# ZavyChromaXL - v7.0
>
Significantly changed compared to v4, v5, v6. Last few iterations were beginning to have issues with architecture and nature (as were other checkpoints, funnily enough), where they often looked dull or more akin to extremely low res dotted plants. The way to solve it was increased training on these subjects, and a lot more contrast + detail adjustment. Which also makes darker scenes much more easy to do, to the point of actually being able to reach true black (#000000). This does come at the cost of it requiring adjustment of some prompts that you found beautiful on earlier versions. In some cases you will want to remove any tokens that increase contrast or darkness, or even add them to negative prompt.
Pros
Increased contrast.
Increased details.
Increased darkness.
Increased ability for nature.
Increased ability for architecture.
Increased emotions (still no good winking or crying, maybe LoRA).
Easier to get other styles again, such as 2.5d.
Cons
Eyes can look lifeless more often.
Skin can look more plastic again, often solved by adding 'high contrast' to negative prompt.
For increased photorealism you might need to add 'anime' to your negative prompt. This will also help to increase mature look of your prompted character.
Hair looks less smooth (more stray hairs).
Will need prompt changes if looking too dark, or too contrasty.
Rare occasion of color blotches in some prompts + sampler/scheduler combo.
## Overview
- **Model ID**: `zavychromaxl-v7-0`
- **Category**: stable diffusion xl
- **Provider**: modelslab
- **Status**: model_ready
- **Screenshot**: `https://image.civitai.com/xG1nkqKTMzGDvpLrqFT7WA/ef791b34-d135-48a5-821e-0b1647897221/width=1800/11723023.jpeg`
## API Information
This model can be used via our HTTP API. See the API documentation and usage examples below.
### Endpoint
- **URL**: `https://modelslab.com/api/v6/images/text2img`
- **Method**: POST
### Parameters
- **`prompt`** (required): prompt help in image generation
- Type: textarea
- Example: Enter prompt
- **`model_id`** (required): Enter model_id that can help in image generation
- Type: text
- Example: Enter model_id here
- **`lora_model`** (required):
- Type: multiple_models
- **`width`** (required): width of the image
- Type: number (range: 512-1024)
- **`height`** (required): height of the image
- Type: number (range: 512-1024)
- **`negative_prompt`** (optional): Negative prompt help in avoid things that you do not want in image
- Type: textarea
- Example: Enter negative prompt that you do not want see in image
- **`scheduler`** (optional):
- Type: select (options: DPM++ 2M, DPM++ SDE, Euler, Euler a)
- **`guidance_scale`** (optional):
- Type: number (range: 1-10)
## Usage Examples
### cURL
```bash
curl --request POST \
--url https://modelslab.com/api/v6/images/text2img \
--header "Content-Type: application/json" \
--data '{
"key": "YOUR_API_KEY",
"model_id": "zavychromaxl-v7-0",
"prompt": "R3alisticF, hauntingly beautiful oriental necromancer, long flowing brown hair, bangs, darkly tanned skin, earrings, bone necklaces, dark eyeshadow, red lips, vibrant, front-laced transparent, filmy silk blouse, cleavage, holding skull, in a sandstone room lit by candles, High Detail, Perfect Composition, high contrast, silhouetted, chiascuro",
"width": "1024",
"height": "1024",
"negative_prompt": "(worst quality:2), (low quality:2), (normal quality:2), (jpeg artifacts), (blurry), (duplicate), (morbid), (mutilated), (out of frame), (extra limbs), (bad anatomy), (disfigured), (deformed), (cross-eye), (glitch), (oversaturated), (overexposed), (underexposed), (bad proportions), (bad hands), (bad feet), (cloned face), (long neck), (missing arms), (missing legs), (extra fingers), (fused fingers), (poorly drawn hands), (poorly drawn face), (mutation), (deformed eyes), watermark, text, logo, signature, grainy, tiling, censored, nsfw, ugly, blurry eyes, noisy image, bad lighting, unnatural skin, asymmetry",
"scheduler": "DPMSolverMultistepScheduler",
"guidance_scale": "7.5"
}'
```
### Python
```python
import requests
response = requests.post(
"https://modelslab.com/api/v6/images/text2img",
headers={
"Content-Type": "application/json"
},
json={
"key": "YOUR_API_KEY",
"model_id": "zavychromaxl-v7-0",
"prompt": "R3alisticF, hauntingly beautiful oriental necromancer, long flowing brown hair, bangs, darkly tanned skin, earrings, bone necklaces, dark eyeshadow, red lips, vibrant, front-laced transparent, filmy silk blouse, cleavage, holding skull, in a sandstone room lit by candles, High Detail, Perfect Composition, high contrast, silhouetted, chiascuro",
"width": "1024",
"height": "1024",
"negative_prompt": "(worst quality:2), (low quality:2), (normal quality:2), (jpeg artifacts), (blurry), (duplicate), (morbid), (mutilated), (out of frame), (extra limbs), (bad anatomy), (disfigured), (deformed), (cross-eye), (glitch), (oversaturated), (overexposed), (underexposed), (bad proportions), (bad hands), (bad feet), (cloned face), (long neck), (missing arms), (missing legs), (extra fingers), (fused fingers), (poorly drawn hands), (poorly drawn face), (mutation), (deformed eyes), watermark, text, logo, signature, grainy, tiling, censored, nsfw, ugly, blurry eyes, noisy image, bad lighting, unnatural skin, asymmetry",
"scheduler": "DPMSolverMultistepScheduler",
"guidance_scale": "7.5"
}
)
print(response.json())
```
### JavaScript
```javascript
fetch("https://modelslab.com/api/v6/images/text2img", {
method: "POST",
headers: {
"Content-Type": "application/json"
},
body: JSON.stringify({
"key": "YOUR_API_KEY",
"model_id": "zavychromaxl-v7-0",
"prompt": "R3alisticF, hauntingly beautiful oriental necromancer, long flowing brown hair, bangs, darkly tanned skin, earrings, bone necklaces, dark eyeshadow, red lips, vibrant, front-laced transparent, filmy silk blouse, cleavage, holding skull, in a sandstone room lit by candles, High Detail, Perfect Composition, high contrast, silhouetted, chiascuro",
"width": "1024",
"height": "1024",
"negative_prompt": "(worst quality:2), (low quality:2), (normal quality:2), (jpeg artifacts), (blurry), (duplicate), (morbid), (mutilated), (out of frame), (extra limbs), (bad anatomy), (disfigured), (deformed), (cross-eye), (glitch), (oversaturated), (overexposed), (underexposed), (bad proportions), (bad hands), (bad feet), (cloned face), (long neck), (missing arms), (missing legs), (extra fingers), (fused fingers), (poorly drawn hands), (poorly drawn face), (mutation), (deformed eyes), watermark, text, logo, signature, grainy, tiling, censored, nsfw, ugly, blurry eyes, noisy image, bad lighting, unnatural skin, asymmetry",
"scheduler": "DPMSolverMultistepScheduler",
"guidance_scale": "7.5"
})
})
.then(response => response.json())
.then(data => console.log(data));
```
## Links
- [Model Playground](https://modelslab.com/models/community-model/zavychromaxl-v7-0)
- [API Documentation](https://docs.modelslab.com)
- [ModelsLab Platform](https://modelslab.com)