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Flux 3 Extend Video Draft

Integrar

ID dal model blackforestlabs/flux-3/extend-video/draft
# Run the model; wait up to 20 s for the finished result in the same call
curl -X POST "https://vit.doitong.com/api/v1/run/blackforestlabs/flux-3/extend-video/draft?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
    "video": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
  }'

# Still "queued" or "running"? Poll with the id from the response:
curl "https://vit.doitong.com/api/v1/requests/REQUEST_ID?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY"

Questa dumonda: $2,40 2 400 credits API Lantschar sin questa pagina

Obtegna ina clav API
Black Forest Labs · Video

Tes emprim resultat vegn qua

Construis ina dumonda sutvart e l'exequescha cun tia clav API. Outputs vegnan copiads en nossa memorisaziun, conservads per adina u 7 dis gratuitamain.

Construir ina dumonda

Ils controls vegnan generads dal schema dal model. Il code e ​​il pretsch s'actualiseschan durant che ti als midas.

•obligatori

Descripziun textuala dal video da brouziun.

•obligatori video_url
Trametta in datoteca u

MP4 da funtauna furnì tras URL u data URI, cun ina grondezza maximala da 50 MiB.

duration auto

Lunghezza da la brouziun, inditgada sco entir da 5 fin 20 secundas u sco `auto`.

aspect_ratio standard auto

Proporziun da l'output da brouziun; `auto` lascha la tscherna al model.

Avanzà safety_tolerance
standard 2

La toleranza da segirezza dal video utilisescha ina scala, nua che la regulaziun la pli permissiva è 4 e la pli stricta è 0.

POST /run/blackforestlabs/flux-3/extend-video/draft?wait=20 calculaziun → $2,40
# Run the model; wait up to 20 s for the finished result in the same call
curl -X POST "https://vit.doitong.com/api/v1/run/blackforestlabs/flux-3/extend-video/draft?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
    "video": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
  }'

# Still "queued" or "running"? Poll with the id from the response:
curl "https://vit.doitong.com/api/v1/requests/REQUEST_ID?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY"

Executar questa dumonda

Tia clav resta en quest browser: ella vegn tramessa mo al Doitong API e memorisada (localStorage) mo sch'ella scheccas Tiar a memoria. Obtegnair ina clav API

Davart Flux 3 Extend Video Draft

Prolungescha in video d'entrada (`video_url`, MP4, maximalmain 50 MiB) tenor in `prompt`. `duration` è auto u in entir numer da secundas, e `aspect_ratio` tanscha da 21:9 fin 9:16 u auto. `generate_audio` activa u disactiva il tun, e `safety_tolerance` va da 0 fin 4. Il `draft_cache` returnà po vegnir dà a `draft-enhance` per in renderisar da qualitad cumplaina.

Parameters

Invia u il num canonic u il num nativ, betg omaduas. Nums canonics

NumTip StandardPermess Descripziun
promptobligatori
Tipstring
Descripziun textuala dal video da brouziun.
aspect_ratioopziunal
Tipenum
Standardauto
auto21:92:116:94:31:13:49:16
Proporziun da l'output da brouziun; `auto` lascha la tscherna al model.
durationopziunal
Tipenum
Standardauto
auto5678910111213141516171819
+1 dapli20
Lunghezza da la brouziun, inditgada sco entir da 5 fin 20 secundas u sco `auto`.
generate_audioopziunal
Tipboolean
Standardtrue
Controlla la generaziun d'audio per il video da brouziun.
safety_toleranceopziunal
Tipinteger
Standard2
0 – 4
La toleranza da segirezza dal video utilisescha ina scala, nua che la regulaziun la pli permissiva è 4 e la pli stricta è 0.
video_urlobligatori video
Tipurl · video
MP4 da funtauna furnì tras URL u data URI, cun ina grondezza maximala da 50 MiB.
obligatori Num canonic, er acceptà

Ils parameters da datotecas acceptan ina URL publica https://, ina URI data: fin a 10 MB u il file_url d'ina chargiada. Datotecas

Output

GET /requests/req_8k2m4q7x1z9c3v5b6n0p2r4t
{
  "id": "req_8k2m4q7x1z9c3v5b6n0p2r4t",
  "object": "request",
  "model": "blackforestlabs/flux-3/extend-video/draft",
  "status": "succeeded",
  "created_at": "2026-10-20T12:00:00Z",
  "started_at": "2026-10-20T12:00:02Z",
  "completed_at": "2026-10-20T12:00:09Z",
  "queue_position": null,
  "cost": {
    "credits": 2400,
    "usd": "2.40",
    "charged": 2400,
    "refunded": 0
  },
  "input": {
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
    "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
  },
  "output": {
    "video": {
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.mp4",
      "content_type": "video/mp4",
      "file_name": "0-output.mp4",
      "file_size": 1843200
    },
    "draft_cache": {
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.mp4",
      "content_type": "video/mp4",
      "file_name": "0-output.mp4",
      "file_size": 1843200
    }
  },
  "outputs": [
    {
      "type": "video",
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.mp4",
      "content_type": "video/mp4",
      "file_size": 1843200,
      "width": 1280,
      "height": 720,
      "duration": 5,
      "stored": true
    }
  ],
  "error": null,
  "metrics": {
    "inference_seconds": 6.8
  },
  "urls": {
    "self": "https://vit.doitong.com/api/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t",
    "cancel": "https://vit.doitong.com/api/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t/cancel"
  }
}
Tias datotecas, tia decisiunMintga outputs[].url è ina copia en nossa memorisaziun: conservada per adina (pajà per GB-mes) u 7 dis gratuitamain, tenor la configuraziun dal conto u ?storage=.
La medema structura per mintga modeltype, url, content_type, width, height e duration, tant per maletgs sco per video e audio. output è l'object da resultat dal model sez.
Champs da l'output
video
object {url, content_type, file_name, file_size}Video producì sco brouziun.
draft_cache
object {url, content_type, file_name, file_size} | nullDatas da cache per renderisar ina brouziun en qualitad cumpleta tras `draft-enhance`, memorisadas en in pacchet persistent e criptà. Quest output manca sche il partenari n'ha betg restituì in pacchet per la brouziun.

Dapli models: Video a video

Per agents AI: questa pagina sco Markdown è disponibla sut https://doitong.com/rm/developers/models/blackforestlabs/flux-3/extend-video/draft.md. Tut ils models e las guidas: https://doitong.com/developers/llms.txt