Wan 2.7 Reference to Video Serverless API
Character-consistent multi-subject videos from reference images.
POST /v2/wan2.7-r2v · submit + poll 1# pip install "segmind>=1.1.0"
2# export SEGMIND_API_KEY="YOUR_API_KEY"
3from segmind import SegmindClient, InferenceFailed, InferenceTimeout
4
5# Async (v2) — recommended for long-running / video models.
6# run() blocks up to 600s; submit_async + job.wait(timeout=...) sets a longer
7# deadline and keeps the request_id so you can re-poll later.
8client = SegmindClient() # reads SEGMIND_API_KEY
9payload = {
10 "reference_images": ["https://segmind-resources.s3.amazonaws.com/input/wan2.7-r2v-ref-image.jpg"],
11 "prompt": "Image1 walks through a lush green garden with blooming flowers, smiling warmly at the camera, golden hour lighting",
12 "duration": 5,
13 "negative_prompt": "blurry, low quality, distorted, watermark",
14 "resolution": "720P",
15 "seed": 42,
16}
17job = client.submit_async("wan2.7-r2v", **payload)
18print(job.request_id) # available immediately
19try:
20 result = job.wait(timeout=900, interval=2.0)
21 print(result["status"]) # COMPLETED
22 print(result.get("output")) # model output (e.g. video URL)
23except InferenceTimeout as e:
24 print("still running:", e.request_id) # re-poll later with this id
25except InferenceFailed as e:
26 print("failed:", e.detail)
27
28# Fast models (<=600s) can use the one-liner instead:
29# result = segmind.run("wan2.7-r2v", **payload) 1# pip install "segmind>=1.1.0"
2# export SEGMIND_API_KEY="YOUR_API_KEY"
3from segmind import SegmindClient, InferenceFailed, InferenceTimeout
4
5# Async (v2) — recommended for long-running / video models.
6# run() blocks up to 600s; submit_async + job.wait(timeout=...) sets a longer
7# deadline and keeps the request_id so you can re-poll later.
8client = SegmindClient() # reads SEGMIND_API_KEY
9payload = {
10 "reference_images": ["https://segmind-resources.s3.amazonaws.com/input/wan2.7-r2v-ref-image.jpg"],
11 "prompt": "Image1 walks through a lush green garden with blooming flowers, smiling warmly at the camera, golden hour lighting",
12 "duration": 5,
13 "negative_prompt": "blurry, low quality, distorted, watermark",
14 "resolution": "720P",
15 "seed": 42,
16}
17job = client.submit_async("wan2.7-r2v", **payload)
18print(job.request_id) # available immediately
19try:
20 result = job.wait(timeout=900, interval=2.0)
21 print(result["status"]) # COMPLETED
22 print(result.get("output")) # model output (e.g. video URL)
23except InferenceTimeout as e:
24 print("still running:", e.request_id) # re-poll later with this id
25except InferenceFailed as e:
26 print("failed:", e.detail)
27
28# Fast models (<=600s) can use the one-liner instead:
29# result = segmind.run("wan2.7-r2v", **payload)API Endpoint
https://api.segmind.com/v1/wan2.7-r2vParameters
promptrequiredstringDescribe the scene and action. Reference your inputs as Image 1, Video 1, etc.
"Image1 walks through a lush green garden with blooming flowers, smiling warmly at the camera, golden hour lighting"durationoptionalintegerLength of the generated video. 2–15s, but capped at 10s when a reference video is supplied.
5Range: 2 - 15first_frameoptionalstring (uri)Optional opening frame. The video starts from this exact image and adopts its aspect ratio — which overrides the Aspect ratio setting below.
negative_promptoptionalstringDescribe what to keep out of the video.
"blurry, low quality, distorted, watermark"prompt_extendoptionalbooleanLet the model rewrite short prompts for better results. Adds some latency.
trueratiooptionalstringAspect ratio of the output video. Ignored when a first frame is supplied.
"16:9""16:9""9:16""1:1""4:3""3:4"reference_imagesoptionalstring[]Character/object reference images. Refer to them in the prompt as Image 1, Image 2… Max 5 reference images and videos combined.
["https://segmind-resources.s3.amazonaws.com/input/wan2.7-r2v-ref-image.jpg"]reference_videosoptionalstring[]Motion/character reference videos. Max 5 reference images and videos combined. Supplying a video caps duration at 10s.
resolutionoptionalstringOutput resolution tier. 720P is faster and cheaper; 1080P for final deliverables.
"720P""720P""1080P"seedoptionalintegerControls randomness. Fix it for reproducible results.
42Range: 0 - 2147483647watermarkoptionalbooleanAdd an 'AI Generated' watermark in the lower-right corner.
falseResponse Type
Returns: Video
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/wan2.7-r2vSubmit — 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