Veo 3.1 Serverless API
Static images into high-quality videos with synchronized audio.
POST /v2/veo-3.1 · 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 "prompt": "A woman is giving a keynote presentation at a tech conference, wearing a sleek white blazer with the Veo 3.1 logo subtly embroidered, highlighted by ambient blue stage lighting. She is on a modern conference stage with geometric patterns and LED screens behind her, discussing how Veo 3.1 can integrate reference images to enhance AI-generated video content. The Veo 3.1 logo is also displayed prominently on a large digital screen behind her",
11 "duration": 8,
12 "resolution": "1080p",
13 "aspect_ratio": "16:9",
14 "generate_audio": True,
15 "negative_prompt": "no black and white, no sharp angles",
16}
17job = client.submit_async("veo-3.1", **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("veo-3.1", **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 "prompt": "A woman is giving a keynote presentation at a tech conference, wearing a sleek white blazer with the Veo 3.1 logo subtly embroidered, highlighted by ambient blue stage lighting. She is on a modern conference stage with geometric patterns and LED screens behind her, discussing how Veo 3.1 can integrate reference images to enhance AI-generated video content. The Veo 3.1 logo is also displayed prominently on a large digital screen behind her",
11 "duration": 8,
12 "resolution": "1080p",
13 "aspect_ratio": "16:9",
14 "generate_audio": True,
15 "negative_prompt": "no black and white, no sharp angles",
16}
17job = client.submit_async("veo-3.1", **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("veo-3.1", **payload)API Endpoint
https://api.segmind.com/v1/veo-3.1Parameters
promptrequiredstringDescribe the video content. Use clear, concise language for best results.
"A woman is giving a keynote presentation at a tech conference, wearing a sleek white blazer with the Veo 3.1 logo subtly embroidered, highlighted by ambient blue stage lighting. She is on a modern conference stage with geometric patterns and LED screens behind her, discussing how Veo 3.1 can integrate reference images to enhance AI-generated video content. The Veo 3.1 logo is also displayed prominently on a large digital screen behind her"aspect_ratiooptionalstringChoose aspect ratio: 16:9 for landscape, 9:16 for portrait mode.
"16:9""16:9""9:16"durationoptionalintegerChoose the video length: short is 4s, medium 6s, long 8s.
8468generate_audiooptionalbooleanEnable audio generation. Recommended for videos requiring sound.
trueimageoptionalstring (uri)Start generation from this image. Ideal for specific starting visuals.
nulllast_frameoptionalstring (uri)End video with this image. Useful for specific concluding visuals.
nullnegative_promptoptionalstringExclude elements from video. Useful for refining details.
"no black and white, no sharp angles"reference_imagesoptionalstring[]Use reference images for consistency. Essential for maintaining subject style.
resolutionoptionalstringSet video quality: 720p for standard, 1080p for high resolution.
"1080p""720p""1080p"seedoptionalintegerSets a random seed for consistency. Useful for repeated generations.
nullResponse 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/veo-3.1Submit — 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