FLUX 3 Max Image to Video API

Animate a photo into video with native synchronized audio.

PlaygroundAPI
Pricing
~31.84s
POST /v2/flux-3-max-image-to-video · 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    "image": "https://segmind-resources.s3.amazonaws.com/input/flux-3-max-image-to-video-firstframe.jpg",
11    "prompt": "The three drummers drive their raised bachi down into the drums in unison, lunging low on the downbeat, arms snapping through the strike and sweat flicking off them; the red paper lantern sways behind them. A low lateral dolly tracks past the drum skins at the moment of impact. Audio: thunderous synchronized taiko booms locked to each strike, sharp rim clacks, a shouted 'Sore!', a crowd murmuring in the dark.",
12    "duration": 5,
13    "resolution": "720p",
14    "aspect_ratio": "16:9",
15    "generate_audio": True,
16    "reasoning_level": "high",
17    "seed": 824610357,
18}
19job = client.submit_async("flux-3-max-image-to-video", **payload)
20print(job.request_id)                         # available immediately
21try:
22    result = job.wait(timeout=900, interval=2.0)
23    print(result["status"])                  # COMPLETED
24    print(result.get("output"))              # model output (e.g. video URL)
25except InferenceTimeout as e:
26    print("still running:", e.request_id)    # re-poll later with this id
27except InferenceFailed as e:
28    print("failed:", e.detail)
29
30# Fast models (<=600s) can use the one-liner instead:
31# result = segmind.run("flux-3-max-image-to-video", **payload)

API Endpoint

POSThttps://api.segmind.com/v1/flux-3-max-image-to-video

Parameters

imagerequired
string (uri)

First frame of the video (PNG, JPEG or WebP).

promptrequired
string

Describe how the video unfolds from the image: motion, camera and sound.

Default: "The camera pushes in slowly as the subject turns toward the light; gentle wind moves through the scene and soft ambient sound rises."
aspect_ratiooptional
string

'auto' follows the image's aspect ratio.

Default: "auto"
Allowed values :
"auto""21:9""2:1""16:9""4:3""1:1""3:4""9:16"
durationoptional
integer

Length of the video, 5 to 20 seconds. Billed per second of output.

Default: 5Range: 5 - 20
generate_audiooptional
boolean

Native synchronized audio. Off for a silent clip.

Default: true
last_frame_imageoptional
string (uri)

Optional last frame; the model interpolates from the first image to this one.

reasoning_leveloptional
string

How much the model reasons about the prompt before rendering. 'low' is faster.

Default: "high"
Allowed values :
Low→"low"
High→"high"
resolutionoptional
string

Output resolution. 1080p costs more per second than 720p.

Default: "720p"
Allowed values :
"720p""1080p"
seedoptional
integer

Seed for reproducible generation. -1 for random.

Default: -1Range: -1 - 999999999999999

Response 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. 1
    POST /v2/flux-3-max-image-to-video

    Submit — returns request_id, status_url, response_url

  2. 2
    GET /v2/requests/{id}/status

    Poll — until COMPLETED or FAILED

  3. 3
    GET /v2/requests/{id}

    Result — final response body

Status states

QUEUED— Accepted, waiting for a worker
PROCESSING— Running on a worker
COMPLETED— Done — result body is ready
FAILED— Errored (incl. content/RAI blocks)
  • 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.

400

Bad Request

Invalid parameters or request format

401

Unauthorized

Missing or invalid API key

403

Forbidden

Insufficient permissions

404

Not Found

Model or endpoint not found

406

Insufficient Credits

Not enough credits to process request

429

Rate Limited

Too many requests

500

Server Error

Internal server error

502

Bad Gateway

Service temporarily unavailable

504

Timeout

Request timed out