# Cosmos 3 Super API

> Cynhyrchu testun-i-ddelwedd gydag ehangu anogwr a modd dewisol o gymharu ymgeiswyr yn asiantaidd

Yn creu 1 i 4 delwedd o `prompt` hyd at 4096 nod. Mae ymylon `image_size` wedi'u cyfyngu i 512-1280 px. Mae `enable_agentic_generation` yn cynhyrchu sawl ymgeisydd ac yn mireinio'r anogwr rhwng rowndiau, gyda hyd at 3 iteriad. Mae ganddo hefyd `negative_prompt`, `guidance_scale` hyd at 20, `num_inference_steps` hyd at 50, ac allbwn jpeg neu png.

- Model id: `nvidia/cosmos-3-super/text-to-image`
- Made by: NVIDIA
- Category: Text to Image
- Output: image
- Price per run: from $0.04 / run of output image (cheapest run $0.04 (40 API credits))
- Run: `POST https://api.doitong.ru/v1/run/nvidia/cosmos-3-super/text-to-image`
- Quote: `POST https://api.doitong.ru/v1/quote/nvidia/cosmos-3-super/text-to-image`
- Docs page: https://doitong.com/cy/developers/models/nvidia/cosmos-3-super/text-to-image

## Pricing

Price: **from $0.04 / run of output image** (the lowest tier; the quote prices your exact input). Price per run: 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.

The full example input below costs $0.04 = 40 API credits (1 run × $0.04).

Prices are the upstream price in USD, paid from the API balance in API credits (1000 API credits = 1 USD). `POST https://api.doitong.ru/v1/quote/nvidia/cosmos-3-super/text-to-image` 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 |
|---|---|---|---|---|---|---|
| `prompt` |  | string | yes |  | 1 – 4096 characters | Disgrifiad testun o'r allbwn delwedd dymunol. |
| `negative_prompt` |  | string | no | `` | ≤ 1024 characters | Arweiniad negyddol sy'n nodi lliwiau, gwrthrychau neu arteffactau diangen i'w hosgoi wrth gynhyrchu. |
| `enable_prompt_expansion` |  | boolean | no | `false` |  | Gwella anogiad cyn cynhyrchu drwy OpenRouter, gan gynhyrchu'r gynrychiolaeth JSON strwythuredig ddwys a ddefnyddir i hyfforddi Cosmos3 pan fydd wedi'i alluogi. Os bydd y gwelliant yn methu, mae cynhyrchu delwedd yn parhau gyda'r anogiad heb ei addasu. |
| `enable_agentic_generation` |  | boolean | no | `false` |  | Dolen mireinio anogiad awtomatig sy'n anelu at gydymffurfio'n agosach â'r cais gwreiddiol. Mae pob rownd yn cynhyrchu ymgeiswyr delwedd lluosog ac yn eu cymharu, gyda diwygiadau i'r anogiad rhwng rowndiau. |
| `agentic_max_iterations` |  | integer | no | `2` | 1 – 3 | Terfyn rowndiau mireinio ar gyfer cynhyrchu gyda modd asiantig wedi'i alluogi. |
| `agentic_samples_per_iteration` |  | integer | no | `2` | 1 – 3 | Cyfrif ymgeiswyr delwedd fesul iteriad ar gyfer y ddolen asiantig, gan bennu faint o ddelweddau sy'n cystadlu yn y gwerthusiad cyn i'r gorau symud ymlaen at ailysgrifennu'r anogiad. |
| `agentic_early_stop` |  | boolean | no | `true` |  | Rheolydd atal cynnar sy'n trin cyfatebiaeth gref rhwng delwedd ac anogiad fel digon i orffen heb iteriadau pellach. |
| `image_size` |  | object {width, height} \| enum (string) | no | `square_hd` | `square_hd`, `square`, `portrait_4_3`, `portrait_16_9`, `landscape_4_3`, `landscape_16_9` | Gosodwch ddimensiynau'r ddelwedd allbwn; mae cyfyngu'n cadw pob ymyl rhwng 512 a 1280px, gyda hyd ymylon wedi'u cyfyngu i luosrifau o 16. |
| `num_inference_steps` |  | integer | no | `28` | 1 – 50 | Nifer y camau dad-sŵnio, lle mae cynyddu'r nifer yn cyfnewid prosesu hirach am ansawdd gwell. |
| `guidance_scale` |  | number | no | `4` | 0 – 20 | Cryfder arweiniad heb ddosbarthwr. |
| `num_images` | `num_outputs` | integer | no | `1` | 1 – 4 | Cyfrif delweddau y gofynnir amdano ar gyfer cynhyrchu. |
| `seed` |  | integer \| null | no |  |  | Hedyn ar gyfer cynhyrchu delweddau ailadroddadwy. Mae'r ddelwedd allbwn yn aros yr un fath ar draws rhediadau oni bai bod y hedyn, yr anogiad neu fersiwn y model yn newid. |
| `enable_safety_checker` |  | boolean | no | `true` |  | Switsh cymedroli cynnwys sy'n cwmpasu mewnbwn yr anogiad ac allbwn y ddelwedd. Rhaid i gyfrifon fod wedi'u hawdurdodi i osgoi cymedroli; fel arall, mae gwiriadau'n parhau'n orfodol beth bynnag fo'r gosodiad hwn. Mae unrhyw ddelwedd a ystyrir yn anniogel yn cael ei disodli gan ddelwedd ddu. |
| `output_format` |  | enum (string) | no | `jpeg` | `jpeg`, `png` | Fformat ffeil y ddelwedd sy'n deillio. |

## Example input

Required parameters only:

```json
{
  "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field"
}
```

A fuller example:

```json
{
  "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field"
}
```

## 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.ru/v1/run/nvidia/cosmos-3-super/text-to-image?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"
  }'

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

### JavaScript

```javascript
const API = "https://api.doitong.ru/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/nvidia/cosmos-3-super/text-to-image?wait=20", {
  method: "POST",
  headers,
  body: JSON.stringify({
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field"
  }),
});
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.ru/v1"
headers = {"Authorization": "Bearer " + os.environ["DOITONG_API_KEY"]}

payload = {
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
}

# Run the model; wait up to 20 s for the finished result in the same call
r = requests.post(API + "/run/nvidia/cosmos-3-super/text-to-image", 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.ru/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": "nvidia/cosmos-3-super/text-to-image",
      "input": {
        "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field"
      },
      "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": "nvidia/cosmos-3-super/text-to-image",
  "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": 40,
    "usd": "0.04",
    "charged": 40,
    "refunded": 0
  },
  "input": {
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field"
  },
  "output": {
    "images": [
      {
        "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.jpeg",
        "content_type": "image/jpeg",
        "file_name": "0-output.jpeg",
        "file_size": 1843200,
        "width": 1024,
        "height": 768
      }
    ],
    "seed": 42,
    "has_nsfw_concepts": [
      false
    ]
  },
  "outputs": [
    {
      "type": "image",
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.jpeg",
      "content_type": "image/jpeg",
      "file_size": 1843200,
      "width": 1024,
      "height": 768,
      "stored": true
    }
  ],
  "error": null,
  "metrics": {
    "inference_seconds": 6.8
  },
  "urls": {
    "self": "https://api.doitong.ru/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t",
    "cancel": "https://api.doitong.ru/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t/cancel"
  }
}
```

### Output fields (`output`)

| Field | Type | Description |
|---|---|---|
| `images` | array of object {url, content_type, file_name, file_size, width, height} | Delweddau a gynhyrchir gan y model. |
| `seed` | integer | Gwerth hedyn a gymhwysir wrth gynhyrchu. |
| `has_nsfw_concepts` | array of boolean | Statws baner y gwiriwr diogelwch ar gyfer pob delwedd a gynhyrchir. |

## Related models

- [Cosmos 3 Super Image to Video](https://doitong.com/developers/models/nvidia/cosmos-3-super/image-to-video.md) (`nvidia/cosmos-3-super/image-to-video`): from $0.05 / second of output video
- [FLUX.1 \[dev\]](https://doitong.com/developers/models/flux/dev.md) (`flux/dev`): $0.025 / megapixel
- [FLUX.1 \[schnell\]](https://doitong.com/developers/models/flux/schnell.md) (`flux/schnell`): $0.003 / megapixel
- [FLUX.2 \[dev\]](https://doitong.com/developers/models/flux-2.md) (`flux-2`): $0.012 / megapixel
- [FLUX.2 \[pro\]](https://doitong.com/developers/models/flux-2-pro.md) (`flux-2-pro`): $0.015 / megapixel of output image
- [GPT Image 2.5 Text to Image](https://doitong.com/developers/models/openai/gpt-image-2.5/flare/text-to-image.md) (`openai/gpt-image-2.5/flare/text-to-image`): from $0.008 / image
- [Ideogram V4.5](https://doitong.com/developers/models/ideogram/v4.5.md) (`ideogram/v4.5`): from $0.03 / image
- [Nano Banana 2](https://doitong.com/developers/models/nano-banana-2.md) (`nano-banana-2`): from $0.06 / image

## Links

- HTML page: https://doitong.com/developers/models/nvidia/cosmos-3-super/text-to-image
- 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=nvidia/cosmos-3-super/text-to-image
- Errors: https://doitong.com/developers/docs/errors
- Model details as JSON: https://api.doitong.ru/v1/models/nvidia/cosmos-3-super/text-to-image