---
title: HiDream-I1 Fast | Runware Docs
url: https://runware.ai/docs/models/hidream-i1-fast
description: HiDream-I1 Fast for low latency text to image generation
---
# HiDream-I1 Fast

HiDream-I1 Fast is a distilled text to image model tuned for very low latency workflows. It runs with fewer diffusion steps than Full or Dev variants and keeps strong prompt adherence. Ideal for real-time previews, rapid drafts and bulk image generation in production pipelines.

- **ID**: `runware:97@3`
- **Status**: live
- **Release Date**: April 7, 2025
- **Capabilities**: Text to Image

## Pricing

Each image generation costs $0.0032 at 1024x1024.

- **1024x1024 · 16 steps**: `$0.0038`
- **1024x1024 · 22 steps**: `$0.0051`

## Compatibility & Validation

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

## Request Parameters

**API Options**

Platform-level options for task execution and delivery.

### [taskType](https://runware.ai/docs/models/hidream-i1-fast#request-tasktype)

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

Identifier for the type of task being performed

### [taskUUID](https://runware.ai/docs/models/hidream-i1-fast#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/hidream-i1-fast#request-outputtype)

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

Image output type.

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

### [outputFormat](https://runware.ai/docs/models/hidream-i1-fast#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/hidream-i1-fast#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/hidream-i1-fast#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/hidream-i1-fast#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/hidream-i1-fast#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/hidream-i1-fast#request-safety)

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

Content safety checking configuration for image generation.

#### [checkContent](https://runware.ai/docs/models/hidream-i1-fast#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/hidream-i1-fast#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/hidream-i1-fast#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/hidream-i1-fast#request-includecost)

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

Include task cost in the response.

### [numberResults](https://runware.ai/docs/models/hidream-i1-fast#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.

### [acceleratorOptions](https://runware.ai/docs/models/hidream-i1-fast#request-acceleratoroptions)

- **Path**: `acceleratorOptions.cacheEndStep`
- **Type**: `object (12 properties)`

Advanced caching mechanisms to speed up generation.

#### [cacheEndStep](https://runware.ai/docs/models/hidream-i1-fast#request-acceleratoroptions-cacheendstep)

- **Path**: `acceleratorOptions.cacheEndStep`
- **Type**: `integer`
- **Min**: `1`

Absolute step number to end caching. Must be greater than `cacheStartStep` and less than or equal to `steps`.

#### [cacheEndStepPercentage](https://runware.ai/docs/models/hidream-i1-fast#request-acceleratoroptions-cacheendsteppercentage)

- **Path**: `acceleratorOptions.cacheEndStepPercentage`
- **Type**: `integer`
- **Min**: `1`
- **Max**: `100`

Percentage of steps to end caching. Alternative to `cacheEndStep`. Must be greater than `cacheStartStepPercentage`.

#### [cacheMaxConsecutiveSteps](https://runware.ai/docs/models/hidream-i1-fast#request-acceleratoroptions-cachemaxconsecutivesteps)

- **Path**: `acceleratorOptions.cacheMaxConsecutiveSteps`
- **Type**: `integer`
- **Min**: `1`
- **Max**: `5`
- **Default**: `3`

Limits the maximum number of consecutive steps that can use cached computations before forcing a fresh computation.

#### [cacheStartStep](https://runware.ai/docs/models/hidream-i1-fast#request-acceleratoroptions-cachestartstep)

- **Path**: `acceleratorOptions.cacheStartStep`
- **Type**: `integer`
- **Min**: `0`

Absolute step number to start caching. Must be less than `cacheEndStep`.

#### [cacheStartStepPercentage](https://runware.ai/docs/models/hidream-i1-fast#request-acceleratoroptions-cachestartsteppercentage)

- **Path**: `acceleratorOptions.cacheStartStepPercentage`
- **Type**: `integer`
- **Min**: `0`
- **Max**: `99`

Percentage of steps to start caching. Alternative to `cacheStartStep`. Must be less than `cacheEndStepPercentage`.

#### [fbCache](https://runware.ai/docs/models/hidream-i1-fast#request-acceleratoroptions-fbcache)

- **Path**: `acceleratorOptions.fbCache`
- **Type**: `boolean`
- **Default**: `false`

First Block Cache (FBCache) acceleration. Reuses feature block computations across steps.

#### [fbCacheThreshold](https://runware.ai/docs/models/hidream-i1-fast#request-acceleratoroptions-fbcachethreshold)

- **Path**: `acceleratorOptions.fbCacheThreshold`
- **Type**: `float`
- **Min**: `0`
- **Max**: `1`
- **Step**: `0.01`
- **Default**: `0.25`

Controls the sensitivity threshold for determining when to reuse cached computations. Lower values reuse more aggressively.

#### [teaCache](https://runware.ai/docs/models/hidream-i1-fast#request-acceleratoroptions-teacache)

- **Path**: `acceleratorOptions.teaCache`
- **Type**: `boolean`
- **Default**: `false`

TeaCache acceleration for transformer-based models. Estimates step differences to skip redundant computations.

#### [teaCacheDistance](https://runware.ai/docs/models/hidream-i1-fast#request-acceleratoroptions-teacachedistance)

- **Path**: `acceleratorOptions.teaCacheDistance`
- **Type**: `float`
- **Min**: `0`
- **Max**: `1`
- **Step**: `0.01`
- **Default**: `0.5`

Controls the aggressiveness of the TeaCache feature. Lower values prioritize quality, higher values prioritize speed.

#### [dbCache](https://runware.ai/docs/models/hidream-i1-fast#request-acceleratoroptions-dbcache)

- **Path**: `acceleratorOptions.dbCache`
- **Type**: `boolean`
- **Default**: `false`

DB Cache (CacheDiT) acceleration. Caches and reuses intermediate transformer block outputs to skip redundant computations.

#### [dbCacheThreshold](https://runware.ai/docs/models/hidream-i1-fast#request-acceleratoroptions-dbcachethreshold)

- **Path**: `acceleratorOptions.dbCacheThreshold`
- **Type**: `float`
- **Min**: `0`
- **Max**: `1`
- **Step**: `0.01`
- **Default**: `0.25`

Controls the sensitivity threshold for DB Cache. Lower values reuse cached blocks more aggressively, higher values prioritize quality.

#### [dbCacheSkipInterval](https://runware.ai/docs/models/hidream-i1-fast#request-acceleratoroptions-dbcacheskipinterval)

- **Path**: `acceleratorOptions.dbCacheSkipInterval`
- **Type**: `integer`
- **Min**: `1`
- **Default**: `5`

Controls how many steps to skip between cache refreshes. Higher values skip more steps for faster generation at the cost of quality.

**Generation Parameters**

Core parameters for controlling the generated content.

### [model](https://runware.ai/docs/models/hidream-i1-fast#request-model)

- **Type**: `string`
- **Required**: true
- **Value**: `runware:97@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/hidream-i1-fast#request-positiveprompt)

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

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/hidream-i1-fast#request-negativeprompt)

- **Type**: `string`

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/hidream-i1-fast#request-width)

- **Type**: `integer`
- **Min**: `128`
- **Max**: `2048`
- **Step**: `16`
- **Default**: `1024`

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/hidream-i1-fast#request-height)

- **Type**: `integer`
- **Min**: `128`
- **Max**: `2048`
- **Step**: `16`
- **Default**: `1024`

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/hidream-i1-fast#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)

### [steps](https://runware.ai/docs/models/hidream-i1-fast#request-steps)

- **Type**: `integer`
- **Min**: `1`
- **Default**: `16`

Total number of denoising steps. Higher values generally produce more detailed results but take longer.

**Learn more** (1 resource):

- [Text To Image: Steps Trading Quality For Speed](https://runware.ai/docs/guides/text-to-image#steps-trading-quality-for-speed) (guide)

### [scheduler](https://runware.ai/docs/models/hidream-i1-fast#request-scheduler)

- **Type**: `string`

Scheduler to use for the diffusion process.

**Allowed values**: `DDIM` `DDIMScheduler` `DDPMScheduler` `DEISMultistepScheduler` `Default` `DPM++` `DPM++ 2M` `DPM++ 2M Beta` `DPM++ 2M Exponential` `DPM++ 2M Karras` `DPM++ 2M SDE` `DPM++ 2M SDE Beta` `DPM++ 2M SDE Exponential` `DPM++ 2M SDE Karras` `DPM++ 2M SDE Uniform` `DPM++ 2M Uniform` `DPM++ 3M` `DPM++ 3M Beta` `DPM++ 3M Exponential` `DPM++ 3M Karras` `DPM++ 3M SDE Uniform` `DPM++ 3M Uniform` `DPM++ Beta` `DPM++ Exponential` `DPM++ Karras` `DPM++ SDE` `DPM++ SDE Beta` `DPM++ SDE Exponential` `DPM++ SDE Karras` `DPM++ Uniform` `DPM++ Uniform Beta` `DPM++ Uniform Exponential` `DPM++ Uniform Karras` `DPMSolverMultistepInverse` `DPMSolverMultistepScheduler` `DPMSolverSinglestepScheduler` `EDMDPMSolverMultistepScheduler` `EDMEulerScheduler` `Euler` `Euler a` `Euler Beta` `Euler DiscreteScheduler` `Euler Exponential` `Euler Karras` `EulerAncestralDiscreteScheduler` `FlowMatchEulerDiscreteScheduler` `Heun` `HeunDiscreteScheduler` `Heun Karras` `IPNDMScheduler` `IPNDM Uniform` `IPNDM Uniform Beta` `IPNDM Uniform Exponential` `IPNDM Uniform Karras` `KDPM2AncestralDiscreteScheduler` `KDPM2DiscreteScheduler` `LCM` `LCMScheduler` `LMS` `LMSDiscreteScheduler` `LMS Karras` `PNDMScheduler` `TCDScheduler` `UniPC` `UniPC 2M` `UniPC 2M Karras` `UniPC 2M Uniform` `UniPC 3M` `UniPC 3M Karras` `UniPC 3M Uniform` `UniPC Karras` `UniPC Uniform` `UniPC Uniform Beta` `UniPC Uniform Exponential` `UniPC Uniform Karras`

**Learn more** (2 resources):

- [Text To Image: Scheduler The Algorithmic Path To Your Image](https://runware.ai/docs/guides/text-to-image#scheduler-the-algorithmic-path-to-your-image) (guide)
- [Image Outpainting: Other Critical Parameters](https://runware.ai/docs/guides/image-outpainting#other-critical-parameters) (guide)

### [CFGScale](https://runware.ai/docs/models/hidream-i1-fast#request-cfgscale)

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

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

**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)

### [lora](https://runware.ai/docs/models/hidream-i1-fast#request-lora)

- **Path**: `lora.model`
- **Type**: `array of objects (3 properties)`

With LoRA (Low-Rank Adaptation), you can adapt a model to specific styles or features by emphasizing particular aspects of the data. This technique enhances the quality and relevance of generated content and can be especially useful when the output needs to adhere to a specific artistic style or follow particular guidelines.

Multiple LoRA models can be used simultaneously to achieve different adaptation goals.

**Examples**:

```json
"lora": [
  {
    "model": "<lora-model-air>",
    "weight": 0.8
  }
]
```

**Learn more** (1 resource):

- [Text To Image: Loras Style And Subject Adapters](https://runware.ai/docs/guides/text-to-image#loras-style-and-subject-adapters) (guide)

#### [model](https://runware.ai/docs/models/hidream-i1-fast#request-lora-model)

- **Path**: `lora.model`
- **Type**: `string`
- **Required**: true

LoRA model identifier.

#### [weight](https://runware.ai/docs/models/hidream-i1-fast#request-lora-weight)

- **Path**: `lora.weight`
- **Type**: `float`
- **Min**: `-4`
- **Max**: `4`
- **Step**: `0.01`
- **Default**: `1`

Strength of the LoRA influence. A value of 0 means no influence. Higher values increase the influence, and negative values can be used to steer away from the LoRA's style.

#### [transformer](https://runware.ai/docs/models/hidream-i1-fast#request-lora-transformer)

- **Path**: `lora.transformer`
- **Type**: `string`
- **Default**: `both`

Transformer stages to apply LoRA. Some video models use separate high-noise and low-noise processing stages, and LoRAs can be selectively applied to optimize their effectiveness.

**Allowed values**:

- `high` Apply LoRA only to the high-noise processing stage (coarse structure and early generation steps).
- `low` Apply LoRA only to the low-noise processing stage (fine details and later generation steps).
- `both` Apply LoRA to both stages for full coverage.

## Response Parameters

### [taskType](https://runware.ai/docs/models/hidream-i1-fast#response-tasktype)

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

Type of the task.

### [taskUUID](https://runware.ai/docs/models/hidream-i1-fast#response-taskuuid)

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

UUID of the task.

### [imageUUID](https://runware.ai/docs/models/hidream-i1-fast#response-imageuuid)

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

UUID of the output image.

### [imageURL](https://runware.ai/docs/models/hidream-i1-fast#response-imageurl)

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

URL of the output image.

### [imageBase64Data](https://runware.ai/docs/models/hidream-i1-fast#response-imagebase64data)

- **Type**: `string`

Base64-encoded image data.

### [imageDataURI](https://runware.ai/docs/models/hidream-i1-fast#response-imagedatauri)

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

Data URI of the output image.

### [seed](https://runware.ai/docs/models/hidream-i1-fast#response-seed)

- **Type**: `integer`

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

### [NSFWContent](https://runware.ai/docs/models/hidream-i1-fast#response-nsfwcontent)

- **Type**: `boolean`

Flag indicating if NSFW content was detected.

### [cost](https://runware.ai/docs/models/hidream-i1-fast#response-cost)

- **Type**: `float`

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

## Examples

### Flooded Grand Arcade Atrium (Text to Image)

![Flooded Grand Arcade Atrium](https://assets.runware.ai/examples/hidream-i1-fast/31553925-9d99-47fe-8ab0-65126795e302.jpg)

**Request**:

```json
{
  "taskType": "imageInference",
  "taskUUID": "a09ac0b7-0a3d-4226-9f1c-77d858daab7c",
  "model": "runware:97@3",
  "positivePrompt": "A vast abandoned shopping arcade transformed into a shallow indoor lagoon, glass-vaulted ceiling fractured in elegant geometric patterns, hanging cable cars stalled above the water, koi-colored rowing skiffs drifting between marble columns, tangled flowering vines descending from upper balconies, scattered mannequins half-submerged like relics, warm late-afternoon sunlight streaming through dusty glass and reflecting across rippled water, intricate tile mosaics visible beneath the clear surface, distant escalators frozen in place, cinematic wide composition, highly detailed architecture, reflective surfaces, atmospheric depth, realistic materials, dramatic scale, polished concept rendering",
  "width": 1024,
  "height": 768,
  "seed": 33458,
  "steps": 16
}
```

**Response**:

```json
{
  "taskType": "imageInference",
  "taskUUID": "a09ac0b7-0a3d-4226-9f1c-77d858daab7c",
  "imageUUID": "24cff7c3-54a5-495f-a28a-b09dbbd9e254",
  "imageURL": "https://im.runware.ai/image/os/a13d12/ws/2/ii/24cff7c3-54a5-495f-a28a-b09dbbd9e254.jpg",
  "seed": 33458,
  "cost": 0.0026
}
```

---

### Stormglass Aviary Over Tidelands (Text to Image)

![Stormglass Aviary Over Tidelands](https://assets.runware.ai/examples/hidream-i1-fast/97fa14e5-5c1d-4864-adba-f05d66667afe.jpg)

**Request**:

```json
{
  "taskType": "imageInference",
  "taskUUID": "9a9c1e7e-0759-4332-8845-8ce555dee7f9",
  "model": "runware:97@3",
  "positivePrompt": "A vast glass-and-brass aviary built on stilts above sweeping tidal flats at low water, hundreds of suspended prism cages and open flying rings, white and copper seabirds wheeling through shafts of pale sunlight after a passing storm, wet wooden walkways, rippled sand patterns below, distant fishing skiffs stranded on the mud, wind-tossed pennants, intricate riveted framework, reflective puddles, dramatic cloud breakup, crisp atmosphere, cinematic wide shot, highly detailed, natural color palette, elegant sense of scale, realistic textures, strong depth, polished concept illustration",
  "width": 1024,
  "height": 576,
  "seed": 50950,
  "steps": 16
}
```

**Response**:

```json
{
  "taskType": "imageInference",
  "taskUUID": "9a9c1e7e-0759-4332-8845-8ce555dee7f9",
  "imageUUID": "e31c53fc-f8a5-4bb3-8901-1ee48065622c",
  "imageURL": "https://im.runware.ai/image/os/a10d08/ws/2/ii/e31c53fc-f8a5-4bb3-8901-1ee48065622c.jpg",
  "seed": 50950,
  "cost": 0.0026
}
```

---

### Wind-Carved Desert Relay Station (Text to Image)

![Wind-Carved Desert Relay Station](https://assets.runware.ai/examples/hidream-i1-fast/105117a8-415a-420e-a95c-53335f8dd8b1.jpg)

**Request**:

```json
{
  "taskType": "imageInference",
  "taskUUID": "8775cb7d-6d95-4756-9585-10209a656ac7",
  "model": "runware:97@3",
  "positivePrompt": "A vast desert communications outpost half-buried by centuries of migrating dunes, featuring tall ceramic signal fins, braided antenna cables, weathered sandstone platforms, mirrored heliograph arrays, and suspended fabric shades snapping in dry wind; tiny maintenance figures in dust cloaks crossing narrow bridges between relay towers; a caravan of six-legged pack animals resting beside stacked water drums; distant heat haze, swirling sand eddies, sun-bleached mineral colors, ochre and pale turquoise accents, crisp cast shadows, cinematic wide shot, ultra-detailed environment design, believable materials, layered depth, dynamic sky with high thin clouds, realistic lighting, sharp focal clarity",
  "width": 1024,
  "height": 768,
  "seed": 5008,
  "steps": 12
}
```

**Response**:

```json
{
  "taskType": "imageInference",
  "taskUUID": "8775cb7d-6d95-4756-9585-10209a656ac7",
  "imageUUID": "d0510854-c559-4e4f-b358-6132debe2423",
  "imageURL": "https://im.runware.ai/image/os/a25d05/ws/2/ii/d0510854-c559-4e4f-b358-6132debe2423.jpg",
  "seed": 5008,
  "cost": 0.0019
}
```

---

### Subterranean Fungal Tram Terminal (Text to Image)

![Subterranean Fungal Tram Terminal](https://assets.runware.ai/examples/hidream-i1-fast/e830f875-a8d5-4c87-972e-e9d80e9b537f.jpg)

**Request**:

```json
{
  "taskType": "imageInference",
  "taskUUID": "a6fbc470-543e-45be-81ac-c9397a357b63",
  "model": "runware:97@3",
  "positivePrompt": "A vast underground tram terminal carved into ancient stone caverns, where sleek glass railcars arrive beside giant shelves of pale amber fungi and curling mineral formations. Commuters in practical field gear cross suspended platforms over shallow reflective pools, porters push carts of crystal samples, and hand-painted wayfinding signs hang from iron beams. Warm lantern glow mixes with cool daylight shafts from narrow openings above, creating cinematic contrast and soft atmospheric haze. Detailed textures, rich environmental storytelling, dynamic perspective, highly coherent architecture, realistic materials, sharp focus, premium concept illustration quality.",
  "width": 1024,
  "height": 768,
  "seed": 35574,
  "steps": 16
}
```

**Response**:

```json
{
  "taskType": "imageInference",
  "taskUUID": "a6fbc470-543e-45be-81ac-c9397a357b63",
  "imageUUID": "f6fd92c0-5aac-4b3e-98e3-5698182716d1",
  "imageURL": "https://im.runware.ai/image/os/a22d05/ws/2/ii/f6fd92c0-5aac-4b3e-98e3-5698182716d1.jpg",
  "seed": 35574,
  "cost": 0.0026
}
```