---
title: Bria FIBO Lite | Runware Docs
url: https://runware.ai/docs/models/bria-fibo-lite
description: Fast, controllable text-to-image generation model
---
# Bria FIBO Lite

Bria FIBO Lite is a lightweight, efficient text-to-image model designed for rapid image generation with structured prompt control and minimal inference steps. It uses a two-stage distillation approach to deliver high-quality visuals in fewer steps while preserving prompt adherence and visual coherence.

- **ID**: `bria:20@3`
- **Status**: live
- **Creator**: Bria
- **Capabilities**: Text to Image

## Compatibility & Validation

`width` and `height` must be used together.

---

The following dimension combinations are supported:

| Configuration | Dimensions |
| --- | --- |
| `1K (1:1)` | `1024x1024` |
| `1K (2:3)` | `832x1216` |
| `1K (3:2)` | `1216x832` |
| `1K (7:9)` | `896x1152` |
| `1K (9:7)` | `1152x896` |
| `1K (14:17)` | `896x1088` |
| `1K (17:14)` | `1088x896` |
| `1K (4:7)` | `768x1344` |
| `1K (7:4)` | `1344x768` |

## Request Parameters

**API Options**

Platform-level options for task execution and delivery.

### [taskType](https://runware.ai/docs/models/bria-fibo-lite#request-tasktype)

- **Type**: `string`
- **Required**: true
- **Value**: `imageInference`

Identifier for the type of task being performed

### [taskUUID](https://runware.ai/docs/models/bria-fibo-lite#request-taskuuid)

- **Type**: `string`
- **Required**: true
- **Format**: `UUID v4`

UUID v4 identifier for tracking tasks and matching async responses. Must be unique per task.

### [outputType](https://runware.ai/docs/models/bria-fibo-lite#request-outputtype)

- **Type**: `string`
- **Default**: `URL`

Image output type.

**Allowed values**: `URL` `base64Data` `dataURI`

### [outputFormat](https://runware.ai/docs/models/bria-fibo-lite#request-outputformat)

- **Type**: `string`
- **Default**: `JPG`

Specifies the file format of the generated output. The available values depend on the task type and the specific model's capabilities.

- \`JPG\`: Best for photorealistic images with smaller file sizes (no transparency).
- \`PNG\`: Lossless compression, supports high quality and transparency (alpha channel).
- \`WEBP\`: Modern format providing superior compression and transparency support.

> [!NOTE]
> \*\*Transparency\*\*: If you are using features like background removal or LayerDiffuse that require transparency, you must select a format that supports an alpha channel (e.g., \`PNG\`, \`WEBP\`, \`TIFF\`). \`JPG\` does not support transparency.

**Allowed values**: `JPG` `PNG` `WEBP`

### [outputQuality](https://runware.ai/docs/models/bria-fibo-lite#request-outputquality)

- **Type**: `integer`
- **Min**: `20`
- **Max**: `99`
- **Default**: `95`

Compression quality of the output. Higher values preserve quality but increase file size.

### [webhookURL](https://runware.ai/docs/models/bria-fibo-lite#request-webhookurl)

- **Type**: `string`
- **Format**: `URI`

Specifies a webhook URL where JSON responses will be sent via HTTP POST when generation tasks complete. For batch requests with multiple results, each completed item triggers a separate webhook call as it becomes available.

**Learn more** (1 resource):

- [Webhooks](https://runware.ai/docs/platform/webhooks) (platform)

### [deliveryMethod](https://runware.ai/docs/models/bria-fibo-lite#request-deliverymethod)

- **Type**: `string`
- **Default**: `sync`

Determines how the API delivers task results.

**Allowed values**:

- `sync` Returns complete results directly in the API response.
- `async` Returns an immediate acknowledgment with the task UUID. Poll for results using getResponse.

**Learn more** (1 resource):

- [Task Polling](https://runware.ai/docs/platform/task-polling) (platform)

### [uploadEndpoint](https://runware.ai/docs/models/bria-fibo-lite#request-uploadendpoint)

- **Type**: `string`
- **Format**: `URI`

Specifies a URL where the generated content will be automatically uploaded using the HTTP PUT method. The raw binary data of the media file is sent directly as the request body. For secure uploads to cloud storage, use presigned URLs that include temporary authentication credentials.

**Common use cases:**

- **Cloud storage**: Upload directly to S3 buckets, Google Cloud Storage, or Azure Blob Storage using presigned URLs.
- **CDN integration**: Upload to content delivery networks for immediate distribution.

```text
// S3 presigned URL for secure upload
https://your-bucket.s3.amazonaws.com/generated/content.mp4?X-Amz-Signature=abc123&X-Amz-Expires=3600

// Google Cloud Storage presigned URL
https://storage.googleapis.com/your-bucket/content.jpg?X-Goog-Signature=xyz789

// Custom storage endpoint
https://storage.example.com/uploads/generated-image.jpg
```

The content data will be sent as the request body to the specified URL when generation is complete.

### [safety](https://runware.ai/docs/models/bria-fibo-lite#request-safety)

- **Path**: `safety.checkContent`
- **Type**: `object (2 properties)`

Content safety checking configuration for image generation.

#### [checkContent](https://runware.ai/docs/models/bria-fibo-lite#request-safety-checkcontent)

- **Path**: `safety.checkContent`
- **Type**: `boolean`
- **Default**: `false`

Enable or disable content safety checking. When enabled, defaults to `fast` mode.

#### [mode](https://runware.ai/docs/models/bria-fibo-lite#request-safety-mode)

- **Path**: `safety.mode`
- **Type**: `string`
- **Default**: `none`

Safety checking mode for image generation.

**Allowed values**:

- `none` Disables checking.
- `fast` Performs a single check.

### [ttl](https://runware.ai/docs/models/bria-fibo-lite#request-ttl)

- **Type**: `integer`
- **Min**: `60`

Time-to-live (TTL) in seconds for generated content. Only applies when `outputType` is `URL`.

### [includeCost](https://runware.ai/docs/models/bria-fibo-lite#request-includecost)

- **Type**: `boolean`
- **Default**: `false`

Include task cost in the response.

### [numberResults](https://runware.ai/docs/models/bria-fibo-lite#request-numberresults)

- **Type**: `integer`
- **Min**: `1`
- **Max**: `20`
- **Default**: `1`

Number of results to generate. Each result uses a different seed, producing variations of the same parameters.

**Inputs**

Input resources for the task (images, audio, etc). These must be nested inside the \`inputs\` object.

### [image](https://runware.ai/docs/models/bria-fibo-lite#request-inputs-image)

- **Path**: `inputs.image`
- **Type**: `string`

Image input (UUID, URL, Data URI, or Base64).

**Generation Parameters**

Core parameters for controlling the generated content.

### [model](https://runware.ai/docs/models/bria-fibo-lite#request-model)

- **Type**: `string`
- **Required**: true
- **Value**: `bria:20@3`

Identifier of the model to use for generation.

**Learn more** (3 resources):

- [Text To Image: Model Selection The Foundation Of Generation](https://runware.ai/docs/guides/text-to-image#model-selection-the-foundation-of-generation) (guide)
- [Image Inpainting: Model Specialized Inpainting Models](https://runware.ai/docs/guides/image-inpainting#model-specialized-inpainting-models) (guide)
- [Image Outpainting: Other Critical Parameters](https://runware.ai/docs/guides/image-outpainting#other-critical-parameters) (guide)

### [positivePrompt](https://runware.ai/docs/models/bria-fibo-lite#request-positiveprompt)

- **Type**: `string`
- **Required**: true
- **Min**: `2`
- **Max**: `3000`

Text prompt describing elements to include in the generated output.

**Learn more** (2 resources):

- [Text To Image: Prompts Guiding The Generation](https://runware.ai/docs/guides/text-to-image#prompts-guiding-the-generation) (guide)
- [Image Outpainting: Other Critical Parameters](https://runware.ai/docs/guides/image-outpainting#other-critical-parameters) (guide)

### [negativePrompt](https://runware.ai/docs/models/bria-fibo-lite#request-negativeprompt)

- **Type**: `string`
- **Min**: `2`
- **Max**: `3000`

Prompt to guide what to exclude from generation. Ignored when guidance is disabled (CFGScale ≤ 1).

**Learn more** (1 resource):

- [Text To Image: Prompts Guiding The Generation](https://runware.ai/docs/guides/text-to-image#prompts-guiding-the-generation) (guide)

### [width](https://runware.ai/docs/models/bria-fibo-lite#request-width)

- **Type**: `integer`
- **Required**: true
- **Paired with**: height

Width of the generated media in pixels.

**Learn more** (2 resources):

- [Image To Image: Dimensions Changing Aspect Ratio](https://runware.ai/docs/guides/image-to-image#dimensions-changing-aspect-ratio) (guide)
- [Image Outpainting: Dimensions Critical For Outpainting](https://runware.ai/docs/guides/image-outpainting#dimensions-critical-for-outpainting) (guide)

### [height](https://runware.ai/docs/models/bria-fibo-lite#request-height)

- **Type**: `integer`
- **Required**: true
- **Paired with**: width

Height of the generated media in pixels.

**Learn more** (2 resources):

- [Image To Image: Dimensions Changing Aspect Ratio](https://runware.ai/docs/guides/image-to-image#dimensions-changing-aspect-ratio) (guide)
- [Image Outpainting: Dimensions Critical For Outpainting](https://runware.ai/docs/guides/image-outpainting#dimensions-critical-for-outpainting) (guide)

### [seed](https://runware.ai/docs/models/bria-fibo-lite#request-seed)

- **Type**: `integer`
- **Min**: `0`
- **Max**: `9223372036854776000`

Random seed for reproducible generation. When not provided, a random seed is generated in the unsigned 32-bit range.

**Learn more** (1 resource):

- [Text To Image: Seed Controlling Randomness Deterministically](https://runware.ai/docs/guides/text-to-image#seed-controlling-randomness-deterministically) (guide)

### [CFGScale](https://runware.ai/docs/models/bria-fibo-lite#request-cfgscale)

- **Type**: `float`
- **Min**: `0`
- **Step**: `0.01`
- **Default**: `5`

Guidance scale representing how closely the output will resemble the prompt. Higher values produce results more aligned with the prompt.

**Allowed values**: `3` `4` `5`

**Learn more** (1 resource):

- [Text To Image: Cfg Scale Balancing Creativity And Control](https://runware.ai/docs/guides/text-to-image#cfg-scale-balancing-creativity-and-control) (guide)

**Provider Settings**

Parameters specific to this model provider. These must be nested inside the \`providerSettings.bria\` object.

### [ipSignal](https://runware.ai/docs/models/bria-fibo-lite#request-providersettings-bria-ipsignal)

- **Path**: `providerSettings.bria.ipSignal`
- **Type**: `boolean`
- **Default**: `false`

Flag potential IP-related content in prompt or output.

## Response Parameters

### [taskType](https://runware.ai/docs/models/bria-fibo-lite#response-tasktype)

- **Type**: `string`
- **Required**: true
- **Value**: `imageInference`

Type of the task.

### [taskUUID](https://runware.ai/docs/models/bria-fibo-lite#response-taskuuid)

- **Type**: `string`
- **Required**: true
- **Format**: `UUID v4`

UUID of the task.

### [imageUUID](https://runware.ai/docs/models/bria-fibo-lite#response-imageuuid)

- **Type**: `string`
- **Required**: true
- **Format**: `UUID v4`

UUID of the output image.

### [imageURL](https://runware.ai/docs/models/bria-fibo-lite#response-imageurl)

- **Type**: `string`
- **Format**: `URI`

URL of the output image.

### [imageBase64Data](https://runware.ai/docs/models/bria-fibo-lite#response-imagebase64data)

- **Type**: `string`

Base64-encoded image data.

### [imageDataURI](https://runware.ai/docs/models/bria-fibo-lite#response-imagedatauri)

- **Type**: `string`
- **Format**: `URI`

Data URI of the output image.

### [seed](https://runware.ai/docs/models/bria-fibo-lite#response-seed)

- **Type**: `integer`

The seed used for generation. If none was provided, shows the randomly generated seed.

### [NSFWContent](https://runware.ai/docs/models/bria-fibo-lite#response-nsfwcontent)

- **Type**: `boolean`

Flag indicating if NSFW content was detected.

### [cost](https://runware.ai/docs/models/bria-fibo-lite#response-cost)

- **Type**: `float`

Task cost in USD. Present when `includeCost` is set to `true` in the request.

## Examples

### Geothermal Tea House Cliffs (Text to Image)

![Geothermal Tea House Cliffs](https://assets.runware.ai/examples/bria-fibo-lite/2bf0efb3-7865-43be-b5f3-bed6e4ac6ad0.jpg)

**Request**:

```json
{
  "taskType": "imageInference",
  "taskUUID": "2aecf89d-1634-4093-a1be-f08958907eb6",
  "model": "bria:20@3",
  "positivePrompt": "A secluded tea house complex built into terraced basalt cliffs above steaming mineral pools, winding wooden footbridges, suspended prayer ribbons, copper kettles catching pale morning light, fern-covered rock faces, drifting white vapor, distant cranes gliding over a river gorge, intricate roof tiles, hand-carved railings, cinematic wide composition, crisp environmental storytelling, elegant color harmony of jade, rust, cream, and charcoal, highly detailed, clean shapes, coherent architecture, soft atmospheric perspective",
  "negativePrompt": "text, watermark, logo, blurry, low detail, distorted anatomy, oversaturated, duplicate structures, cluttered composition, harsh contrast, cropped subject, frame, people in foreground",
  "width": 1216,
  "height": 832,
  "seed": 77098,
  "CFGScale": 5,
  "providerSettings": {
    "bria": {
      "ipSignal": false
    }
  }
}
```

**Response**:

```json
{
  "taskType": "imageInference",
  "taskUUID": "2aecf89d-1634-4093-a1be-f08958907eb6",
  "imageUUID": "c3790a69-0495-45d9-aeb8-31a93690dd0e",
  "imageURL": "https://im.runware.ai/image/os/a19d05/ws/2/ii/c3790a69-0495-45d9-aeb8-31a93690dd0e.jpg",
  "seed": 77098,
  "cost": 0.036
}
```

---

### Volcanic Tea House Cliffside (Text to Image)

![Volcanic Tea House Cliffside](https://assets.runware.ai/examples/bria-fibo-lite/3dc37c61-b48f-42b9-9614-5a4cd6082144.jpg)

**Request**:

```json
{
  "taskType": "imageInference",
  "taskUUID": "6e70ea63-0e60-4178-b52d-b80c78c40037",
  "model": "bria:20@3",
  "positivePrompt": "A secluded tea house perched on a jagged basalt cliff above a steaming caldera lake, braided rope bridges connecting narrow rock spires, copper wind chimes, terraced moss gardens clinging to dark stone, pale mineral mist drifting across the scene, early morning amber light breaking through dense clouds, a few tiny figures in weathered cloaks approaching along the bridge, panoramic environmental composition, ultra-detailed textures, natural color harmony, atmospheric depth, crisp focus, cinematic wide shot",
  "negativePrompt": "text, watermark, logo, blurry, low detail, oversaturated colors, distorted anatomy, extra limbs, duplicate figures, cropped buildings, flat lighting, washed out sky",
  "width": 1216,
  "height": 832,
  "seed": 71154,
  "CFGScale": 5,
  "providerSettings": {
    "bria": {
      "ipSignal": false
    }
  }
}
```

**Response**:

```json
{
  "taskType": "imageInference",
  "taskUUID": "6e70ea63-0e60-4178-b52d-b80c78c40037",
  "imageUUID": "bcfe7bbf-c906-4d66-bc8a-b85a0fb81d21",
  "imageURL": "https://im.runware.ai/image/os/a19d05/ws/2/ii/bcfe7bbf-c906-4d66-bc8a-b85a0fb81d21.jpg",
  "seed": 71154,
  "cost": 0.036
}
```

---

### Wind-Carved Cliffside Tea House (Text to Image)

![Wind-Carved Cliffside Tea House](https://assets.runware.ai/examples/bria-fibo-lite/20f6176a-966f-40cb-b014-2cbbf13c1a11.jpg)

**Request**:

```json
{
  "taskType": "imageInference",
  "taskUUID": "3cdf5232-8500-4e7c-9bfe-110401ac329c",
  "model": "bria:20@3",
  "positivePrompt": "A secluded tea house perched on a rugged seaside cliff, long prayer ribbons streaming from weathered wooden beams, terraced herb planters, smooth stone steps, distant whitecaps crashing below, early morning amber haze, gulls circling in the far sky, hand-thrown ceramic cups on a low outdoor table, textured timber, oxidized copper roof accents, layered coastal mist, sweeping horizon, cinematic natural lighting, highly detailed environment, realistic materials, balanced composition, serene and windswept mood",
  "negativePrompt": "text, watermark, logo, people, crowd, cars, modern city skyline, oversaturated colors, blurry details, distorted structure, low contrast, duplicated objects, flat lighting",
  "width": 1344,
  "height": 768,
  "seed": 73300,
  "CFGScale": 5,
  "providerSettings": {
    "bria": {
      "ipSignal": false
    }
  }
}
```

**Response**:

```json
{
  "taskType": "imageInference",
  "taskUUID": "3cdf5232-8500-4e7c-9bfe-110401ac329c",
  "imageUUID": "99fd6286-714e-4787-b96b-d6a7eabbb752",
  "imageURL": "https://im.runware.ai/image/os/a10d08/ws/2/ii/99fd6286-714e-4787-b96b-d6a7eabbb752.jpg",
  "seed": 73300,
  "cost": 0.036
}
```

---

### Cliffside Tea House Dawn (Text to Image)

![Cliffside Tea House Dawn](https://assets.runware.ai/examples/bria-fibo-lite/6b58d020-cd58-4d7c-aea0-4ad107642fe3.jpg)

**Request**:

```json
{
  "taskType": "imageInference",
  "taskUUID": "4142401e-76f7-479e-9c9f-9ff9d87acf07",
  "model": "bria:20@3",
  "positivePrompt": "A serene tea house perched on a steep green cliff above a winding river valley at first light, curved tiled roof, weathered wooden beams, paper lanterns unlit, wisps of morning mist drifting through terraced hills, flowering plum branches framing the foreground, a narrow stone stairway carved into the rock, distant cranes gliding over the water, delicate steam rising from a small outdoor table set with a ceramic teapot and cups, cinematic natural lighting, high detail, crisp textures, harmonious composition, atmospheric depth, painterly realism, soft pastel sky, tranquil and contemplative mood",
  "negativePrompt": "people, crowd, vehicles, city skyline, text, watermark, logo, low resolution, blurry, oversaturated, distorted architecture, duplicate objects, harsh shadows, cluttered composition",
  "width": 1216,
  "height": 832,
  "seed": 58899,
  "CFGScale": 5,
  "providerSettings": {
    "bria": {
      "ipSignal": false
    }
  }
}
```

**Response**:

```json
{
  "taskType": "imageInference",
  "taskUUID": "4142401e-76f7-479e-9c9f-9ff9d87acf07",
  "imageUUID": "954c4fd9-fb1e-4987-8678-9dd8e33ac700",
  "imageURL": "https://im.runware.ai/image/os/a19d05/ws/2/ii/954c4fd9-fb1e-4987-8678-9dd8e33ac700.jpg",
  "seed": 58899,
  "cost": 0.036
}
```