01router
Models
VideoBlack Forest Labstext-to-videoimage-to-videoaudio

FLUX 3 Video

Black Forest Labs’ FLUX 3 video model: 5–20 s with audio, FLUX-level visual quality.

Model ID: flux-3-video

Playground

5 – 20

Estimated cost—

Use the same request from code — API docs

Provider prices for this request

Enter a prompt to compare provider prices.

Result

Your generation will appear here.

Pricing by provider

Prices are per unit; requests without a provider are routed to the cheapest provider that supports your parameters.

ProviderOptionPrice (USD)Credits
fal.airesolution: 720p$0.1710% off$0.153 / second39 / second
resolution: 1080p$0.2910% off$0.261 / second66 / second
Replicateresolution: 720p$0.1710% off$0.153 / second39 / second
resolution: 1080p$0.2910% off$0.261 / second66 / second
WaveSpeedAIresolution: 720p$0.1710% off$0.153 / second39 / second
resolution: 1080p$0.2910% off$0.261 / second66 / second
AtlasCloudresolution: 720p$0.1710% off$0.153 / second39 / second

API reference

Endpoints

Base URL: https://01router.com/api/v1

POST/generationsCreate a generation (charges credits)
GET/generations/{id}Get a generation; polls the provider while running
POST/quotePrice a request on every provider (no charge, no key needed)

Authentication

Send your API key as a Bearer token. Requests are billed to the key owner's credits.

Authorization: Bearer sk_xxxxxxxxxxxxxxxx
Get an API key

Request body

NameTypeRequiredDescription
modelstringYes"flux-3-video"
providerstringNoPin a provider; omit to auto-route to the cheapest. One of: fal | replicate | wavespeed | atlascloud
inputobjectYesModel parameters, see the input fields below.

input fields

Unified parameters work on every provider; some providers support a narrower range — check the quote endpoint or the playground.

NameTypeValuesDefault
prompt*text——
image_url
Optional start image (image-to-video)
image——
durationinteger5 – 205
resolutionenum720p | 1080p720p
aspect_ratioenum16:9 | 9:16 | 1:1 | 4:3 | 3:4 | 21:916:9
generate_audioboolean—true

Example request

curl https://01router.com/api/v1/generations \
  -H "Authorization: Bearer $API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "flux-3-video",
  "provider": "fal",
  "input": {
    "prompt": "A cinematic shot of a red fox running through snow",
    "duration": 5,
    "resolution": "720p",
    "aspect_ratio": "16:9",
    "generate_audio": true
  }
}'

# poll until status is "succeeded" or "failed"
curl https://01router.com/api/v1/generations/<id> -H "Authorization: Bearer $API_KEY"

Response

Pass the model id, its unified input parameters and optionally a provider slug. The response returns immediately with the task id; image models on synchronous providers may already be succeeded.

{
  "id": "gen_6f1c…",
  "object": "generation",
  "model": "flux-3-video",
  "type": "video",
  "provider": "fal",
  "status": "processing",
  "input": {
    "prompt": "…",
    "duration": 5,
    "resolution": "720p",
    "aspect_ratio": "16:9",
    "generate_audio": true
  },
  "outputs": [],
  "error": null,
  "credits": 0,
  "price_usd": 0,
  "created_at": "2026-10-23T08:00:00.000Z",
  "completed_at": null
}

Get the result

Poll every few seconds until status is succeeded or failed. Output URLs are provider-hosted and may expire — download them promptly.

curl https://01router.com/api/v1/generations/gen_6f1c… -H "Authorization: Bearer $API_KEY"

{ "id": "gen_6f1c…", "model": "flux-3-video", "status": "succeeded", "outputs": ["https://…"], … }

Quote

Same body as creating a generation. Returns every available provider sorted by price, plus the ones that cannot serve the request and why.

curl https://01router.com/api/v1/quote -H "Content-Type: application/json" \
  -d '{"model":"flux-3-video","input":{"prompt":"…","duration":5,"resolution":"720p","aspect_ratio":"16:9","generate_audio":true}}'

Auth, routing, billing and error codes are covered in Gateway API reference