Luma Uni-1 Serverless API
Reasoning-first text-to-image and natural-language image editing.
POST /v2/luma-uni-1 · submit + poll 1# pip install "segmind>=1.1.0"
2# export SEGMIND_API_KEY="YOUR_API_KEY"
3import segmind
4
5# Async (v2): submit to the queue and block until COMPLETED.
6# run() returns the final result dict (600s deadline, 1.0s poll by default).
7result = segmind.run(
8 "luma-uni-1",
9 prompt="Change the sky to a dramatic sunset with warm orange and pink clouds, keep the town, boats, harbor and water unchanged",
10 image="https://segmind-resources.s3.amazonaws.com/input/luma-uni-1-input.jpg",
11 aspect_ratio="16:9",
12 style="auto",
13)
14print(result["status"]) # COMPLETED
15print(result.get("output")) # model output (e.g. media URL)
16print(result["metrics"]["inference_time"]) # server compute seconds
17
18# --- Or submit + poll manually (track request_id, control the cadence) ---
19from segmind import SegmindClient, InferenceFailed, InferenceTimeout
20
21client = SegmindClient() # reads SEGMIND_API_KEY
22payload = {
23 "prompt": "Change the sky to a dramatic sunset with warm orange and pink clouds, keep the town, boats, harbor and water unchanged",
24 "image": "https://segmind-resources.s3.amazonaws.com/input/luma-uni-1-input.jpg",
25 "aspect_ratio": "16:9",
26 "style": "auto",
27}
28job = client.submit_async("luma-uni-1", **payload)
29print(job.request_id) # available immediately
30try:
31 result = job.wait(timeout=600, interval=1.0)
32except InferenceTimeout as e:
33 print("still running:", e.request_id)
34except InferenceFailed as e:
35 print("failed:", e.detail) 1# pip install "segmind>=1.1.0"
2# export SEGMIND_API_KEY="YOUR_API_KEY"
3import segmind
4
5# Async (v2): submit to the queue and block until COMPLETED.
6# run() returns the final result dict (600s deadline, 1.0s poll by default).
7result = segmind.run(
8 "luma-uni-1",
9 prompt="Change the sky to a dramatic sunset with warm orange and pink clouds, keep the town, boats, harbor and water unchanged",
10 image="https://segmind-resources.s3.amazonaws.com/input/luma-uni-1-input.jpg",
11 aspect_ratio="16:9",
12 style="auto",
13)
14print(result["status"]) # COMPLETED
15print(result.get("output")) # model output (e.g. media URL)
16print(result["metrics"]["inference_time"]) # server compute seconds
17
18# --- Or submit + poll manually (track request_id, control the cadence) ---
19from segmind import SegmindClient, InferenceFailed, InferenceTimeout
20
21client = SegmindClient() # reads SEGMIND_API_KEY
22payload = {
23 "prompt": "Change the sky to a dramatic sunset with warm orange and pink clouds, keep the town, boats, harbor and water unchanged",
24 "image": "https://segmind-resources.s3.amazonaws.com/input/luma-uni-1-input.jpg",
25 "aspect_ratio": "16:9",
26 "style": "auto",
27}
28job = client.submit_async("luma-uni-1", **payload)
29print(job.request_id) # available immediately
30try:
31 result = job.wait(timeout=600, interval=1.0)
32except InferenceTimeout as e:
33 print("still running:", e.request_id)
34except InferenceFailed as e:
35 print("failed:", e.detail)API Endpoint
https://api.segmind.com/v1/luma-uni-1Parameters
promptrequiredstringEdit instruction or scene description in plain English. Name regions to keep for clean local edits.
"Change the sky to a dramatic sunset with warm orange and pink clouds, keep the town, boats, harbor and water unchanged"aspect_ratiooptionalstringOutput shape from nine presets. Use 16:9 for banners, 9:16 for mobile, 1:1 social.
"16:9""16:9""1:1""1:2""1:3""2:1""2:3""3:1""3:2""9:16"imageoptionalstring (uri)Optional source image URL to edit; omit for pure text-to-image. Provide an image to transform it.
"https://segmind-resources.s3.amazonaws.com/input/luma-uni-1-input.jpg"styleoptionalstringStyle preset, auto or manga. Pick manga for comic, webtoon and anime looks.
"auto""auto""manga"Response Type
Returns: Image
Asynchronous requests (v2)
Use Async for video, long-running (>~60s), or high-concurrency workloads; Sync is simplest for fast image & LLM calls. Async submits a request and you poll it to completion.
- 1
POST /v2/luma-uni-1Submit — returns request_id, status_url, response_url
- 2
GET /v2/requests/{id}/statusPoll — until COMPLETED or FAILED
- 3
GET /v2/requests/{id}Result — final response body
Status states
- A FAILED request is served as HTTP 422 — the body still carries the error detail.
- An unknown or expired request_id returns HTTP 404.
- Results are retained for 1 hour, then expire.
- Content / RAI blocks surface as FAILED, not a separate state.
- Track completion by polling the status endpoint.
Common Error Codes
The API returns standard HTTP status codes. Detailed error messages are provided in the response body.
Bad Request
Invalid parameters or request format
Unauthorized
Missing or invalid API key
Forbidden
Insufficient permissions
Not Found
Model or endpoint not found
Insufficient Credits
Not enough credits to process request
Rate Limited
Too many requests
Server Error
Internal server error
Bad Gateway
Service temporarily unavailable
Timeout
Request timed out