Name: Leonardo.Ai Lucid Origin Text-to-Image Generator API
Brand: magicapi
SKU: api-magicapi-artistic-high-quality-image-generator-leonardoai-lucid-origin
Availability: InStock
Author: API Market

Shashank Agarwal

# 🎨 Text-to-Image Generator API (Leonardo.Ai Lucid Origin)

## Overview
Lucid Origin is a text-to-image model from Leonardo.Ai. Its developer describes it as producing artistic, high-quality visuals with improved prompt adherence, diversity and definition.

Send a text `prompt`. Choose an `aspect_ratio`, a `style` preset, a `contrast` level and a `generation_mode` (`standard` or `ultra`), and set `num_images` from 1 to 8. Each request returns a list of image URLs.

## Features
- **Up to 8 images per request**: `num_images` from 1 (default) to 8.
- **Two generation modes**: `standard` (default) and `ultra`.
- **21 style presets**: for example `cinematic`, `fashion`, `food`, `macro`, `monochrome`, `portrait`, `stock_photo` or `none` (default).
- **Contrast**: `low`, `medium` (default) or `high`.
- **13 aspect ratios**: from `3:1` to `1:3`, default `16:9`.
- **Prompt enhancement**: `prompt_enhance` (default `true`) enhances the prompt; set it to `false` to use your prompt as written.

## Use Cases
1. **Portraits and product shots**: studio-style images with the `portrait`, `stock_photo` or `food` presets.
2. **Marketing visuals**: images in the aspect ratio of each placement, from banners to stories.
3. **Concept art**: try several variations of a prompt in one request with `num_images`.
4. **Mood boards**: compare presets such as `cinematic`, `moody` and `retro` for the same subject.

## Visual Examples
### Example Input
Prompt: "a portrait-style photograph featuring a fox with a slender build and delicate features sitting against a navy blue background that is smooth and untextured. The fox has soft, fluffy orange fur with a lighter patch on its chest and around its nose. Its ears are large and pointed, with a slight perkiness. The eyes are a bright, piercing yellow with a sharp, intelligent glint. The lighting is soft and warm, highlighting the texture of the fur"

One image in `standard` mode, `1:1`, style `none`, contrast `medium`, prompt enhancement on.

```json
{
  "style": "none",
  "prompt": "a portrait-style photograph featuring a fox with a slender build and delicate features sitting against a navy blue background that is smooth and untextured. The fox has soft, fluffy orange fur with a lighter patch on its chest and around its nose. Its ears are large and pointed, with a slight perkiness. The eyes are a bright, piercing yellow with a sharp, intelligent glint. The lighting is soft and warm, highlighting the texture of the fur",
  "contrast": "medium",
  "num_images": 1,
  "aspect_ratio": "1:1",
  "prompt_enhance": true,
  "generation_mode": "standard"
}
```

### Example Output
![Lucid Origin output: a portrait of an orange fox with yellow eyes against a smooth navy blue background](https://blog.api.market/wp-content/uploads/2026/11/lucid-origin-output-a4qkt682-api-market.jpg)

## Input Parameters
| Field | Type | Required | Default | Allowed values | Description |
| --- | --- | --- | --- | --- | --- |
| `prompt` | string | Yes |  |  | Text prompt for generation |
| `aspect_ratio` | string | No | `16:9` | `1:1`, `16:9`, `9:16`, `3:2`, `2:3`, `4:5`, `5:4`, `3:4`, `4:3`, `2:1`, `1:2`, `3:1`, `1:3` | Aspect ratio of the output image |
| `generation_mode` | string | No | `standard` | `standard`, `ultra` | Generation mode |
| `contrast` | string | No | `medium` | `low`, `medium`, `high` | Contrast level |
| `prompt_enhance` | boolean | No | `true` |  | Whether to enhance the prompt |
| `num_images` | integer | No | `1` | 1 to 8 | Number of images to generate |
| `style` | string | No | `none` | `bokeh`, `cinematic`, `cinematic_close_up`, `creative`, `dynamic`, `fashion`, `film`, `food`, `hdr`, `long_exposure`, `macro`, `minimalist`, `monochrome`, `moody`, `neutral`, `none`, `portrait`, `retro`, `stock_photo`, `unprocessed`, `vibrant` | Style to use for the output image |

## Pricing
- **Pay As You Go (PAYG) pricing**: you only pay for what you use.
- **Price**: $0.02 per API unit.
- **1 API unit = 1 output image times the factor of the generation mode, rounded up to a whole unit per request.** A request returns `num_images` images (1 to 8, default 1).
- **Price per image by mode** (unit price x factor):

| `generation_mode` | Price per image |
| --- | --- |
| `standard` (default) | $0.02 (x1) |
| `ultra` | $0.09162 (x4.581) |

- `standard` costs $0.02 per image, so 8 images cost $0.16. In `ultra` mode the request rounds up: 1 image is 4.581, rounded up to 5 units ($0.10); 8 images are 36.648, rounded up to 37 units ($0.74).
- `aspect_ratio`, `style`, `contrast` and `prompt_enhance` do not change the price.
- **Example cost**: the example generated 1 image in `standard` mode: 1 unit ($0.02).
- **Failed or cancelled predictions are not billed.**
- **GET requests to check prediction status** are free and don't count toward API unit usage.
- **No monthly subscription fee.**

## API Documentation

### Base URL
All API requests go to: `https://prod.api.market/api/v1/magicapi/artistic-high-quality-image-generator-leonardoai-lucid-origin`

### Authentication
Send your api.market API key in the `x-api-market-key` header:
```
x-api-market-key: YOUR_API_MARKET_KEY
```

### Asynchronous Processing
**IMPORTANT**: This API is asynchronous. The flow is:
1. Send a POST request to `/predictions`. A successful request returns **201 Created** with a prediction `id` and a `status` of `starting` or `processing`.
2. Poll GET `/predictions/{id}` with that ID.
3. Keep polling while `status` is `starting` or `processing`.
4. Stop when `status` is `succeeded` (read `output`), `failed` or `canceled` (read `error`).

A polling interval of 1 second and an overall timeout of 600 seconds (10 minutes) work well.

### Endpoints

#### Create a Prediction
```bash
curl -X POST "https://prod.api.market/api/v1/magicapi/artistic-high-quality-image-generator-leonardoai-lucid-origin/predictions" \
  -H "Content-Type: application/json" \
  -H "x-api-market-key: YOUR_API_MARKET_KEY" \
  -d '{
    "version": "leonardoai/lucid-origin",
    "input": {
      "style": "none",
      "prompt": "a portrait-style photograph featuring a fox with a slender build and delicate features sitting against a navy blue background that is smooth and untextured. The fox has soft, fluffy orange fur with a lighter patch on its chest and around its nose. Its ears are large and pointed, with a slight perkiness. The eyes are a bright, piercing yellow with a sharp, intelligent glint. The lighting is soft and warm, highlighting the texture of the fur",
      "contrast": "medium",
      "num_images": 1,
      "aspect_ratio": "1:1",
      "prompt_enhance": true,
      "generation_mode": "standard"
    }
  }'
```

Response (201 Created):
```json
{
  "id": "a4qkt682xdrmt0d1mvmvv7td30",
  "version": "leonardoai/lucid-origin",
  "status": "starting",
  "created_at": "2026-11-04T14:14:10.923Z"
}
```

#### Check Prediction Status
```bash
curl -X GET "https://prod.api.market/api/v1/magicapi/artistic-high-quality-image-generator-leonardoai-lucid-origin/predictions/{id}" \
  -H "x-api-market-key: YOUR_API_MARKET_KEY"
```

Response when the prediction has finished (200 OK):
```json
{
  "id": "a4qkt682xdrmt0d1mvmvv7td30",
  "status": "succeeded",
  "output": [
    "https://blog.api.market/wp-content/uploads/2026/11/lucid-origin-output-a4qkt682-api-market.jpg"
  ],
  "error": null,
  "created_at": "2026-11-04T14:14:10.923Z",
  "started_at": "2026-11-04T14:14:10.940Z",
  "completed_at": "2026-11-04T14:14:36.294Z"
}
```

`output` is a list of image URLs, one for each image requested with `num_images`.

### Status Codes
- **201 Created**: prediction created (POST `/predictions`). This is the normal success response.
- **200 OK**: prediction details returned (GET `/predictions/{id}`).
- **400 Bad Request**: invalid input, for example a missing `prompt`, a `num_images` outside 1 to 8, or a `style` that is not in the list.
- **401 Unauthorized**: missing or invalid API key.
- **404 Not Found**: no prediction with that ID.
- **429 Too Many Requests**: rate limit exceeded.
- **500 Internal Server Error** or **503 Service Unavailable**: temporary server problem; retry later.

## Rate Limits
Requests are rate limited to keep usage fair. If you receive a 429 response, wait and retry with exponential backoff.

## Error Handling
- Check the HTTP status code of every request and read the response body for the error message.
- A prediction can also end with `status` set to `failed`; the `error` field then explains why. Failed predictions are not billed.
- Retry 429, 500 and 503 responses with exponential backoff. Fix the input before retrying a 400.

## Implementation Guide
### Example Code

#### JavaScript
```javascript
const apiKey = "YOUR_API_MARKET_KEY";
const baseUrl = "https://prod.api.market/api/v1/magicapi/artistic-high-quality-image-generator-leonardoai-lucid-origin";

async function createAndWaitForPrediction(input) {
  const response = await fetch(`${baseUrl}/predictions`, {
    method: "POST",
    headers: {
      "Content-Type": "application/json",
      "x-api-market-key": apiKey
    },
    body: JSON.stringify({ version: "leonardoai/lucid-origin", input })
  });

  if (response.status !== 201) {
    throw new Error(`API error: ${response.status} ${await response.text()}`);
  }

  const prediction = await response.json();
  return pollForResults(prediction.id);
}

const delay = (ms) => new Promise((resolve) => setTimeout(resolve, ms));

async function pollForResults(predictionId) {
  const maxTimeout = 600000;
  const pollInterval = 1000;
  const startTime = Date.now();

  while (Date.now() - startTime < maxTimeout) {
    const response = await fetch(`${baseUrl}/predictions/${predictionId}`, {
      headers: { "x-api-market-key": apiKey }
    });

    if (!response.ok) {
      throw new Error(`API error: ${response.status} ${await response.text()}`);
    }

    const prediction = await response.json();

    if (prediction.status === "succeeded") {
      return prediction.output;
    }

    if (prediction.status === "failed" || prediction.status === "canceled") {
      throw new Error(`Prediction ${prediction.status}: ${prediction.error || "Unknown error"}`);
    }

    await delay(pollInterval);
  }

  throw new Error("Prediction timed out after 10 minutes");
}

createAndWaitForPrediction({
  "style": "none",
  "prompt": "a portrait-style photograph featuring a fox with a slender build and delicate features sitting against a navy blue background that is smooth and untextured. The fox has soft, fluffy orange fur with a lighter patch on its chest and around its nose. Its ears are large and pointed, with a slight perkiness. The eyes are a bright, piercing yellow with a sharp, intelligent glint. The lighting is soft and warm, highlighting the texture of the fur",
  "contrast": "medium",
  "num_images": 1,
  "aspect_ratio": "1:1",
  "prompt_enhance": true,
  "generation_mode": "standard"
}).then((output) => console.log(output));
```

#### Python
```python
import time
import requests

API_KEY = "YOUR_API_MARKET_KEY"
BASE_URL = "https://prod.api.market/api/v1/magicapi/artistic-high-quality-image-generator-leonardoai-lucid-origin"


def create_and_wait_for_prediction(input_data):
    headers = {"Content-Type": "application/json", "x-api-market-key": API_KEY}
    response = requests.post(
        f"{BASE_URL}/predictions",
        headers=headers,
        json={"version": "leonardoai/lucid-origin", "input": input_data},
    )

    if response.status_code != 201:
        raise Exception(f"API error: {response.status_code} {response.text}")

    return poll_for_results(response.json()["id"])


def poll_for_results(prediction_id):
    max_timeout = 600
    poll_interval = 1
    headers = {"x-api-market-key": API_KEY}
    start_time = time.time()

    while time.time() - start_time < max_timeout:
        response = requests.get(f"{BASE_URL}/predictions/{prediction_id}", headers=headers)

        if response.status_code != 200:
            raise Exception(f"API error: {response.status_code} {response.text}")

        prediction = response.json()

        if prediction["status"] == "succeeded":
            return prediction["output"]

        if prediction["status"] in ("failed", "canceled"):
            raise Exception(f"Prediction {prediction['status']}: {prediction.get('error') or 'Unknown error'}")

        time.sleep(poll_interval)

    raise Exception("Prediction timed out after 10 minutes")


print(create_and_wait_for_prediction({
    "style": "none",
    "prompt": "a portrait-style photograph featuring a fox with a slender build and delicate features sitting against a navy blue background that is smooth and untextured. The fox has soft, fluffy orange fur with a lighter patch on its chest and around its nose. Its ears are large and pointed, with a slight perkiness. The eyes are a bright, piercing yellow with a sharp, intelligent glint. The lighting is soft and warm, highlighting the texture of the fur",
    "contrast": "medium",
    "num_images": 1,
    "aspect_ratio": "1:1",
    "prompt_enhance": True,
    "generation_mode": "standard"
}))
```

## FAQ
- **How many images does one request return?**
  - `num_images`, from 1 to 8 (default 1). `output` is a list with one URL per image.
- **What is the difference between `standard` and `ultra`?**
  - They are the model's two generation modes. `ultra` costs 4.581 units per image instead of 1, rounded up per request.
- **Why does my image differ from my exact prompt?**
  - `prompt_enhance` is `true` by default and enhances the prompt before generation. Set it to `false` to use your prompt as written.
- **Can I send a reference image?**
  - No. The model takes only text and settings; there is no image input.
- **What if my prediction fails?**
  - Failed predictions are not billed. Read the `error` field, adjust the input and try again.

## Contact Us
If you have any questions, reach out to us through the chat on the bottom right of the page.


Generate images from text with Leonardo.Ai Lucid Origin: 13 aspect ratios, 21 style presets, standard or ultra mode, up to 8 images per request. From $0.02 per image image, pay as you go.