# Ltx 2.3 Quality · Render to Real API

> Breytir 3D-, CG- eða leikjaútgáfumyndskeiði í ljósraunsætt myndskeið með stillanlegum styrk

Breytir 3D-myndgerð úr `video_url` í raunsærra útlit. `intensity` getur verið light, strong eða strong-v2, frá vægum til kröftugra áhrifa. Valfrjálst `image_url` stillir ljósraunsæjan fyrsta ramma og `enable_detail_refine` bætir við annarri skerpingu með `detail_refine_strength` frá 0.3 to 0.95. `prompt` heldur `3DREAL`-kveikjunni og úttakið er 480p eða 720p.

- Model id: `ltx-2.3-quality/render-to-real`
- Made by: Lightricks
- Category: Video to Video
- Output: video
- Price per megapixel of your output video: from $0.00241 / megapixel of output video (cheapest run $0.003 (3 API credits))
- Run: `POST https://api.doitong.com/v1/run/ltx-2.3-quality/render-to-real`
- Quote: `POST https://api.doitong.com/v1/quote/ltx-2.3-quality/render-to-real`
- Docs page: https://doitong.com/is/developers/models/ltx-2.3-quality/render-to-real

## Pricing

Price: **from $0.00241 / megapixel of output video** (the lowest tier; the quote prices your exact input). Price per megapixel of your output video: the input files are measured before the run (length, resolution, frame rate). The quote measures the same files and is exactly what the run charges.

Price by tier:

- base rate: $0.00241 / megapixel of output video
- detail refine: $0.00963 / megapixel of output video

The full example input below costs $0.27 = 270 API credits (112 MP output video × $0.002408).

Prices are the upstream price in USD, paid from the API balance in API credits (1000 API credits = 1 USD). `POST https://api.doitong.com/v1/quote/ltx-2.3-quality/render-to-real` with the same JSON body returns the exact price for that input; the quote is exactly what a run charges. Invalid input is never charged and failed or canceled requests are refunded automatically.

## Input parameters

Send either the canonical name or the native field name (not both). Canonical names are the same across models.

| Parameter | Canonical name | Type | Required | Default | Allowed values / range | Description |
|---|---|---|---|---|---|---|
| `video_url` | `video` | string (video URL) | yes |  |  | URL sem vísar á 3D-, CG- eða leikjagerð myndband fyrir ljósraunsæja umbreytingu. |
| `image_url` | `image` | string (image URL) \| null | no |  |  | Valfrjáls myndfesting fyrir ramma 0 sem skilgreinir ljósraunsætt útlit hans. Án hennar leiðbeinir aðeins myndgerðin niðurstöðunni; þegar hún er gefin upp verður myndin fyrsti ramminn, í samræmi við mynd-í-myndband-þjálfun aðlögunarinnar. |
| `intensity` |  | enum (string) | no | `light` | `light`, `strong`, `strong-v2` | Umbreytingarstig ljósraunsæis, þar sem `strong-v2` velur nýjustu endurbættu aðlögunina fyrir betra samræmi milli sena, hljóðs, talandi persóna og heildargæða. Fyrir aðra valkosti skaltu velja `light` til að varðveita meira af útliti og hreyfingu upprunamyndgerðarinnar, eða `strong` fyrir ýktari breytingar í átt að ljósraunsæi. |
| `enable_detail_refine` |  | boolean | no | `false` |  | Virkjar viðbótarbetrumbótastig til að auka skerpingu og upplausn; sjálfgefið óvirkt. Eftir grunnefnagerð stækkar rúmlegur uppkvarði dulmyndbandsins um 2x og stutt smáatriðastig betrumbætir það með eimuðu líkani. |
| `detail_refine_strength` |  | number | no | `0.75` | 0.3 – 0.95 | Afmyndunarstyrkur smáatriðastigs, sjálfgefið 0.75 og aðeins notaður þegar `enable_detail_refine` er virkt. Fyrir mildari breytingar sem varðveita grunnniðurstöðuna skaltu nota lægra gildi; hækkun þess endurgerir smáatriði í meira mæli en getur valdið meiri frávikum. |
| `prompt` |  | string | no | `3DREAL.` |  | Textakvaðning fyrir æskilega ljósraunsæja niðurstöðu, skrifuð á eftir forútfylltu `3DREAL`-virkjunarkveikjunni. Hvorki eyðing kvaðningarinnar né virkjun kvaðningarstækkunar fjarlægir þá kveikju; hún er alltaf varðveitt. |
| `resolution` |  | enum (string) | no | `720p` | `480p`, `720p` | Veldu upplausn á styttri hlið úttaksins en haltu hlutfalli upprunans: 480p gefur mýkri niðurstöður fyrir myndbönd allt að um 15 sekúndum, en 720p gefur skarpari niðurstöður í allt að um 6 sekúndur. Veldu 480p fyrir lengri myndbönd vegna þess að IC-LoRA-stýrislóðin takmarkar upplausn margfaldaða með fjölda ramma; beiðnum sem fara yfir þann fjárhagsramma er hafnað með skýrum villum. Reiknaðu lengd úttaksins sem `num_frames` / `frames_per_second`. |
| `num_frames` |  | integer | no | `121` | 9 – 481 | Fjöldi ramma í úttaki, háður IC-LoRA-fjárhagsramma fyrir upplausn margfaldaða með römmum: um 6 sekúndur við 720p eða 15 sekúndur við 480p. Ef fjárhagsramminn er yfirstiginn skilar kerfið 422; lækkaðu `num_frames` eða veldu 480p. Lengd myndbands í sekúndum jafngildir `num_frames` / `frames_per_second`. |
| `frames_per_second` |  | number | no | `24` | 1 – 60 | Rammatíðni úttaksvídeós, mæld í römmum á sekúndu. |
| `num_inference_steps` |  | integer | no | `15` | 8 – 30 | Stilltu hversu mörg ályktunarskref eigi að keyra, allt að 30; ef þetta er óbreytt eru 15 notuð. |
| `guidance_scale` |  | number | no | `1` | 1 – 20 | Stilltu classifier-free guidance með þessum kvarða; sjálfgefin kvörðun hans miðar að bæði háum gæðum og hraðri efnisgerð. |
| `generate_audio` |  | boolean | no | `true` |  | Kveikja fyrir hljóðrás MP4-skrárinnar sem skilað er: óvirk stilling skilar myndbandsskrá án hljóðs, en virk stilling tekur hljóð með. |
| `negative_prompt` |  | string | no | `color distortion, overexposure, static, blurry details, subtitles, style, artwork, painting, frame, still, dim overall tone, worst quality, low quality, JPEG compression artifacts, ugly, mutilated, extra fingers, poorly drawn hands, poorly drawn face, deformed, disfigured, malformed limbs, fused fingers, motionless frame, cluttered background, three legs, crowded background, walking backwards` |  | Neikvæð kvaðning sem tilgreinir hverju efnisgerðin á að forðast. |
| `enable_prompt_expansion` |  | boolean | no | `false` |  | Gervigreindarbundin auðgun efnisgerðarkvaðningarinnar, sjálfgefið óvirk svo orðalag þitt berist óbreytt áfram. Úttakið sýnir kvaðninguna sem raunverulega var notuð og varðveitir alltaf `3DREAL`; þegar stækkun er virkjuð getur gervigreindarlíkan útfært lýsinguna áður en efnisgerð hefst. |
| `seed` |  | integer \| null | no |  |  | Sáðgildi sem gerir efnisgerð endurtekningarhæfa. Ef það er stillt á None er sáðgildi valið af handahófi. |
| `enable_safety_checker` |  | boolean | no | `true` |  | Stýrir því hvort öryggisathugun sé virk. |
| `video_quality` |  | enum (string) | no | `high` | `low`, `medium`, `high`, `maximum` | Gæðaforstilling notuð á úttaksvídeóið. |
| `video_write_mode` |  | enum (string) | no | `balanced` | `fast`, `balanced`, `small` | Skrifhamur myndbandsins sem verður til. |

File parameters (`video`, `image`) take a public `https://` URL, a `data:` URI up to 10 MB, or the `file_url` of an upload from `POST /files`.

## Example input

Required parameters only:

```json
{
  "video": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
}
```

A fuller example:

```json
{
  "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
}
```

## Run it

Set `DOITONG_API_KEY` to a key from https://doitong.com/developers/dashboard#keys. `?wait=20` returns the finished request in the same call when it is ready within 20 seconds; otherwise poll `GET /requests/{id}` (it also accepts `?wait=`), or pass `webhook_url`.

### curl

```bash
# Run the model; wait up to 20 s for the finished result in the same call
curl -X POST "https://api.doitong.com/v1/run/ltx-2.3-quality/render-to-real?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
  }'

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

### JavaScript

```javascript
const API = "https://api.doitong.com/v1";
const headers = {
  "Authorization": "Bearer " + process.env.DOITONG_API_KEY,
  "Content-Type": "application/json",
};

// Run the model; wait up to 20 s for the finished result in the same call
let res = await fetch(API + "/run/ltx-2.3-quality/render-to-real?wait=20", {
  method: "POST",
  headers,
  body: JSON.stringify({
    "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
  }),
});
let request = await res.json();
if (!res.ok) throw new Error(request.error.code + ": " + request.error.message);

// Not finished yet: long-poll until it is
while (request.status === "queued" || request.status === "running") {
  res = await fetch(API + "/requests/" + request.id + "?wait=20", { headers });
  request = await res.json();
}
if (request.status !== "succeeded") throw new Error(JSON.stringify(request.error));
console.log(request.outputs.map((o) => o.url), request.cost.credits + " API credits ($" + request.cost.usd + ")");
```

### Python

```python
import os
import requests

API = "https://api.doitong.com/v1"
headers = {"Authorization": "Bearer " + os.environ["DOITONG_API_KEY"]}

payload = {
    "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4",
}

# Run the model; wait up to 20 s for the finished result in the same call
r = requests.post(API + "/run/ltx-2.3-quality/render-to-real", params={"wait": 20}, json=payload, headers=headers)
request = r.json()
if not r.ok:
    raise RuntimeError(request["error"]["code"] + ": " + request["error"]["message"])

# Not finished yet: long-poll until it is
while request["status"] in ("queued", "running"):
    request = requests.get(API + "/requests/" + request["id"], params={"wait": 20}, headers=headers).json()
if request["status"] != "succeeded":
    raise RuntimeError(request["error"])
print([o["url"] for o in request["outputs"]], request["cost"]["credits"], "API credits", "$" + request["cost"]["usd"])
```

### MCP

The MCP server at `https://api.doitong.com/v1/mcp` exposes the tools `search_models`, `get_model`, `quote`, `run`, `get_request`, `cancel_request`, `list_requests`, `create_upload` and `get_account`. A `run` call for this model:

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "run",
    "arguments": {
      "model_id": "ltx-2.3-quality/render-to-real",
      "input": {
        "video_url": "https://content.doitong.com/video/showcase/v3/gen_fox_cartoon.mp4"
      },
      "wait_seconds": 20
    }
  }
}
```

## Response

Every call returns a request object. `status` is one of `queued`, `running`, `succeeded`, `failed`, `canceled`. `outputs` lists the generated files with URLs on our storage (kept forever, or 7 days with `?storage=temporary`; `storage` says which); `output` is the model's own result object with the same URLs.

```json
{
  "id": "req_8k2m4q7x1z9c3v5b6n0p2r4t",
  "object": "request",
  "model": "ltx-2.3-quality/render-to-real",
  "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": 270,
    "usd": "0.27",
    "charged": 270,
    "refunded": 0
  },
  "input": {
    "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
    },
    "seed": 42,
    "prompt": "string"
  },
  "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://api.doitong.com/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t",
    "cancel": "https://api.doitong.com/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t/cancel"
  }
}
```

### Output fields (`output`)

| Field | Type | Description |
|---|---|---|
| `video` | object {url, content_type, file_name, file_size} | Myndband sem líkanið býr til. |
| `seed` | integer | Raunverulegt fræ sem notað er við efnisgerð. |
| `prompt` | string | Efnisgerðarkvaðning, þar á meðal öll útvíkkun sem er beitt áður en hún er notuð. |

## Related models

- [Ltx 2.3 Quality · Text to Video](https://doitong.com/developers/models/ltx-2.3-quality/text-to-video.md) (`ltx-2.3-quality/text-to-video`): $0.00241 / megapixel of output video
- [Ltx 2.3 Quality · Text to Video · LoRA](https://doitong.com/developers/models/ltx-2.3-quality/text-to-video/lora.md) (`ltx-2.3-quality/text-to-video/lora`): $0.00271 / megapixel of output video
- [Ltx 2.3 Quality · Image to Video](https://doitong.com/developers/models/ltx-2.3-quality/image-to-video.md) (`ltx-2.3-quality/image-to-video`): $0.00241 / megapixel of output video
- [Ltx 2.3 Quality · Image to Video · LoRA](https://doitong.com/developers/models/ltx-2.3-quality/image-to-video/lora.md) (`ltx-2.3-quality/image-to-video/lora`): $0.00271 / megapixel of output video
- [Ltx 2.3 Quality · Ingredient](https://doitong.com/developers/models/ltx-2.3-quality/ingredient.md) (`ltx-2.3-quality/ingredient`): $0.00241 / megapixel of output video
- [Ltx 2.3 Quality · Clean Plate](https://doitong.com/developers/models/ltx-2.3-quality/clean-plate.md) (`ltx-2.3-quality/clean-plate`): $0.00241 / megapixel of output video
- [Ltx 2.3 Quality · Colorization](https://doitong.com/developers/models/ltx-2.3-quality/colorization.md) (`ltx-2.3-quality/colorization`): $0.00241 / megapixel of output video
- [Ltx 2.3 Quality · Cross Eyed](https://doitong.com/developers/models/ltx-2.3-quality/cross-eyed.md) (`ltx-2.3-quality/cross-eyed`): $0.00241 / megapixel of output video

## Links

- HTML page: https://doitong.com/developers/models/ltx-2.3-quality/render-to-real
- All models and guides for AI agents: https://doitong.com/developers/llms.txt
- OpenAPI 3.1 with this model's typed request body: https://doitong.com/developers/openapi.json?model=ltx-2.3-quality/render-to-real
- Errors: https://doitong.com/developers/docs/errors
- Model details as JSON: https://api.doitong.com/v1/models/ltx-2.3-quality/render-to-real