Luma Photon Text to Image Serverless API
Luma Photon is a powerful AI-driven text-to-image model offering high-quality visuals with unmatched speed and precision. Ideal for creatives, it excels in instruction-following, composition, and aesthetic quality, transforming ideas into stunning images
POST /v2/luma-photon-txt-2-img · 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-photon-txt-2-img",
9 prompt="A train car is engulfed in a massive explosion, with flames and smoke billowing into the sky as debris flies in all directions, cinematic photograph, explosive action, high contrast, dynamic lighting",
10 aspect_ratio="1:1",
11)
12print(result["status"]) # COMPLETED
13print(result.get("output")) # model output (e.g. media URL)
14print(result["metrics"]["inference_time"]) # server compute seconds
15
16# --- Or submit + poll manually (track request_id, control the cadence) ---
17from segmind import SegmindClient, InferenceFailed, InferenceTimeout
18
19client = SegmindClient() # reads SEGMIND_API_KEY
20payload = {
21 "prompt": "A train car is engulfed in a massive explosion, with flames and smoke billowing into the sky as debris flies in all directions, cinematic photograph, explosive action, high contrast, dynamic lighting",
22 "aspect_ratio": "1:1",
23}
24job = client.submit_async("luma-photon-txt-2-img", **payload)
25print(job.request_id) # available immediately
26try:
27 result = job.wait(timeout=600, interval=1.0)
28except InferenceTimeout as e:
29 print("still running:", e.request_id)
30except InferenceFailed as e:
31 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-photon-txt-2-img",
9 prompt="A train car is engulfed in a massive explosion, with flames and smoke billowing into the sky as debris flies in all directions, cinematic photograph, explosive action, high contrast, dynamic lighting",
10 aspect_ratio="1:1",
11)
12print(result["status"]) # COMPLETED
13print(result.get("output")) # model output (e.g. media URL)
14print(result["metrics"]["inference_time"]) # server compute seconds
15
16# --- Or submit + poll manually (track request_id, control the cadence) ---
17from segmind import SegmindClient, InferenceFailed, InferenceTimeout
18
19client = SegmindClient() # reads SEGMIND_API_KEY
20payload = {
21 "prompt": "A train car is engulfed in a massive explosion, with flames and smoke billowing into the sky as debris flies in all directions, cinematic photograph, explosive action, high contrast, dynamic lighting",
22 "aspect_ratio": "1:1",
23}
24job = client.submit_async("luma-photon-txt-2-img", **payload)
25print(job.request_id) # available immediately
26try:
27 result = job.wait(timeout=600, interval=1.0)
28except InferenceTimeout as e:
29 print("still running:", e.request_id)
30except InferenceFailed as e:
31 print("failed:", e.detail)API Endpoint
https://api.segmind.com/v1/luma-photon-txt-2-imgParameters
promptrequiredstringPrompt to render
aspect_ratiooptionalstringAspect ratio of the output image
"1:1""1:1""16:9""2:3""3:2""4:5""5:4""9:16""9:21""21:9"Response Type
Returns: Text/JSON
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-photon-txt-2-imgSubmit — 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