# Imagen 4 Ultra

> Google’s highest quality image generation model


## Overview

- **Endpoint**: `https://fal.run/fal-ai/imagen4/preview/ultra`
- **Model ID**: `fal-ai/imagen4/preview/ultra`
- **Category**: text-to-image
- **Kind**: inference


## Pricing

- **Price**: $0.06 per images

For more details, see [fal.ai pricing](https://fal.ai/pricing).

## API Information

This model can be used via our HTTP API or more conveniently via our client libraries.
See the input and output schema below, as well as the usage examples.


### Input Schema

The API accepts the following input parameters:


- **`prompt`** (`string`, _required_):
  The text prompt to generate an image from.
  - Examples: "This four-panel comic strip uses a charming, deliberately pixelated art style reminiscent of classic 8-bit video games, featuring simple shapes and a limited, bright color palette dominated by greens, blues, browns, and the dinosaur's iconic grey/black. The setting is a stylized pixel beach. Panel one shows the familiar Google Chrome T-Rex dinosaur, complete with its characteristic pixelated form, wearing tiny pixel sunglasses and lounging on a pixelated beach towel under a blocky yellow sun. Pixelated palm trees sway gently in the background against a blue pixel sky. A caption box with pixelated font reads, \"Even error messages need a vacation.\" Panel two is a close-up of the T-Rex attempting to build a pixel sandcastle. It awkwardly pats a mound of brown pixels with its tiny pixel arms, looking focused. Small pixelated shells dot the sand around it. Panel three depicts the T-Rex joyfully hopping over a series of pixelated cacti planted near the beach, mimicking its game obstacle avoidance. Small \"Boing! Boing!\" sound effect text appears in a blocky font above each jump. A pixelated crab watches from the side, waving its pixel claw. The final panel shows the T-Rex floating peacefully on its back in the blocky blue pixel water, sunglasses still on, with a contented expression. A small thought bubble above it contains pixelated \"Zzz...\" indicating relaxation."

- **`num_images`** (`integer`, _optional_):
  The number of images to generate. Default value: `1`
  - Default: `1`
  - Range: `1` to `4`

- **`seed`** (`integer`, _optional_):
  The seed for the random number generator.

- **`aspect_ratio`** (`AspectRatioEnum`, _optional_):
  The aspect ratio of the generated image. Default value: `"1:1"`
  - Default: `"1:1"`
  - Options: `"1:1"`, `"16:9"`, `"9:16"`, `"4:3"`, `"3:4"`

- **`output_format`** (`OutputFormatEnum`, _optional_):
  The format of the generated image. Default value: `"png"`
  - Default: `"png"`
  - Options: `"jpeg"`, `"png"`, `"webp"`

- **`safety_tolerance`** (`SafetyToleranceEnum`, _optional_):
  The safety tolerance level for content moderation. 1 is the most strict (blocks most content), 6 is the least strict. Default value: `"4"`
  - Default: `"4"`
  - Options: `"1"`, `"2"`, `"3"`, `"4"`, `"5"`, `"6"`

- **`sync_mode`** (`boolean`, _optional_):
  If `True`, the media will be returned as a data URI and the output data won't be available in the request history.
  - Default: `false`

- **`resolution`** (`ResolutionEnum`, _optional_):
  The resolution of the generated image. Default value: `"1K"`
  - Default: `"1K"`
  - Options: `"1K"`, `"2K"`



**Required Parameters Example**:

```json
{
  "prompt": "This four-panel comic strip uses a charming, deliberately pixelated art style reminiscent of classic 8-bit video games, featuring simple shapes and a limited, bright color palette dominated by greens, blues, browns, and the dinosaur's iconic grey/black. The setting is a stylized pixel beach. Panel one shows the familiar Google Chrome T-Rex dinosaur, complete with its characteristic pixelated form, wearing tiny pixel sunglasses and lounging on a pixelated beach towel under a blocky yellow sun. Pixelated palm trees sway gently in the background against a blue pixel sky. A caption box with pixelated font reads, \"Even error messages need a vacation.\" Panel two is a close-up of the T-Rex attempting to build a pixel sandcastle. It awkwardly pats a mound of brown pixels with its tiny pixel arms, looking focused. Small pixelated shells dot the sand around it. Panel three depicts the T-Rex joyfully hopping over a series of pixelated cacti planted near the beach, mimicking its game obstacle avoidance. Small \"Boing! Boing!\" sound effect text appears in a blocky font above each jump. A pixelated crab watches from the side, waving its pixel claw. The final panel shows the T-Rex floating peacefully on its back in the blocky blue pixel water, sunglasses still on, with a contented expression. A small thought bubble above it contains pixelated \"Zzz...\" indicating relaxation."
}
```

**Full Example**:

```json
{
  "prompt": "This four-panel comic strip uses a charming, deliberately pixelated art style reminiscent of classic 8-bit video games, featuring simple shapes and a limited, bright color palette dominated by greens, blues, browns, and the dinosaur's iconic grey/black. The setting is a stylized pixel beach. Panel one shows the familiar Google Chrome T-Rex dinosaur, complete with its characteristic pixelated form, wearing tiny pixel sunglasses and lounging on a pixelated beach towel under a blocky yellow sun. Pixelated palm trees sway gently in the background against a blue pixel sky. A caption box with pixelated font reads, \"Even error messages need a vacation.\" Panel two is a close-up of the T-Rex attempting to build a pixel sandcastle. It awkwardly pats a mound of brown pixels with its tiny pixel arms, looking focused. Small pixelated shells dot the sand around it. Panel three depicts the T-Rex joyfully hopping over a series of pixelated cacti planted near the beach, mimicking its game obstacle avoidance. Small \"Boing! Boing!\" sound effect text appears in a blocky font above each jump. A pixelated crab watches from the side, waving its pixel claw. The final panel shows the T-Rex floating peacefully on its back in the blocky blue pixel water, sunglasses still on, with a contented expression. A small thought bubble above it contains pixelated \"Zzz...\" indicating relaxation.",
  "num_images": 1,
  "aspect_ratio": "1:1",
  "output_format": "png",
  "safety_tolerance": "4",
  "resolution": "1K"
}
```


### Output Schema

The API returns the following output format:

- **`images`** (`list<ImageFile>`, _required_):
  The generated images.
  - Array of ImageFile
  - Examples: [{"url":"https://v3.fal.media/files/panda/uzopSU5Me5PUENW-IXMXD_output.png","content_type":"image/png","file_name":"uzopSU5Me5PUENW-IXMXD_output.png"}]

- **`description`** (`string`, _required_):
  The description of the generated images.



**Example Response**:

```json
{
  "images": [
    {
      "url": "https://v3.fal.media/files/panda/uzopSU5Me5PUENW-IXMXD_output.png",
      "content_type": "image/png",
      "file_name": "uzopSU5Me5PUENW-IXMXD_output.png"
    }
  ],
  "description": ""
}
```


## Usage Examples

### cURL

```bash
curl --request POST \
  --url https://fal.run/fal-ai/imagen4/preview/ultra \
  --header "Authorization: Key $FAL_KEY" \
  --header "Content-Type: application/json" \
  --data '{
     "prompt": "This four-panel comic strip uses a charming, deliberately pixelated art style reminiscent of classic 8-bit video games, featuring simple shapes and a limited, bright color palette dominated by greens, blues, browns, and the dinosaur's iconic grey/black. The setting is a stylized pixel beach. Panel one shows the familiar Google Chrome T-Rex dinosaur, complete with its characteristic pixelated form, wearing tiny pixel sunglasses and lounging on a pixelated beach towel under a blocky yellow sun. Pixelated palm trees sway gently in the background against a blue pixel sky. A caption box with pixelated font reads, \"Even error messages need a vacation.\" Panel two is a close-up of the T-Rex attempting to build a pixel sandcastle. It awkwardly pats a mound of brown pixels with its tiny pixel arms, looking focused. Small pixelated shells dot the sand around it. Panel three depicts the T-Rex joyfully hopping over a series of pixelated cacti planted near the beach, mimicking its game obstacle avoidance. Small \"Boing! Boing!\" sound effect text appears in a blocky font above each jump. A pixelated crab watches from the side, waving its pixel claw. The final panel shows the T-Rex floating peacefully on its back in the blocky blue pixel water, sunglasses still on, with a contented expression. A small thought bubble above it contains pixelated \"Zzz...\" indicating relaxation."
   }'
```

### Python

Ensure you have the Python client installed:

```bash
pip install fal-client
```

Then use the API client to make requests:

```python
import fal_client

def on_queue_update(update):
    if isinstance(update, fal_client.InProgress):
        for log in update.logs:
           print(log["message"])

result = fal_client.subscribe(
    "fal-ai/imagen4/preview/ultra",
    arguments={
        "prompt": "This four-panel comic strip uses a charming, deliberately pixelated art style reminiscent of classic 8-bit video games, featuring simple shapes and a limited, bright color palette dominated by greens, blues, browns, and the dinosaur's iconic grey/black. The setting is a stylized pixel beach. Panel one shows the familiar Google Chrome T-Rex dinosaur, complete with its characteristic pixelated form, wearing tiny pixel sunglasses and lounging on a pixelated beach towel under a blocky yellow sun. Pixelated palm trees sway gently in the background against a blue pixel sky. A caption box with pixelated font reads, \"Even error messages need a vacation.\" Panel two is a close-up of the T-Rex attempting to build a pixel sandcastle. It awkwardly pats a mound of brown pixels with its tiny pixel arms, looking focused. Small pixelated shells dot the sand around it. Panel three depicts the T-Rex joyfully hopping over a series of pixelated cacti planted near the beach, mimicking its game obstacle avoidance. Small \"Boing! Boing!\" sound effect text appears in a blocky font above each jump. A pixelated crab watches from the side, waving its pixel claw. The final panel shows the T-Rex floating peacefully on its back in the blocky blue pixel water, sunglasses still on, with a contented expression. A small thought bubble above it contains pixelated \"Zzz...\" indicating relaxation."
    },
    with_logs=True,
    on_queue_update=on_queue_update,
)
print(result)
```

### JavaScript

Ensure you have the JavaScript client installed:

```bash
npm install --save @fal-ai/client
```

Then use the API client to make requests:

```javascript
import { fal } from "@fal-ai/client";

const result = await fal.subscribe("fal-ai/imagen4/preview/ultra", {
  input: {
    prompt: "This four-panel comic strip uses a charming, deliberately pixelated art style reminiscent of classic 8-bit video games, featuring simple shapes and a limited, bright color palette dominated by greens, blues, browns, and the dinosaur's iconic grey/black. The setting is a stylized pixel beach. Panel one shows the familiar Google Chrome T-Rex dinosaur, complete with its characteristic pixelated form, wearing tiny pixel sunglasses and lounging on a pixelated beach towel under a blocky yellow sun. Pixelated palm trees sway gently in the background against a blue pixel sky. A caption box with pixelated font reads, \"Even error messages need a vacation.\" Panel two is a close-up of the T-Rex attempting to build a pixel sandcastle. It awkwardly pats a mound of brown pixels with its tiny pixel arms, looking focused. Small pixelated shells dot the sand around it. Panel three depicts the T-Rex joyfully hopping over a series of pixelated cacti planted near the beach, mimicking its game obstacle avoidance. Small \"Boing! Boing!\" sound effect text appears in a blocky font above each jump. A pixelated crab watches from the side, waving its pixel claw. The final panel shows the T-Rex floating peacefully on its back in the blocky blue pixel water, sunglasses still on, with a contented expression. A small thought bubble above it contains pixelated \"Zzz...\" indicating relaxation."
  },
  logs: true,
  onQueueUpdate: (update) => {
    if (update.status === "IN_PROGRESS") {
      update.logs.map((log) => log.message).forEach(console.log);
    }
  },
});
console.log(result.data);
console.log(result.requestId);
```


## Additional Resources

### Documentation

- [Model Playground](https://fal.ai/models/fal-ai/imagen4/preview/ultra)
- [API Documentation](https://fal.ai/models/fal-ai/imagen4/preview/ultra/api)
- [OpenAPI Schema](https://fal.ai/api/openapi/queue/openapi.json?endpoint_id=fal-ai/imagen4/preview/ultra)

### fal.ai Platform

- [Platform Documentation](https://docs.fal.ai)
- [Python Client](https://docs.fal.ai/clients/python)
- [JavaScript Client](https://docs.fal.ai/clients/javascript)