GPT Image 2 API, GPT Image 1.5 API - AI Image Generation APIs

GPT Image 2 API, developers can create images that accurately reflect complex prompts, edit existing images with natural language instructions, and generate variations. The API combines GPT's language understanding with powerful image generation for intuitive creative workflows.

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GPT Image 2 Text to Image API Documentation

https://gateway.pixazo.ai/gpt-image-2/v1/text-to-image

Authentication

All requests require an API key passed via header.

Header	Type	Required	Description
Ocp-Apim-Subscription-Key	string	Yes	Your API subscription key

Text to Image - GPT Image 2

Request Code

POST https://gateway.pixazo.ai/gpt-image-2/v1/text-to-image
Content-Type: application/json
Cache-Control: no-cache
Ocp-Apim-Subscription-Key: YOUR_API_KEY

{
  "prompt": "A serene sunset over mountains"
}

import requests

url = "https://gateway.pixazo.ai/gpt-image-2/v1/text-to-image"
headers = {
    "Content-Type": "application/json",
    "Cache-Control": "no-cache",
    "Ocp-Apim-Subscription-Key": "YOUR_API_KEY"
}
data = {
  "prompt": "A serene sunset over mountains"
}

response = requests.post(url, json=data, headers=headers)
print(response.json())

const url = 'https://gateway.pixazo.ai/gpt-image-2/v1/text-to-image';
const headers = {
  'Content-Type': 'application/json',
  'Cache-Control': 'no-cache',
  'Ocp-Apim-Subscription-Key': 'YOUR_API_KEY'
};
const data = {
  prompt: 'A serene sunset over mountains'
};

fetch(url, {
  method: 'POST',
  headers: headers,
  body: JSON.stringify(data)
})
.then(response => response.json())
.then(data => console.log(data))
.catch(error => console.error('Error:', error));

curl -X POST "https://gateway.pixazo.ai/gpt-image-2/v1/text-to-image" \
  -H "Content-Type: application/json" \
  -H "Cache-Control: no-cache" \
  -H "Ocp-Apim-Subscription-Key: YOUR_API_KEY" \
  --data-raw '{
  "prompt": "A serene sunset over mountains"
}'

Output

{
  "request_id": "gpt-image-2_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "status": "QUEUED",
  "polling_url": "https://gateway.pixazo.ai/v2/requests/status/gpt-image-2_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
}

Try Now

Webhook (Optional)

Add the X-Webhook-URL header to your submit request to receive a POST callback when the job completes — no polling required.

Webhook Headers

Header	Required	Default	Description
`X-Webhook-URL`	Yes (to enable)	—	HTTPS endpoint on your server that will receive the `POST` callback. Must respond `2xx` within a few seconds (process async if needed).
`X-Webhook-Mode`	No	`terminal`	`terminal` — fires once at the final status (`COMPLETED`/`FAILED`/`ERROR`). `sync` — fires on every poll cycle plus the terminal event, and caps the queue’s polling delay at 15s for tighter progress updates.

Example: enable webhook

X-Webhook-URL: https://your-server.com/webhook/callback
X-Webhook-Mode: terminal

Callback Payload

Your endpoint receives a POST application/json with the same shape as the GET /v2/requests/status/{request_id} response. Example terminal callback (mode terminal):

{
  "request_id": "gpt-image-2_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "status": "COMPLETED",
  "model_id": "gpt-image-2",
  "error": null,
  "output": {
    "media_url": [
      "https://pub-582b7213209642b9b995c96c95a30381.r2.dev/v1/gpt-image-2_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx/output.png"
    ],
    "media_type": "image/png"
  },
  "created_at": "2026-05-22T13:17:32.110Z",
  "updated_at": "2026-05-22 13:19:23",
  "completed_at": "2026-05-22 13:19:23"
}

Failure callback shape

{
  "request_id": "gpt-image-2_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "status": "ERROR",
  "model_id": "gpt-image-2",
  "error": "Description of the error",
  "output": null,
  "created_at": "...",
  "updated_at": "...",
  "completed_at": "..."
}

Delivery semantics

terminal mode (default) — exactly one POST when the request reaches a terminal status. No callback during PROCESSING.
sync mode — POST on every status poll (with delay capped at ~15s) plus a final POST at terminal status. Use when you want progress updates.
Idempotency — use request_id as your idempotency key. Network retries can deliver the same callback more than once; your handler must tolerate duplicates.
Response — respond 200 OK within a few seconds. The queue does not block on slow handlers, but persistent failures may stop further deliveries.
HTTPS required — plain http:// URLs are rejected.

Request Parameters - Text to Image

Parameter	Required	Type	Default	Allowed values / range	Description
`prompt`	Yes	string	—	—	Text description of the desired image. Must be non-empty.
`n`	No	integer	1	1–10	Number of images to generate in one request.
`size`	No	string	`"auto"`	`1024x1024`, `1024x1536`, `1536x1024`, `2048x2048`, `2048x1152`, `2160x3840`, `3840x2160`, `auto`, or custom W×H	Output dimensions.
`quality`	No	string	`"auto"`	`low`, `medium`, `high`, `auto`	Rendering quality. Higher = more detail, longer latency, higher cost.
`format`	No	string	`"png"`	`png`, `jpeg`, `webp`	Output file format. `jpeg` is fastest.
`output_compression`	No	integer	—	0–100	Compression level for jpeg / webp (no effect on png). Omit to use the OpenAI default.
`background`	No	string	`"auto"`	`opaque`, `auto`	Background handling. `transparent` is NOT supported for gpt-image-2.
`moderation`	No	string	`"auto"`	`auto`, `low`	Content moderation strictness. `low` is less restrictive.

Example Request

{
  "prompt": "Photorealistic 2K landscape of a fjord at golden hour, dramatic clouds, ultra-detailed",
  "n": 4,
  "size": "2048x1152",
  "quality": "high",
  "format": "webp",
  "output_compression": 80,
  "background": "opaque",
  "moderation": "low"
}

Response

{
  "request_id": "gpt-image-2_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "status": "QUEUED",
  "polling_url": "https://gateway.pixazo.ai/v2/requests/status/gpt-image-2_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
}

Request Headers

Header	Value
Content-Type	application/json
Cache-Control	no-cache
Ocp-Apim-Subscription-Key	YOUR_API_KEY

Response Handling

Common status codes.

Code	Meaning
202	Accepted — Request queued
400	Bad Request
401	Unauthorized
402	Insufficient Balance
403	Forbidden
429	Too Many Requests
500	Internal Server Error

Error Responses

Queue system errors and model validation errors.

Queue System Errors

// 402 — Insufficient balance
{
  "error": "Insufficient Balance",
  "message": "Your wallet does not have enough balance."
}

// 400 — Model not found
{
  "error": "Model not found",
  "message": "Model 'gpt-image-2' not found or is disabled"
}

Error via Status/Webhook

{
  "request_id": "gpt-image-2_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "status": "ERROR",
  "model_id": "gpt-image-2",
  "error": "Description of the error",
  "output": null
}

Retrieving Results

Poll the universal status endpoint to check progress and retrieve results.

Endpoint

GET https://gateway.pixazo.ai/v2/requests/status/{request_id}
Ocp-Apim-Subscription-Key: YOUR_API_KEY

cURL Example

curl -H "Ocp-Apim-Subscription-Key: YOUR_API_KEY" \
  "https://gateway.pixazo.ai/v2/requests/status/gpt-image-2_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"

Response (Completed)

{
  "request_id": "gpt-image-2_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "status": "COMPLETED",
  "model_id": "gpt-image-2",
  "error": null,
  "output": {
    "media_url": [
      "https://pub-582b7213209642b9b995c96c95a30381.r2.dev/v1/gpt-image-2_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx/output.png"
    ],
    "media_type": "image/png"
  },
  "created_at": "2026-03-31T10:00:00.000Z",
  "updated_at": "2026-03-31T10:00:15.000Z",
  "completed_at": "2026-03-31T10:00:15.000Z"
}

Response Fields

Field	Type	Description
request_id	string	Unique request identifier
status	string	QUEUED, PROCESSING, COMPLETED, FAILED, or ERROR
model_id	string	Model that processed the request
error	string\|null	Error message if failed
output.media_url	array	URLs to generated media (R2 CDN)
output.media_type	string	MIME type of the output
created_at	string	When request was created
completed_at	string\|null	When request completed
polling_url	string	Status URL (initial response only)

Status Values

Status	Description
QUEUED	Request accepted, waiting to be processed
PROCESSING	Being processed by the model
COMPLETED	Done — output contains the result
FAILED	Failed — check error field
ERROR	System error — not charged

Status Flow

QUEUED → PROCESSING → COMPLETED
                    → FAILED
                    → ERROR

Typical Workflow

Send a generate request to the API endpoint
Save the request_id from the response
Poll every 5-10 seconds: GET /v2/requests/status/{request_id}
When status is "COMPLETED", download from output.media_url

Tip: Use X-Webhook-URL header to get a callback instead of polling.

GPT Image 2 Text to Image API Pricing

Resolution	Price (USD)
1024x1024	$0.006
1024x1536	$0.005
1536x1024	$0.005
1024x1024	$0.053
1024x1536	$0.041
1536x1024	$0.041
1024x1024	$0.211
1024x1536	$0.165
1536x1024	$0.165

GPT Image 2 Image to Image (Image Editing) API Documentation

https://gateway.pixazo.ai/gpt-image-2/v1/image-to-image-edit

Authentication

All requests require an API key passed via header.

Header	Type	Required	Description
Ocp-Apim-Subscription-Key	string	Yes	Your API subscription key

Image to Image (Edit Image) - GPT Image 2

Request Code

POST https://gateway.pixazo.ai/gpt-image-2/v1/image-to-image-edit
Content-Type: application/json
Cache-Control: no-cache
Ocp-Apim-Subscription-Key: YOUR_API_KEY

{
  "prompt": "Add a flamingo to the pool",
  "image": "https://pub-582b7213209642b9b995c96c95a30381.r2.dev/gpt-images-2/img_c86ec1806237_0.png"
}

import requests

url = "https://gateway.pixazo.ai/gpt-image-2/v1/image-to-image-edit"
headers = {
    "Content-Type": "application/json",
    "Cache-Control": "no-cache",
    "Ocp-Apim-Subscription-Key": "YOUR_API_KEY"
}
data = {
  "prompt": "Add a flamingo to the pool",
  "image": "https://pub-582b7213209642b9b995c96c95a30381.r2.dev/gpt-images-2/img_c86ec1806237_0.png"
}

response = requests.post(url, json=data, headers=headers)
print(response.json())

const url = 'https://gateway.pixazo.ai/gpt-image-2/v1/image-to-image-edit';
const headers = {
  'Content-Type': 'application/json',
  'Cache-Control': 'no-cache',
  'Ocp-Apim-Subscription-Key': 'YOUR_API_KEY'
};
const data = {
  prompt: 'Add a flamingo to the pool',
  image: 'https://pub-582b7213209642b9b995c96c95a30381.r2.dev/gpt-images-2/img_c86ec1806237_0.png'
};

fetch(url, {
  method: 'POST',
  headers: headers,
  body: JSON.stringify(data)
})
.then(response => response.json())
.then(data => console.log(data))
.catch(error => console.error('Error:', error));

curl -X POST "https://gateway.pixazo.ai/gpt-image-2/v1/image-to-image-edit" \
  -H "Content-Type: application/json" \
  -H "Cache-Control: no-cache" \
  -H "Ocp-Apim-Subscription-Key: YOUR_API_KEY" \
  --data-raw '{
  "prompt": "Add a flamingo to the pool",
  "image": "https://pub-582b7213209642b9b995c96c95a30381.r2.dev/gpt-images-2/img_c86ec1806237_0.png"
}'

Output

{
  "request_id": "gpt-image-2_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "status": "QUEUED",
  "polling_url": "https://gateway.pixazo.ai/v2/requests/status/gpt-image-2_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
}

Try Now

Webhook (Optional)

Add the X-Webhook-URL header to your submit request to receive a POST callback when the job completes — no polling required.

Webhook Headers

Header	Required	Default	Description
`X-Webhook-URL`	Yes (to enable)	—	HTTPS endpoint on your server that will receive the `POST` callback. Must respond `2xx` within a few seconds (process async if needed).
`X-Webhook-Mode`	No	`terminal`	`terminal` — fires once at the final status (`COMPLETED`/`FAILED`/`ERROR`). `sync` — fires on every poll cycle plus the terminal event, and caps the queue’s polling delay at 15s for tighter progress updates.

Example: enable webhook

X-Webhook-URL: https://your-server.com/webhook/callback
X-Webhook-Mode: terminal

Callback Payload

Your endpoint receives a POST application/json with the same shape as the GET /v2/requests/status/{request_id} response. Example terminal callback (mode terminal):

{
  "request_id": "gpt-image-2_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "status": "COMPLETED",
  "model_id": "gpt-image-2",
  "error": null,
  "output": {
    "media_url": [
      "https://pub-582b7213209642b9b995c96c95a30381.r2.dev/v1/gpt-image-2_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx/output.png"
    ],
    "media_type": "image/png"
  },
  "created_at": "2026-05-22T13:17:32.110Z",
  "updated_at": "2026-05-22 13:19:23",
  "completed_at": "2026-05-22 13:19:23"
}

Failure callback shape

{
  "request_id": "gpt-image-2_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "status": "ERROR",
  "model_id": "gpt-image-2",
  "error": "Description of the error",
  "output": null,
  "created_at": "...",
  "updated_at": "...",
  "completed_at": "..."
}

Delivery semantics

terminal mode (default) — exactly one POST when the request reaches a terminal status. No callback during PROCESSING.
sync mode — POST on every status poll (with delay capped at ~15s) plus a final POST at terminal status. Use when you want progress updates.
Idempotency — use request_id as your idempotency key. Network retries can deliver the same callback more than once; your handler must tolerate duplicates.
Response — respond 200 OK within a few seconds. The queue does not block on slow handlers, but persistent failures may stop further deliveries.
HTTPS required — plain http:// URLs are rejected.

Request Parameters - Image Edit

Parameter	Required	Type	Default	Allowed values / range	Description
`prompt`	Yes	string	—	—	Text instruction describing the edit. Must be non-empty.
`image`	Yes	string or string[]	—	HTTPS URL(s) or data-URI(s)	Input image(s) to edit. Pass an array to combine multiple references.
`mask`	No	string	—	PNG, same dimensions as input	Black-and-white PNG marking the region to edit (in-painting). White = editable, black = preserve.
`n`	No	integer	1	1–10	Number of output variations to generate.
`size`	No	string	`"auto"`	`1024x1024`, `1024x1536`, `1536x1024`, `2048x2048`, `2048x1152`, `2160x3840`, `3840x2160`, `auto`, or custom W×H	Output dimensions.
`quality`	No	string	`"auto"`	`low`, `medium`, `high`, `auto`	Rendering quality. Higher = more detail, longer latency, higher cost.
`format`	No	string	`"png"`	`png`, `jpeg`, `webp`	Output file format. `jpeg` is fastest.
`output_compression`	No	integer	—	0–100	Compression level for jpeg / webp (no effect on png). Omit to use the OpenAI default.
`background`	No	string	`"auto"`	`opaque`, `auto`	Background handling. `transparent` is NOT supported for gpt-image-2.
`moderation`	No	string	`"auto"`	`auto`, `low`	Content moderation strictness. `low` is less restrictive.

Input image requirements: HTTPS URL or data:image/...;base64,... data-URI. PNG, JPEG, or WEBP. Multiple input images may be combined in a single edit request via the image array.

Edit-specific Notes

image as array — each entry is independently resolved (URL fetched, or base64 decoded). All are uploaded as repeated image[] parts. Useful for "combine these references" workflows.
mask semantics — must match the input image's dimensions. White pixels are editable; black pixels are preserved. PNG with alpha is accepted (transparent = editable). If mask is omitted, the entire image is in scope for the edit.
Multi-image + mask together — allowed, but the mask applies to the first input image only.
transparent background — NOT supported on gpt-image-2 (only opaque and auto).

Example Request

{
  "prompt": "Compose a gift basket containing all items, photorealistic, white background, with a Relax & Unwind ribbon",
  "image": [
    "https://example.com/body-lotion.png",
    "https://example.com/bath-bomb.png",
    "https://example.com/incense-kit.png",
    "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAA..."
  ],
  "mask": "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAA...",
  "n": 1,
  "size": "1024x1024",
  "quality": "high",
  "format": "png",
  "output_compression": 90,
  "background": "opaque",
  "moderation": "auto"
}

Response

{
  "request_id": "gpt-image-2_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "status": "QUEUED",
  "polling_url": "https://gateway.pixazo.ai/v2/requests/status/gpt-image-2_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
}

Request Headers

Header	Value
Content-Type	application/json
Cache-Control	no-cache
Ocp-Apim-Subscription-Key	YOUR_API_KEY

Response Handling

Common status codes.

Code	Meaning
202	Accepted — Request queued
400	Bad Request
401	Unauthorized
402	Insufficient Balance
403	Forbidden
429	Too Many Requests
500	Internal Server Error

Error Responses

Queue system errors and model validation errors.

Queue System Errors

// 402 — Insufficient balance
{
  "error": "Insufficient Balance",
  "message": "Your wallet does not have enough balance."
}

// 400 — Model not found
{
  "error": "Model not found",
  "message": "Model 'gpt-image-2' not found or is disabled"
}

Error via Status/Webhook

{
  "request_id": "gpt-image-2_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "status": "ERROR",
  "model_id": "gpt-image-2",
  "error": "Description of the error",
  "output": null
}

Retrieving Results

Poll the universal status endpoint to check progress and retrieve results.

Endpoint

GET https://gateway.pixazo.ai/v2/requests/status/{request_id}
Ocp-Apim-Subscription-Key: YOUR_API_KEY

cURL Example

curl -H "Ocp-Apim-Subscription-Key: YOUR_API_KEY" \
  "https://gateway.pixazo.ai/v2/requests/status/gpt-image-2_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"

Response (Completed)

{
  "request_id": "gpt-image-2_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "status": "COMPLETED",
  "model_id": "gpt-image-2",
  "error": null,
  "output": {
    "media_url": [
      "https://pub-582b7213209642b9b995c96c95a30381.r2.dev/v1/gpt-image-2_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx/output.png"
    ],
    "media_type": "image/png"
  },
  "created_at": "2026-03-31T10:00:00.000Z",
  "updated_at": "2026-03-31T10:00:15.000Z",
  "completed_at": "2026-03-31T10:00:15.000Z"
}

Response Fields

Field	Type	Description
request_id	string	Unique request identifier
status	string	QUEUED, PROCESSING, COMPLETED, FAILED, or ERROR
model_id	string	Model that processed the request
error	string\|null	Error message if failed
output.media_url	array	URLs to generated media (R2 CDN)
output.media_type	string	MIME type of the output
created_at	string	When request was created
completed_at	string\|null	When request completed
polling_url	string	Status URL (initial response only)

Status Values

Status	Description
QUEUED	Request accepted, waiting to be processed
PROCESSING	Being processed by the model
COMPLETED	Done — output contains the result
FAILED	Failed — check error field
ERROR	System error — not charged

Status Flow

QUEUED → PROCESSING → COMPLETED
                    → FAILED
                    → ERROR

Typical Workflow

Send a generate request to the API endpoint
Save the request_id from the response
Poll every 5-10 seconds: GET /v2/requests/status/{request_id}
When status is "COMPLETED", download from output.media_url

Tip: Use X-Webhook-URL header to get a callback instead of polling.

GPT Image 2 Image to Image (Image Editing) API Pricing

Resolution	Price (USD)
1024x1024	$0.006
1024x1536	$0.005
1536x1024	$0.005
1024x1024	$0.053
1024x1536	$0.041
1536x1024	$0.041
1024x1024	$0.211
1024x1536	$0.165
1536x1024	$0.165

2. GPT Image v1.5

GPT Image v1.5 Text to Image API Documentation

https://gateway.pixazo.ai/gpt-image-1-5-api-923/v1

Authentication

All requests require an API key passed via header.

Header	Type	Required	Description
Ocp-Apim-Subscription-Key	string	Yes	Your API subscription key

GPT-Image 1.5 API generate request - GPT Image 1.5 API

Request Code

POST https://gateway.pixazo.ai/gpt-image-1-5-api-923/v1/gpt-image-1-5-api-request
Content-Type: application/json
Cache-Control: no-cache
Ocp-Apim-Subscription-Key: YOUR_SUBSCRIPTION_KEY

{
  "prompt": "create a realistic image taken with iphone at these coordinates 41°43′32″N 49°56′49″W 15 April 1912",
  "image_size": "1024x1024",
  "background": "auto",
  "quality": "high",
  "num_images": 1,
  "output_format": "png"
}

import requests

url = "https://gateway.pixazo.ai/gpt-image-1-5-api-923/v1/gpt-image-1-5-api-request"
headers = {
    "Content-Type": "application/json",
    "Cache-Control": "no-cache",
    "Ocp-Apim-Subscription-Key": "YOUR_SUBSCRIPTION_KEY"
}
data = {
    "prompt": "create a realistic image taken with iphone at these coordinates 41°43′32″N 49°56′49″W 15 April 1912",
    "image_size": "1024x1024",
    "background": "auto",
    "quality": "high",
    "num_images": 1,
    "output_format": "png"
}

response = requests.post(url, json=data, headers=headers)
print(response.json())

const url = 'https://gateway.pixazo.ai/gpt-image-1-5-api-923/v1/gpt-image-1-5-api-request';
const headers = {
  'Content-Type': 'application/json',
  'Cache-Control': 'no-cache',
  'Ocp-Apim-Subscription-Key': 'YOUR_SUBSCRIPTION_KEY'
};
const data = {
  prompt: 'create a realistic image taken with iphone at these coordinates 41°43′32″N 49°56′49″W 15 April 1912',
  image_size: '1024x1024',
  background: 'auto',
  quality: 'high',
  num_images: 1,
  output_format: 'png'
};

fetch(url, {
  method: 'POST',
  headers: headers,
  body: JSON.stringify(data)
})
.then(response => response.json())
.then(data => console.log(data))
.catch(error => console.error('Error:', error));

curl -X POST "https://gateway.pixazo.ai/gpt-image-1-5-api-923/v1/gpt-image-1-5-api-request" \
  -H "Content-Type: application/json" \
  -H "Cache-Control: no-cache" \
  -H "Ocp-Apim-Subscription-Key: YOUR_SUBSCRIPTION_KEY" \
  --data-raw '{
    "prompt": "create a realistic image taken with iphone at these coordinates 41°43′32″N 49°56′49″W 15 April 1912",
    "image_size": "1024x1024",
    "background": "auto",
    "quality": "high",
    "num_images": 1,
    "output_format": "png"
  }'

Output

{
  "request_id": "gpt-image-1-5-api-923_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "status": "QUEUED",
  "polling_url": "https://gateway.pixazo.ai/v2/requests/status/gpt-image-1-5-api-923_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
}

Try Now

Webhook (Optional)

Add the X-Webhook-URL header to your submit request to receive a POST callback when the job completes — no polling required.

Webhook Headers

Header	Required	Default	Description
`X-Webhook-URL`	Yes (to enable)	—	HTTPS endpoint on your server that will receive the `POST` callback. Must respond `2xx` within a few seconds (process async if needed).
`X-Webhook-Mode`	No	`terminal`	`terminal` — fires once at the final status (`COMPLETED`/`FAILED`/`ERROR`). `sync` — fires on every poll cycle plus the terminal event, and caps the queue’s polling delay at 15s for tighter progress updates.

Example: enable webhook

X-Webhook-URL: https://your-server.com/webhook/callback
X-Webhook-Mode: terminal

Callback Payload

Your endpoint receives a POST application/json with the same shape as the GET /v2/requests/status/{request_id} response. Example terminal callback (mode terminal):

{
  "request_id": "gpt-image-1-5-api-923_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "status": "COMPLETED",
  "model_id": "gpt-image-1-5-api-923",
  "error": null,
  "output": {
    "media_url": [
      "https://pub-582b7213209642b9b995c96c95a30381.r2.dev/v1/gpt-image-1-5-api-923_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx/output.png"
    ],
    "media_type": "image/png"
  },
  "created_at": "2026-05-22T13:17:32.110Z",
  "updated_at": "2026-05-22 13:19:23",
  "completed_at": "2026-05-22 13:19:23"
}

Failure callback shape

{
  "request_id": "gpt-image-1-5-api-923_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "status": "ERROR",
  "model_id": "gpt-image-1-5-api-923",
  "error": "Description of the error",
  "output": null,
  "created_at": "...",
  "updated_at": "...",
  "completed_at": "..."
}

Delivery semantics

terminal mode (default) — exactly one POST when the request reaches a terminal status. No callback during PROCESSING.
sync mode — POST on every status poll (with delay capped at ~15s) plus a final POST at terminal status. Use when you want progress updates.
Idempotency — use request_id as your idempotency key. Network retries can deliver the same callback more than once; your handler must tolerate duplicates.
Response — respond 200 OK within a few seconds. The queue does not block on slow handlers, but persistent failures may stop further deliveries.
HTTPS required — plain http:// URLs are rejected.

Request Parameters - GPT-Image 1.5 API generate request

Parameter	Required	Type	Default	Allowed values / range	Description
`prompt`	Yes	string	—	—	Detailed text description of the desired image.
`image_size`	No	string	`"1024x1024"`	`1024x1024`, `1536x1024`, `1024x1536`, `auto`	Output dimensions — square, landscape, portrait, or auto.
`quality`	No	string	`"auto"`	`low`, `medium`, `high`, `auto`	Rendering quality. Higher = more detail, longer latency.
`background`	No	string	`"auto"`	`transparent`, `opaque`, `auto`	Background handling. `transparent` requires `output_format` = png or webp.
`num_images`	No	integer	1	1–10	Number of images to generate in one request.
`output_format`	No	string	`"png"`	`png`, `jpeg`, `webp`	Output file format.

Example Request

{
  "prompt": "create a realistic image taken with iphone at these coordinates 41°43′32″N 49°56′49″W 15 April 1912",
  "image_size": "1024x1024",
  "background": "auto",
  "quality": "high",
  "num_images": 1,
  "output_format": "png"
}

Response

{
  "request_id": "gpt-image-1-5-api-923_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "status": "QUEUED",
  "polling_url": "https://gateway.pixazo.ai/v2/requests/status/gpt-image-1-5-api-923_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"
}

Request Headers

Header	Value
Content-Type	application/json
Cache-Control	no-cache
Ocp-Apim-Subscription-Key	YOUR_SUBSCRIPTION_KEY

Response Handling

Common status codes.

Code	Meaning
202	Accepted — Request queued
400	Bad Request
401	Unauthorized
402	Insufficient Balance
403	Forbidden
429	Too Many Requests
500	Internal Server Error

Error Responses

Queue system errors and model validation errors.

Queue System Errors

// 402 — Insufficient balance
{
  "error": "Insufficient Balance",
  "message": "Your wallet does not have enough balance."
}

// 400 — Model not found
{
  "error": "Model not found",
  "message": "Model 'gpt-image-1-5-api-923' not found or is disabled"
}

Error via Status/Webhook

{
  "request_id": "gpt-image-1-5-api-923_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "status": "ERROR",
  "model_id": "gpt-image-1-5-api-923",
  "error": "Description of the error",
  "output": null
}

Retrieving Results

Poll the universal status endpoint to check progress and retrieve results.

Endpoint

GET https://gateway.pixazo.ai/v2/requests/status/{request_id}
Ocp-Apim-Subscription-Key: YOUR_API_KEY

cURL Example

curl -H "Ocp-Apim-Subscription-Key: YOUR_API_KEY" \
  "https://gateway.pixazo.ai/v2/requests/status/gpt-image-1-5-api-923_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx"

Response (Completed)

{
  "request_id": "gpt-image-1-5-api-923_019dxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
  "status": "COMPLETED",
  "model_id": "gpt-image-1-5-api-923",
  "error": null,
  "output": {
    "media_url": [
      "https://pub-582b7213209642b9b995c96c95a30381.r2.dev/v1/gpt-image-1-5-api-923_019dxxxx-xxxx/output.ext"
    ],
    "media_type": "application/octet-stream"
  },
  "created_at": "2026-03-31T10:00:00.000Z",
  "updated_at": "2026-03-31T10:00:15.000Z",
  "completed_at": "2026-03-31T10:00:15.000Z"
}

Response Fields

Field	Type	Description
request_id	string	Unique request identifier
status	string	QUEUED, PROCESSING, COMPLETED, FAILED, or ERROR
model_id	string	Model that processed the request
error	string\|null	Error message if failed
output.media_url	array	URLs to generated media (R2 CDN)
output.media_type	string	MIME type of the output
created_at	string	When request was created
completed_at	string\|null	When request completed
polling_url	string	Status URL (initial response only)

Status Values

Status	Description
QUEUED	Request accepted, waiting to be processed
PROCESSING	Being processed by the model
COMPLETED	Done — output contains the result
FAILED	Failed — check error field
ERROR	System error — not charged

Status Flow

QUEUED → PROCESSING → COMPLETED
                    → FAILED
                    → ERROR

Typical Workflow

Send a generate request to the API endpoint
Save the request_id from the response
Poll every 5-10 seconds: GET /v2/requests/status/{request_id}
When status is "COMPLETED", download from output.media_url

Tip: Use X-Webhook-URL header to get a callback instead of polling.

GPT Image v1.5 Text to Image API Pricing

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