Images
MarkdownGenerate and edit images in the OpenAI Images format.
Full guide
https://api.ailoot.ai/v1/images/generationscurl https://api.ailoot.ai/v1/images/generations \
-H "Authorization: Bearer $AILOOT_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "gpt-image-2.5",
"prompt": "Watercolor painting: a lighthouse on a cliff at dawn",
"size": "1024x1024"
}' img = client.images.generate(
model="gpt-image-2.5",
prompt="Watercolor painting: a lighthouse on a cliff at dawn",
size="1024x1024",
)
print(img.data[0].url or "base64:", (img.data[0].b64_json or "")[:40]){
"created": 1790812800,
"data": [
{ "url": "https://…/content" }
],
"usage": { "input_tokens": 18, "output_tokens": 1056 }
}Authentication
- Authorizationheaderrequired
The key in the format
Bearer sk-…. The following headers also work:x-api-keyorx-goog-api-key.
Request body
- modelstringrequired
Image model:
gpt-image-2.5-sunburst,gemini-3.1-flash-image,grok-imagine-image-2.0,qwen-image-3.0-pro,image-01,gpt-image-2,gemini-3.1-flash-lite-image,grok-imagine-image,wan2.7-image,gpt-image-2.5-sunburst-2026-09-08,gemini-3-pro-image,grok-imagine-image-qualityand another 4. - promptstringrequired
A description of the image.
- nintegeroptional
Number of images to generate. You are charged for each completed image.
- sizestringoptional
Size, for example
1024x1024. Supported sizes depend on the model. - qualitystringoptional
Quality, if supported by the model (for example,
low,medium,high). - response_formatstringoptional
urlorb64_json— if the model supports choosing the format.
Editing
https://api.ailoot.ai/v1/images/editsRequest multipart/form-data: the field image (one or more images), prompt, model, optionally mask.
Response
- data[]array
Completed images: a URL in
urlor data inb64_json, depending on the model.
Editing · multipart/form-data
: "${AILOOT_IMAGE_EDIT_MODEL:?Select a model whose actual card or GET /v1/models method supports /v1/images/edits}"
curl --fail-with-body --max-time 300 \
-D image-edit-headers.txt -o image-edit.json \
https://api.ailoot.ai/v1/images/edits \
-H "Authorization: Bearer $AILOOT_API_KEY" \
-F "model=$AILOOT_IMAGE_EDIT_MODEL" \
-F 'prompt=Keep the subject and replace the background with a sunset' \
-F 'image=@input.png'
input.png → image-edit.json → data[] → url | b64_json
import base64
import json
import mimetypes
import os
from pathlib import Path
import time
from urllib.parse import urljoin, urlsplit
from urllib.request import Request, urlopen
origin = "https://api.ailoot.ai"
out = Path("image-edit-results")
out.mkdir(exist_ok=True)
def save_all(data):
rows = data.get("data", [])
if not rows:
raise RuntimeError("No completed image data; keep the original response")
for index, row in enumerate(rows, 1):
if row.get("b64_json"):
content = base64.b64decode(row["b64_json"], validate=True)
suffix = ".png" if content.startswith(b"\x89PNG") else ".bin"
elif row.get("url"):
url = row["url"]
if urlsplit(url).scheme != "https":
raise ValueError("Expected the exact returned HTTPS image URL")
# Signed result URLs are downloaded without sending the API key to another host.
with urlopen(url, timeout=300) as response:
content = response.read()
suffix = mimetypes.guess_extension(response.headers.get_content_type()) or ".bin"
else:
raise RuntimeError("Image has neither url nor b64_json")
(out / ("image-%03d" % index + suffix)).write_bytes(content)
with open("image-edit.json", encoding="utf-8") as response:
save_all(json.load(response))
Images · async
The OpenAI and Anthropic SDKs usually retry network errors and 5xx responses automatically. Disable this for generation requests (max_retries=0) and check X-Should-Retry before a new attempt. A lost response does not mean the request was not executed.
import base64
import json
import mimetypes
import os
from pathlib import Path
import time
from urllib.parse import urljoin, urlsplit
from urllib.request import Request, urlopen
origin = "https://api.ailoot.ai"
key = os.environ["AILOOT_API_KEY"]
out = Path("image-results")
out.mkdir(exist_ok=True)
def api(url, payload=None):
url = urljoin(origin, url)
if urlsplit(url).scheme != "https" or urlsplit(url).netloc != "api.ailoot.ai":
raise ValueError("Unexpected API origin")
request = Request(url, data=None if payload is None else json.dumps(payload).encode(),
headers={"Authorization": "Bearer " + key, "Content-Type": "application/json"})
with urlopen(request, timeout=300) as response:
headers = dict(response.headers)
data = json.load(response)
(out / "response-headers.json").write_text(json.dumps(headers, indent=2))
return data, headers
def save_all(data):
rows = data.get("data", [])
if not rows:
raise RuntimeError("No completed image data; keep the original response")
for index, row in enumerate(rows, 1):
if row.get("b64_json"):
content = base64.b64decode(row["b64_json"], validate=True)
suffix = ".png" if content.startswith(b"\x89PNG") else ".bin"
elif row.get("url"):
url = row["url"]
if urlsplit(url).scheme != "https":
raise ValueError("Expected the exact returned HTTPS image URL")
# Signed result URLs are downloaded without sending the API key to another host.
with urlopen(url, timeout=300) as response:
content = response.read()
suffix = mimetypes.guess_extension(response.headers.get_content_type()) or ".bin"
else:
raise RuntimeError("Image has neither url nor b64_json")
(out / ("image-%03d" % index + suffix)).write_bytes(content)
# One POST. If its result is unknown, preserve it and check history; do not rerun creation.
task, headers = api("/v1/images/generations/async", {
"model": "gpt-image-2.5", "prompt": "Watercolor lighthouse at dawn", "size": "1024x1024"})
(out / "created-task.json").write_text(json.dumps(task, indent=2))
task_id = task.get("task_id") or task.get("id")
poll_url = task.get("poll_url") or headers.get("Location") or headers.get("location")
if not task_id or not poll_url:
raise RuntimeError("Keep the create response and Request ID; do not submit again")
for poll in range(60):
task, headers = api(poll_url) # Read the original task with the same key.
(out / "task-status.json").write_text(json.dumps(task, indent=2))
if task.get("status") == "completed":
result = task["result"]
(out / "image-response.json").write_text(json.dumps(result, indent=2))
save_all(result)
break
if task.get("status") == "failed":
raise RuntimeError(json.dumps(task.get("error")))
if task.get("status") != "processing" or task.get("result_pending_check"):
raise RuntimeError("Keep the original task ID and check it later; no new POST")
time.sleep(min(60, max(1, int(headers.get("Retry-After", headers.get("retry-after", "3"))))))
else:
raise TimeoutError("Polling stopped; resume GET reads using created-task.json, never repeat POST")