--- title: RealVisXL V4.0 API | Text to Image | ModelsLab description: Generate images from text with RealVisXL V4.0. High-resolution AI image generation. Pay-per-use. Free tier. url: https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/modelslab/realvisxl-v40/api.md canonical: https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/modelslab/realvisxl-v40/api.md type: product component: Playground/Endpoint/Index generated_at: 2026-05-13T15:08:13.987335Z --- [![RealVisXL V4.0 thumbnail](https://assets.modelslab.ai/api-logos/01KPMZY676ZM0Z7YJWBM9C78QP.png)](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/modelslab)RealVisXL V4.0 --- [by ModelsLab](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/modelslab)This image captures a scene rendered in the realism style, highlighting the intricate details and lifelike quality that define this artistic approach. `realvisxl-v40` Open Source Model [Unlimited Usage](https://modelslab-frontend-v2-927501783998.us-east4.run.app/pricing) [LLMs.txt](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/modelslab/realvisxl-v40/llms.txt) [API Playground](/models/modelslab/realvisxl-v40) [API Documentation](/models/modelslab/realvisxl-v40/api)Vibe CodeRelated ModelsDeveloper SupportModel SpecsEnterprise Deployment Input --- 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 Model lora Model Select models... Width Height Advanced Settings Customize your input with more control. 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Get your API key from the [pricing page](https://modelslab-frontend-v2-927501783998.us-east4.run.app/pricing) to get started. PythonJavaScriptcURLPHP ``` import requests import json url = "https://modelslab.com/api/v6/images/text2img" headers = { "Content-Type": "application/json" } data = { "model_id": "realvisxl-v40", "prompt": "your prompt here", "key": "YOUR_API_KEY" } try: response = requests.post(url, headers=headers, json=data) response.raise_for_status() # Raises an HTTPError for bad responses (4XX or 5XX) result = response.json() print("API Response:") print(json.dumps(result, indent=2)) except requests.exceptions.HTTPError as http_err: print(f"HTTP error occurred: {http_err} - {response.text}") except Exception as err: print(f"Other error occurred: {err}") ``` View the [full API documentation](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/modelslab/realvisxl-v40/api) for SDKs, code examples in Python, JavaScript, and more. ### Pricing RealVisXL V4.0 API costs $0.0047 per API call. Pay only for what you use with no minimum commitments. [View pricing plans](https://modelslab-frontend-v2-927501783998.us-east4.run.app/pricing) [Browse All Models](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models) [More from Modelslab](https://modelslab-frontend-v2-927501783998.us-east4.run.app/models/modelslab) [View Pricing](https://modelslab-frontend-v2-927501783998.us-east4.run.app/pricing) RealVisXL V4.0 FAQ --- ### What is RealVisXL V4.0? This image captures a scene rendered in the realism style, highlighting the intricate details and lifelike quality that define this artistic approach. ### How do I use the RealVisXL V4.0 API? You can integrate RealVisXL V4.0 into your application with a single API call. Sign up on ModelsLab to get your API key, then use the model ID "realvisxl-v40" in your API requests. We provide SDKs for Python, JavaScript, and cURL examples in the API documentation. ### How much does RealVisXL V4.0 cost? RealVisXL V4.0 costs $0.0047 per API call. ModelsLab uses pay-per-use pricing with no minimum commitments. A free tier is available to get started. ### What is the RealVisXL V4.0 model ID? The model ID for RealVisXL V4.0 is "realvisxl-v40". Use this ID in your API requests to specify this model. ### Does RealVisXL V4.0 have a free tier? Yes, ModelsLab offers a free tier that lets you try RealVisXL V4.0 and other AI models. Sign up to get free API credits and start building immediately. --- *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) --- *Generated by ModelsLab - 2026-05-13*