---
title: H4 Realistic SD1.5   Refiner45a API Docs | Text to Image | ModelsLab
description: API documentation, code examples, and SDKs for H4 Realistic SD1.5   Refiner45a. Integrate AI into your app with Python, JavaScript, cURL, and CLI. Pay-per-use pricing.
url: https://modelslab.com/models/modelslab/h4-realistic-sd1-5-refiner45a/api
canonical: https://modelslab.com/models/modelslab/h4-realistic-sd1-5-refiner45a/api
type: product
component: Playground/Endpoint/Index
generated_at: 2026-03-31T14:49:10.035106Z
---

# H4 Realistic SD1.5   Refiner45a API Docs | Text to Image | ModelsLab

> API documentation, code examples, and SDKs for H4 Realistic SD1.5   Refiner45a. Integrate AI into your app with Python, JavaScript, cURL, and CLI. Pay-per-use pricing.

**Navigation**: [Home](https://modelslab.com) > [Models](https://modelslab.com/models) > [ModelsLab](https://modelslab.com/models/modelslab) > [H4 Realistic SD1.5   Refiner45a](https://modelslab.com/models/modelslab/h4-realistic-sd1-5-refiner45a/api) > API Documentation

## Model

### [h4_Realistic SD1.5 - refiner45a](https://modelslab.com/models/modelslab/h4-realistic-sd1-5-refiner45a)

**Model ID:** h4-realistic-sd1-5-refiner45a
**Category:** Stable Diffusion
**Provider:** Modelslab

This was my first attempt at an update to 4.5.

It didnt' work out exactly how I planned however, I discovered by accident it makes an excellent refiner. 

So I changed my plan of attack and bam we have a refiner. 

Load it like a checkpoint or use the refiner nodes.

Tags: style, realistic, real

## Endpoint

### Text to Image Community Model

**Endpoint:** `v6/images/text2img`
**Provider:** Modelslab
**Category:** Image

Generate photorealistic and imaginative images from text prompts with advanced detail, inpainting, and image-to-image translation features, ideal for creatives and marketers.

Per image generation will cost 0.0047$ 
For premium plan image generation will cost 0.00$ i.e Free.

## API Docs

- [API Docs](https://modelslab.com/models/modelslab/h4-realistic-sd1-5-refiner45a/llms.txt)

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*This markdown version is optimized for AI agents and LLMs.*

**Links:**
- [Website](https://modelslab.com)
- [API Documentation](https://docs.modelslab.com)
- [Blog](https://modelslab.com/blog)

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*Generated by ModelsLab - 2026-03-31*