Stable Diffusion 3 Medium Image to Image Serverless API
Stable Diffusion 3 Medium image-to-image is a cutting-edge AI tool that uses advanced image-to-image technology to transform one image into another.
POST /v2/sd3-med-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 "sd3-med-img2img",
9 prompt="photo of a boy holding phone on table,3d pixar style",
10 negative_prompt="low quality,less details",
11 image="https://segmind-sd-models.s3.amazonaws.com/display_images/sd3-img2img-ip.jpg",
12 num_inference_steps=20,
13 guidance_scale=5,
14 seed=698845,
15 samples=1,
16 strength=0.7,
17 sampler="dpmpp_2m",
18 scheduler="sgm_uniform",
19 base64=False,
20)
21print(result["status"]) # COMPLETED
22print(result.get("output")) # model output (e.g. media URL)
23print(result["metrics"]["inference_time"]) # server compute seconds
24
25# --- Or submit + poll manually (track request_id, control the cadence) ---
26from segmind import SegmindClient, InferenceFailed, InferenceTimeout
27
28client = SegmindClient() # reads SEGMIND_API_KEY
29payload = {
30 "prompt": "photo of a boy holding phone on table,3d pixar style",
31 "negative_prompt": "low quality,less details",
32 "image": "https://segmind-sd-models.s3.amazonaws.com/display_images/sd3-img2img-ip.jpg",
33 "num_inference_steps": 20,
34 "guidance_scale": 5,
35 "seed": 698845,
36 "samples": 1,
37 "strength": 0.7,
38 "sampler": "dpmpp_2m",
39 "scheduler": "sgm_uniform",
40 "base64": False,
41}
42job = client.submit_async("sd3-med-img2img", **payload)
43print(job.request_id) # available immediately
44try:
45 result = job.wait(timeout=600, interval=1.0)
46except InferenceTimeout as e:
47 print("still running:", e.request_id)
48except InferenceFailed as e:
49 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 "sd3-med-img2img",
9 prompt="photo of a boy holding phone on table,3d pixar style",
10 negative_prompt="low quality,less details",
11 image="https://segmind-sd-models.s3.amazonaws.com/display_images/sd3-img2img-ip.jpg",
12 num_inference_steps=20,
13 guidance_scale=5,
14 seed=698845,
15 samples=1,
16 strength=0.7,
17 sampler="dpmpp_2m",
18 scheduler="sgm_uniform",
19 base64=False,
20)
21print(result["status"]) # COMPLETED
22print(result.get("output")) # model output (e.g. media URL)
23print(result["metrics"]["inference_time"]) # server compute seconds
24
25# --- Or submit + poll manually (track request_id, control the cadence) ---
26from segmind import SegmindClient, InferenceFailed, InferenceTimeout
27
28client = SegmindClient() # reads SEGMIND_API_KEY
29payload = {
30 "prompt": "photo of a boy holding phone on table,3d pixar style",
31 "negative_prompt": "low quality,less details",
32 "image": "https://segmind-sd-models.s3.amazonaws.com/display_images/sd3-img2img-ip.jpg",
33 "num_inference_steps": 20,
34 "guidance_scale": 5,
35 "seed": 698845,
36 "samples": 1,
37 "strength": 0.7,
38 "sampler": "dpmpp_2m",
39 "scheduler": "sgm_uniform",
40 "base64": False,
41}
42job = client.submit_async("sd3-med-img2img", **payload)
43print(job.request_id) # available immediately
44try:
45 result = job.wait(timeout=600, interval=1.0)
46except InferenceTimeout as e:
47 print("still running:", e.request_id)
48except InferenceFailed as e:
49 print("failed:", e.detail)API Endpoint
https://api.segmind.com/v1/sd3-med-img2imgParameters
imagerequiredstring (uri)Input image
"https://segmind-sd-models.s3.amazonaws.com/display_images/sd3-img2img-ip.jpg"promptrequiredstringText prompt for image generation
"photo of a boy holding phone on table,3d pixar style"base64optionalbooleanBase64 encoding of the output image
falseguidance_scaleoptionalnumberGuidance scale for image generation
5Range: 1 - 20negative_promptoptionalstringNegative text prompt to avoid certain qualities
"low quality,less details"num_inference_stepsoptionalintegerNumber of inference steps for image generation
20Range: 1 - 100sampleroptionalstringSampler for the image generation process
"dpmpp_2m""euler""euler_pp""euler_ancestral""euler_ancestral_pp""heun""heunpp2""dpm_2""dpm_2_ancestral""lms""dpm_fast"+17 moresamplesoptionalintegerNumber of samples to generate
1scheduleroptionalstringScheduler for the image generation process
"sgm_uniform""normal""karras""exponential""sgm_uniform""simple""ddim_uniform"seedoptionalintegerSeed for random number generation
698845strengthoptionalnumberStrength of the image transformation
0.7Range: 0 - 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/sd3-med-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