# Ltx 2.3 Quality · Render to Real API

> Pretvori 3D-, CG- ali igralno upodobljene posnetke v fotorealističen videoposnetek z izbirno intenzivnostjo

Pretvori 3D-upodobitev, podano kot `video_url`, v bolj realističen videz. `intensity` je lahko light, strong ali strong-v2, od nežne do intenzivne. Neobvezni `image_url` določi fotorealistični prvi kader, `enable_detail_refine` pa doda drugi korak ostrenja z `detail_refine_strength` od 0.3 do 0.95. Poziv ohrani sprožilec `3DREAL`, izhod pa je 480p ali 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/sl/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, ki kaže na video, izrisan v 3D, CG-ju ali igri, za fotorealistično pretvorbo. |
| `image_url` | `image` | string (image URL) \| null | no |  |  | Izbirna sidrna slika za sličico 0, ki določi njen fotorealistični videz. Brez nje rezultat usmerja samo izris; če je navedena, slika postane prva sličica, skladno z učenjem adapterja za pretvorbo slike v video. |
| `intensity` |  | enum (string) | no | `light` | `light`, `strong`, `strong-v2` | Raven fotorealistične pretvorbe, pri čemer `strong-v2` izbere najnovejši izboljšani adapter za boljšo skladnost med prizori, zvokom, govorečimi liki in splošno kakovostjo. Pri drugih možnostih izberite `light`, da ohranite več videza in gibanja izvornega izrisa, ali `strong` za agresivnejše spremembe v smeri fotorealizma. |
| `enable_detail_refine` |  | boolean | no | `false` |  | Omogoči dodatno stopnjo izboljšave za povečanje ostrine in ločljivosti; privzeto je onemogočena. Po osnovnem generiranju prostorski povečevalnik poveča latentni video za 2x, nato pa ga kratek prehod izboljševalnika obdela z destiliranim modelom. |
| `detail_refine_strength` |  | number | no | `0.75` | 0.3 – 0.95 | Moč odstranjevanja šuma izboljševalnika, privzeto 0.75, ki velja samo, ko je omogočen `enable_detail_refine`. Za nežnejše spremembe, ki ohranijo osnovni rezultat, uporabite nižjo nastavitev; njeno povečanje obsežneje znova generira podrobnosti, vendar lahko povzroči večje odmike. |
| `prompt` |  | string | no | `3DREAL.` |  | Besedilni poziv za želeni fotorealistični rezultat, zapisan za vnaprej izpolnjenim sprožilcem za aktivacijo adapterja `3DREAL`. Niti brisanje poziva niti omogočanje razširitve poziva tega sprožilca ne odstrani; vedno se ohrani. |
| `resolution` |  | enum (string) | no | `720p` | `480p`, `720p` | Izberite ločljivost krajše stranice izhoda ob ohranitvi razmerja stranic vira: 480p daje mehkejše rezultate za posnetke do približno 15 sekund, 720p pa ostrejše rezultate do približno 6 sekund. Za daljše posnetke izberite 480p, ker kontrolna pot IC-LoRA omejuje zmnožek ločljivosti in števila sličic; zahteve, ki presežejo ta proračun, so zavrnjene z jasno napako. Trajanje izhoda izračunajte kot `num_frames` / `frames_per_second`. |
| `num_frames` |  | integer | no | `121` | 9 – 481 | Število izhodnih sličic, omejeno s proračunom IC-LoRA za zmnožek ločljivosti in sličic: približno 6 sekund pri 720p ali 15 sekund pri 480p. Prekoračitev proračuna vrne 422; zmanjšajte `num_frames` ali izberite 480p. Trajanje posnetka v sekundah je enako `num_frames` / `frames_per_second`. |
| `frames_per_second` |  | number | no | `24` | 1 – 60 | Izhodna hitrost sličic videa, merjena v sličicah na sekundo. |
| `num_inference_steps` |  | integer | no | `15` | 8 – 30 | Nastavite število korakov sklepanja, največ 30; če to pustite nespremenjeno, se uporabi 15. |
| `guidance_scale` |  | number | no | `1` | 1 – 20 | S to lestvico prilagodite usmerjanje brez klasifikatorja; privzeta nastavitev je uglašena za visoko kakovost in hitro generiranje. |
| `generate_audio` |  | boolean | no | `true` |  | Preklop zvočnega posnetka za vrnjeni MP4: izklop ustvari datoteko samo z videom, vklop pa vključi zvok. |
| `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` |  | Negativni poziv, ki določa, čemu naj se generiranje izogne. |
| `enable_prompt_expansion` |  | boolean | no | `false` |  | Obogatitev poziva za generiranje z umetno inteligenco, privzeto onemogočena, zato se vaše besedilo posreduje nespremenjeno. Izhod poroča o dejansko uporabljenem pozivu in vedno ohrani `3DREAL`; z omogočanjem razširitve lahko model AI pred generiranjem razširi opis. |
| `seed` |  | integer \| null | no |  |  | Seme, ki omogoča ponovljivo generiranje. Če ga nastavite na None, se seme izbere naključno. |
| `enable_safety_checker` |  | boolean | no | `true` |  | Določa, ali je preverjanje varnosti omogočeno. |
| `video_quality` |  | enum (string) | no | `high` | `low`, `medium`, `high`, `maximum` | Prednastavitev kakovosti, uporabljena za izhodni video. |
| `video_write_mode` |  | enum (string) | no | `balanced` | `fast`, `balanced`, `small` | Način zapisovanja nastalega videa. |

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} | Video, ki ga ustvari model. |
| `seed` | integer | Dejansko seme, uporabljeno med generiranjem. |
| `prompt` | string | Poziv za generiranje, vključno z morebitno razširitvijo, uporabljeno pred uporabo. |

## 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