FLUX 3 Max Text to Video API
Text-to-video with native audio, up to 20 seconds, 1080p.
POST /v2/flux-3-max-text-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 "prompt": "Three taiko drummers in indigo happi coats drive their wooden bachi into a huge nagado-daiko and two shime-daiko in unison, lunging low on every downbeat, sweat flicking off their arms; a hanging red paper lantern sways behind them on a wooden matsuri stage. The camera dollies laterally past them at the height of the drum skins. Audio: thunderous synchronized drum booms locked to each strike, sharp rim clacks, a shouted 'Sore!', a crowd murmuring in the dark.",
11 "duration": 5,
12 "resolution": "720p",
13 "aspect_ratio": "16:9",
14 "generate_audio": True,
15 "reasoning_level": "high",
16 "seed": 94355960,
17}
18job = client.submit_async("flux-3-max-text-to-video", **payload)
19print(job.request_id) # available immediately
20try:
21 result = job.wait(timeout=900, interval=2.0)
22 print(result["status"]) # COMPLETED
23 print(result.get("output")) # model output (e.g. video URL)
24except InferenceTimeout as e:
25 print("still running:", e.request_id) # re-poll later with this id
26except InferenceFailed as e:
27 print("failed:", e.detail)
28
29# Fast models (<=600s) can use the one-liner instead:
30# result = segmind.run("flux-3-max-text-to-video", **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": "Three taiko drummers in indigo happi coats drive their wooden bachi into a huge nagado-daiko and two shime-daiko in unison, lunging low on every downbeat, sweat flicking off their arms; a hanging red paper lantern sways behind them on a wooden matsuri stage. The camera dollies laterally past them at the height of the drum skins. Audio: thunderous synchronized drum booms locked to each strike, sharp rim clacks, a shouted 'Sore!', a crowd murmuring in the dark.",
11 "duration": 5,
12 "resolution": "720p",
13 "aspect_ratio": "16:9",
14 "generate_audio": True,
15 "reasoning_level": "high",
16 "seed": 94355960,
17}
18job = client.submit_async("flux-3-max-text-to-video", **payload)
19print(job.request_id) # available immediately
20try:
21 result = job.wait(timeout=900, interval=2.0)
22 print(result["status"]) # COMPLETED
23 print(result.get("output")) # model output (e.g. video URL)
24except InferenceTimeout as e:
25 print("still running:", e.request_id) # re-poll later with this id
26except InferenceFailed as e:
27 print("failed:", e.detail)
28
29# Fast models (<=600s) can use the one-liner instead:
30# result = segmind.run("flux-3-max-text-to-video", **payload)API Endpoint
https://api.segmind.com/v1/flux-3-max-text-to-videoParameters
promptrequiredstringDescribe the scene, subject, motion, camera and sound.
"A red panda walks along a mossy log in a sunlit forest, pausing to sniff the air before climbing over a fallen branch. Soft morning light filters through the canopy. Ambient birdsong and rustling leaves."aspect_ratiooptionalstring'auto' uses 16:9.
"auto""auto""21:9""2:1""16:9""4:3""1:1""3:4""9:16"durationoptionalintegerLength of the video, 5 to 20 seconds. Billed per second of output.
5Range: 5 - 20generate_audiooptionalbooleanNative synchronized audio. Off for a silent clip.
truereasoning_leveloptionalstringHow much the model reasons about the prompt before rendering. 'low' is faster.
"high""low""high"resolutionoptionalstringOutput resolution. 1080p costs more per second than 720p.
"720p""720p""1080p"seedoptionalintegerSeed for reproducible generation. -1 for random.
-1Range: -1 - 999999999999999Response 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/flux-3-max-text-to-videoSubmit — 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