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LTX-2 19B Text-to-Video LoRA: Generazione realistica da testo a video con audio sincronizzato | RunComfy

ltx/ltx-2-19b/text-to-video/lora

Trasforma prompt testuali in video con audio sincronizzato, controllo dello stile tramite LoRA, nitidezza 4K e movimenti fluidi per pubblicità cinematografiche, storytelling e contenuti di brand.

Indice

1. Per iniziare2. Autenticazione3. Riferimento APIInvia una richiestaStato della richiestaRecupera i risultatiAnnulla richiesta4. File in ingressoFile ospitato (URL)5. SchemaSchema di inputSchema di output

1. Per iniziare

Usa l'API RunComfy per eseguire ltx/ltx-2-19b/text-to-video/lora. Per input e output accettati, consulta lo schema.

curl --request POST \
  --url https://model-api.runcomfy.net/v1/models/ltx/ltx-2-19b/text-to-video/lora \
  --header "Content-Type: application/json" \
  --header "Authorization: Bearer <token>" \
  --data '{
    "prompt": "An astronaut hatches from a fragile egg on the surface of the Moon, the shell cracking and peeling apart in gentle low-gravity motion. Fine lunar dust lifts and drifts outward with each movement, floating in slow arcs before settling back onto the ground. The astronaut pushes free in a deliberate, weightless motion, small fragments of the egg tumbling and spinning through the air. In the background, the deep darkness of space subtly shifts as stars glide with the camera's movement, emphasizing vast depth and scale. The camera performs a smooth, cinematic slow push-in, with natural parallax between the foreground dust, the astronaut, and the distant starfield. Ultra-realistic detail, physically accurate low-gravity motion, cinematic lighting, and a breath-taking, movie-like shot.An astronaut hatches from a fragile egg on the surface of the Moon, the shell cracking and peeling apart in gentle low-gravity motion. Fine lunar dust lifts and drifts outward with each movement, floating in slow arcs before settling back onto the ground. The astronaut pushes free in a deliberate, weightless motion, small fragments of the egg tumbling and spinning through the air. In the background, the deep darkness of space subtly shifts as stars glide with the camera's movement, emphasizing vast depth and scale. The camera performs a smooth, cinematic slow push-in, with natural parallax between the foreground dust, the astronaut, and the distant starfield. Ultra-realistic detail, physically accurate low-gravity motion, cinematic lighting, and a breath-taking, movie-like shot."
  }'

2. Autenticazione

Imposta la variabile d'ambiente YOUR_API_TOKEN con la tua chiave API (gestione nel Profilo) e includi in ogni richiesta un token Bearer nell'intestazione Authorization : Authorization: Bearer $YOUR_API_TOKEN.

3. Riferimento API

Invia una richiesta

Invia un job di generazione asincrono e ricevi subito un request_id e URL per stato, risultati e annullamento.

curl --request POST \
  --url https://model-api.runcomfy.net/v1/models/ltx/ltx-2-19b/text-to-video/lora \
  --header "Content-Type: application/json" \
  --header "Authorization: Bearer <token>" \
  --data '{
    "prompt": "An astronaut hatches from a fragile egg on the surface of the Moon, the shell cracking and peeling apart in gentle low-gravity motion. Fine lunar dust lifts and drifts outward with each movement, floating in slow arcs before settling back onto the ground. The astronaut pushes free in a deliberate, weightless motion, small fragments of the egg tumbling and spinning through the air. In the background, the deep darkness of space subtly shifts as stars glide with the camera's movement, emphasizing vast depth and scale. The camera performs a smooth, cinematic slow push-in, with natural parallax between the foreground dust, the astronaut, and the distant starfield. Ultra-realistic detail, physically accurate low-gravity motion, cinematic lighting, and a breath-taking, movie-like shot.An astronaut hatches from a fragile egg on the surface of the Moon, the shell cracking and peeling apart in gentle low-gravity motion. Fine lunar dust lifts and drifts outward with each movement, floating in slow arcs before settling back onto the ground. The astronaut pushes free in a deliberate, weightless motion, small fragments of the egg tumbling and spinning through the air. In the background, the deep darkness of space subtly shifts as stars glide with the camera's movement, emphasizing vast depth and scale. The camera performs a smooth, cinematic slow push-in, with natural parallax between the foreground dust, the astronaut, and the distant starfield. Ultra-realistic detail, physically accurate low-gravity motion, cinematic lighting, and a breath-taking, movie-like shot."
  }'

Stato della richiesta

Recupera lo stato corrente per un request_id ("in_queue", "in_progress", "completed" o "cancelled").

curl --request GET \
  --url https://model-api.runcomfy.net/v1/requests/{request_id}/status \
  --header "Authorization: Bearer <token>"

Recupera i risultati

Recupera output finali e metadati per il request_id; se il job non è completo, la risposta restituisce lo stato corrente per continuare il polling.

curl --request GET \
  --url https://model-api.runcomfy.net/v1/requests/{request_id}/result \
  --header "Authorization: Bearer <token>"

Annulla richiesta

Annulla un job in coda tramite request_id; i job in corso non possono essere annullati.

curl --request POST \
  --url https://model-api.runcomfy.net/v1/requests/{request_id}/cancel \
  --header "Authorization: Bearer <token>"

4. File in ingresso

File ospitato (URL)

Fornisci un URL HTTPS raggiungibile pubblicamente. L'host deve consentire fetch lato server (senza login/cookie), senza rate limit eccessivo o blocco bot. Consigliato: immagini ≤ 50 MB (~4K), video ≤ 100 MB (~2–5 min a 720p). Per asset privati, URL stabili o pre-firmati.

5. Schema

Schema di input

{
  "type": "object",
  "title": "Schema di input",
  "required": [
    "prompt"
  ],
  "properties": {
    "prompt": {
      "title": "Prompt",
      "description": "",
      "type": "string",
      "default": "An astronaut hatches from a fragile egg on the surface of the Moon, the shell cracking and peeling apart in gentle low-gravity motion. Fine lunar dust lifts and drifts outward with each movement, floating in slow arcs before settling back onto the ground. The astronaut pushes free in a deliberate, weightless motion, small fragments of the egg tumbling and spinning through the air. In the background, the deep darkness of space subtly shifts as stars glide with the camera's movement, emphasizing vast depth and scale. The camera performs a smooth, cinematic slow push-in, with natural parallax between the foreground dust, the astronaut, and the distant starfield. Ultra-realistic detail, physically accurate low-gravity motion, cinematic lighting, and a breath-taking, movie-like shot.An astronaut hatches from a fragile egg on the surface of the Moon, the shell cracking and peeling apart in gentle low-gravity motion. Fine lunar dust lifts and drifts outward with each movement, floating in slow arcs before settling back onto the ground. The astronaut pushes free in a deliberate, weightless motion, small fragments of the egg tumbling and spinning through the air. In the background, the deep darkness of space subtly shifts as stars glide with the camera's movement, emphasizing vast depth and scale. The camera performs a smooth, cinematic slow push-in, with natural parallax between the foreground dust, the astronaut, and the distant starfield. Ultra-realistic detail, physically accurate low-gravity motion, cinematic lighting, and a breath-taking, movie-like shot."
    },
    "resolution": {
      "title": "Risoluzione",
      "description": "Risoluzione di output.",
      "type": "string",
      "enum": [
        "480p",
        "720p",
        "1080p"
      ],
      "default": "720p"
    },
    "aspect_ratio": {
      "title": "Proporzioni (L:A)",
      "description": "Formato di output.",
      "type": "string",
      "enum": [
        "16:9",
        "9:16"
      ],
      "default": "16:9"
    },
    "duration": {
      "title": "Durata",
      "description": "Durata del video in secondi (5–20; predefinita: 5).",
      "type": "integer",
      "minimum": 5,
      "maximum": 20,
      "default": 5
    },
    "loras": {
      "title": "Configurazione LoRA",
      "description": "Elenco dei LoRA da applicare (massimo 3).",
      "type": "array",
      "items": {
        "path": {
          "title": "LoRA Percorso",
          "description": "URL o ID repository HuggingFace (proprietario/repo) dei pesi LoRA.",
          "type": "string",
          "format": "str",
          "default": ""
        },
        "scale": {
          "title": "LoRA Scala",
          "description": "Scala del modello LoRA.",
          "type": "float",
          "format": "float_slider_with_range",
          "minimum": 0,
          "maximum": 4,
          "default": 1
        }
      },
      "maxItems": 3,
      "minItems": 0
    },
    "seed": {
      "title": "Seed",
      "description": "Seed per risultati riproducibili (-1 per un valore casuale).",
      "type": "integer",
      "minimum": -1,
      "default": -1
    }
  }
}

Schema di output

{
  "output": {
    "type": "object",
    "properties": {
      "image": {
        "type": "string",
        "format": "uri",
        "description": "URL immagine singola"
      },
      "video": {
        "type": "string",
        "format": "uri",
        "description": "URL video singolo"
      },
      "images": {
        "type": "array",
        "description": "più URL immagine",
        "items": {
          "type": "string",
          "format": "uri"
        }
      },
      "videos": {
        "type": "array",
        "description": "più URL video",
        "items": {
          "type": "string",
          "format": "uri"
        }
      }
    }
  }
}
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