used for generation, or null.
timing	json	Provider timing info, or null.
nsfw_detected	json	NSFW flag, or null.

Callback payload

When you provide a callback_url, Runflow POSTs to it once the run reaches a terminal state.

Field	Type	Description
event	string	Event type: “run.completed”, “run.failed”, or “run.cancelled”.
run_id	string	The unique identifier of the run.
status	string	Terminal status: “succeeded”, “failed”, or “cancelled”.
output	object | null	The run output. Null if the run failed or was cancelled.
duration_ms	number | null	Total run duration in milliseconds.
created_at	string | null	ISO 8601 timestamp when the run was created.
completed_at	string | null	ISO 8601 timestamp when the run reached terminal state.
metadata	object | null	The metadata object passed at run creation, if any.

• Retries: 3 attempts with exponential backoff (1s, 2s). Retries on 5xx / network errors only.
• Headers: Runflow-Request-Id is always sent. Runflow-Signature is sent if a signing secret is configured.

Additional Resources

• Playground
• API Reference
• Documentation
• OpenAPI

Related

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