FLUX 3 Klein Image Edit API
Pixel-perfect image editing with up to 10 references.
POST /v2/flux-3-klein-image-edit · 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 "flux-3-klein-image-edit",
9 images=["https://segmind-resources.s3.amazonaws.com/input/flux-3-image-edit-garage-src-6af504cd.jpg"],
10 prompt="Recolour only the motorcycle's fuel tank from cherry red to brushed copper. Keep the chrome, the tyres, the pegboard of hand tools, the brick wall and the lighting exactly unchanged.",
11 resolution="1k",
12 aspect_ratio="auto",
13 output_format="jpeg",
14)
15print(result["status"]) # COMPLETED
16print(result.get("output")) # model output (e.g. media URL)
17print(result["metrics"]["inference_time"]) # server compute seconds
18
19# --- Or submit + poll manually (track request_id, control the cadence) ---
20from segmind import SegmindClient, InferenceFailed, InferenceTimeout
21
22client = SegmindClient() # reads SEGMIND_API_KEY
23payload = {
24 "images": ["https://segmind-resources.s3.amazonaws.com/input/flux-3-image-edit-garage-src-6af504cd.jpg"],
25 "prompt": "Recolour only the motorcycle's fuel tank from cherry red to brushed copper. Keep the chrome, the tyres, the pegboard of hand tools, the brick wall and the lighting exactly unchanged.",
26 "resolution": "1k",
27 "aspect_ratio": "auto",
28 "output_format": "jpeg",
29}
30job = client.submit_async("flux-3-klein-image-edit", **payload)
31print(job.request_id) # available immediately
32try:
33 result = job.wait(timeout=600, interval=1.0)
34except InferenceTimeout as e:
35 print("still running:", e.request_id)
36except InferenceFailed as e:
37 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 "flux-3-klein-image-edit",
9 images=["https://segmind-resources.s3.amazonaws.com/input/flux-3-image-edit-garage-src-6af504cd.jpg"],
10 prompt="Recolour only the motorcycle's fuel tank from cherry red to brushed copper. Keep the chrome, the tyres, the pegboard of hand tools, the brick wall and the lighting exactly unchanged.",
11 resolution="1k",
12 aspect_ratio="auto",
13 output_format="jpeg",
14)
15print(result["status"]) # COMPLETED
16print(result.get("output")) # model output (e.g. media URL)
17print(result["metrics"]["inference_time"]) # server compute seconds
18
19# --- Or submit + poll manually (track request_id, control the cadence) ---
20from segmind import SegmindClient, InferenceFailed, InferenceTimeout
21
22client = SegmindClient() # reads SEGMIND_API_KEY
23payload = {
24 "images": ["https://segmind-resources.s3.amazonaws.com/input/flux-3-image-edit-garage-src-6af504cd.jpg"],
25 "prompt": "Recolour only the motorcycle's fuel tank from cherry red to brushed copper. Keep the chrome, the tyres, the pegboard of hand tools, the brick wall and the lighting exactly unchanged.",
26 "resolution": "1k",
27 "aspect_ratio": "auto",
28 "output_format": "jpeg",
29}
30job = client.submit_async("flux-3-klein-image-edit", **payload)
31print(job.request_id) # available immediately
32try:
33 result = job.wait(timeout=600, interval=1.0)
34except InferenceTimeout as e:
35 print("still running:", e.request_id)
36except InferenceFailed as e:
37 print("failed:", e.detail)API Endpoint
https://api.segmind.com/v1/flux-3-klein-image-editParameters
imagesrequiredstring[]1 to 10 images to edit, restyle or combine. The first is the image being edited. Refer to them in the prompt as Image 1, Image 2 or <ref_image_1>, <ref_image_2>. URL or base64.
promptrequiredstringWhat to change and what must stay the same. Supports bounding boxes: tag elements with <id> and append a JSON array of {id, bbox:[top,left,bottom,right] on a 0-1000 grid, desc}.
"Recolour only the motorcycle's fuel tank from cherry red to brushed copper. Keep the chrome, the tyres, the pegboard of hand tools, the brick wall and the lighting exactly unchanged."aspect_ratiooptionalstringauto keeps the first reference image's aspect ratio.
"auto""auto""21:9""2:1""16:9""3:2""7:5""4:3""5:4""1:1""4:5"+6 moreoutput_formatoptionalstringjpeg (smaller) or png (lossless).
"jpeg""jpeg""png"resolutionoptionalstringOutput size tier (equal pixel area; exact dimensions follow the aspect ratio). Price scales with the tier.
"1k""768sq""1k""1.5k""2k""4k"safety_toleranceoptionalintegerInput and output moderation level: 0 is strictest, 4 most permissive.
2Range: 0 - 4seedoptionalintegerFix the seed to reproduce a result; leave empty for a random one.
stepsoptionalintegerDenoising steps of the distilled model. 16 is full quality; fewer is faster and rougher. Same price either way.
16Range: 1 - 16Response 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/flux-3-klein-image-editSubmit — 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