Stable Diffusion img2img Serverless API
This model uses diffusion-denoising mechanism as first proposed by SDEdit, Stable Diffusion is used for text-guided image-to-image translation. This model uses the weights from Stable Diffusion to generate new images from an input image using StableDiffusionImg2ImgPipeline from diffusers
POST /v2/sd1.5-img2img · 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 "sd1.5-img2img",
9 image="/sd-img2img-input.jpeg",
10 samples=1,
11 prompt="A fantasy landscape, trending on artstation, mystical sky",
12 negative_prompt="nude, disfigured, blurry",
13 scheduler="DDIM",
14 num_inference_steps=25,
15 guidance_scale=10.5,
16 strength=0.75,
17 seed=98877465625,
18 img_width=512,
19 img_height=512,
20 base64=False,
21)
22print(result["status"]) # COMPLETED
23print(result.get("output")) # model output (e.g. media URL)
24print(result["metrics"]["inference_time"]) # server compute seconds
25
26# --- Or submit + poll manually (track request_id, control the cadence) ---
27from segmind import SegmindClient, InferenceFailed, InferenceTimeout
28
29client = SegmindClient() # reads SEGMIND_API_KEY
30payload = {
31 "image": "/sd-img2img-input.jpeg",
32 "samples": 1,
33 "prompt": "A fantasy landscape, trending on artstation, mystical sky",
34 "negative_prompt": "nude, disfigured, blurry",
35 "scheduler": "DDIM",
36 "num_inference_steps": 25,
37 "guidance_scale": 10.5,
38 "strength": 0.75,
39 "seed": 98877465625,
40 "img_width": 512,
41 "img_height": 512,
42 "base64": False,
43}
44job = client.submit_async("sd1.5-img2img", **payload)
45print(job.request_id) # available immediately
46try:
47 result = job.wait(timeout=600, interval=1.0)
48except InferenceTimeout as e:
49 print("still running:", e.request_id)
50except InferenceFailed as e:
51 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 "sd1.5-img2img",
9 image="/sd-img2img-input.jpeg",
10 samples=1,
11 prompt="A fantasy landscape, trending on artstation, mystical sky",
12 negative_prompt="nude, disfigured, blurry",
13 scheduler="DDIM",
14 num_inference_steps=25,
15 guidance_scale=10.5,
16 strength=0.75,
17 seed=98877465625,
18 img_width=512,
19 img_height=512,
20 base64=False,
21)
22print(result["status"]) # COMPLETED
23print(result.get("output")) # model output (e.g. media URL)
24print(result["metrics"]["inference_time"]) # server compute seconds
25
26# --- Or submit + poll manually (track request_id, control the cadence) ---
27from segmind import SegmindClient, InferenceFailed, InferenceTimeout
28
29client = SegmindClient() # reads SEGMIND_API_KEY
30payload = {
31 "image": "/sd-img2img-input.jpeg",
32 "samples": 1,
33 "prompt": "A fantasy landscape, trending on artstation, mystical sky",
34 "negative_prompt": "nude, disfigured, blurry",
35 "scheduler": "DDIM",
36 "num_inference_steps": 25,
37 "guidance_scale": 10.5,
38 "strength": 0.75,
39 "seed": 98877465625,
40 "img_width": 512,
41 "img_height": 512,
42 "base64": False,
43}
44job = client.submit_async("sd1.5-img2img", **payload)
45print(job.request_id) # available immediately
46try:
47 result = job.wait(timeout=600, interval=1.0)
48except InferenceTimeout as e:
49 print("still running:", e.request_id)
50except InferenceFailed as e:
51 print("failed:", e.detail)API Endpoint
https://api.segmind.com/v1/sd1.5-img2imgParameters
imagerequiredstring (uri)Input Image.
promptrequiredstringPrompt to render
base64optionalbooleanBase64 encoding of the output image.
falseguidance_scaleoptionalnumberScale for classifier-free guidance
7.5Range: 0.1 - 25img_heightoptionalintegerImage resolution.
512512768img_widthoptionalintegerImage resolution.
512512768negative_promptoptionalstringPrompts to exclude, eg. 'bad anatomy, bad hands, missing fingers'
num_inference_stepsoptionalintegerNumber of denoising steps.
20Range: 20 - 100samplesoptionalintegerNumber of samples to generate.
1Range: 1 - 4scheduleroptionalstringType of scheduler.
"DDIM""DDIM""DPM Multi""DPM Single""Euler a""Euler""Heun""DPM2 a Karras""DPM2 Karras""LMS""PNDM"+2 moreseedoptionalintegerSeed for image generation.
-1strengthoptionalnumberHow much to transform the reference image
1Range: 0.1 - 1Response 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/sd1.5-img2imgSubmit — 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