What is sim generator?

A sim generator is an AI-powered tool that creates realistic or stylized character portraits. Unlike generic avatar creators, a robust sim generator allows for granular control over facial features, body types, clothing styles, and background environments, resulting in genuinely unique and expressive characters.

How do I create a character with a specific personality using the sim generator?

Use detailed text prompts to influence the generated character's appearance. Include personality traits like 'grumpy,' 'cheerful,' or 'intense' alongside physical descriptions. Experiment with adding context such as 'wearing tattered clothing and clutching a rusty pipe' to infer a specific backstory.

How does this sim generator compare to other image generators for character design?

Unlike generic image generators that may produce inconsistent results or struggle with character consistency, our sim generator is specifically trained on a vast dataset of diverse character designs. This allows for more accurate and nuanced portrait creation with better control over the finer details.

What are the technical limitations of the sim generator regarding character pose and perspective?

Currently, the sim generator primarily focuses on generating front-facing or slightly angled portraits to ensure consistent facial detail. More complex poses or dynamic perspectives are best achieved through post-processing or integration with 3D modeling software using the generated image as a reference.

What image resolutions and file formats are supported by the sim generator for exporting my created sims?

The sim generator supports export resolutions up to 2048x2048 pixels, and image can be downloaded in both PNG and JPG formats. For optimal quality, PNG is recommended as it retains lossless image data. Larger resolutions are planned for future releases.

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Last updated: February 6, 2026•By BasedLabs Team

sim generator

Craft unique and expressive character portraits instantly. Our sim generator allows you to design original avatars with detailed customization, from facial features and hairstyles to clothing and accessories, achieving high levels of character diversity.

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How to use sim generator

Steps to get you started in BasedLabs.

Step 1

Step 1: Define the Core Attributes

Craft a detailed text prompt.

Begin by describing the core attributes of your desired sim: age, gender, ethnicity, and a general physical description (e.g., 'young Asian woman with bright pink hair'). Be as specific as possible to guide the AI. Add keywords representing clothing styles, such as 'cyberpunk jacket' or 'Victorian gown'.

Step 2

Step 2: Fine-Tune Facial Features

Refine the character's appearance using feature sliders.

After the initial generation, use the integrated facial feature sliders to fine-tune the sim's appearance. Adjust parameters such as eye shape, nose size, lip fullness, and jawline definition. A subtle adjustment can make a significant difference in the overall character design.

Step 3

Step 3: Add Personality and Context

Incorporate environmental details to enhance the portrait.

To infuse personality and context into the image, experiment with adding background details to the prompt. For example, include phrases like 'standing in a futuristic city' or 'sitting in a cozy library.' This helps to create a more immersive and believable character portrait.

Unmatched Character Diversity

Our sim generator is trained on a dataset of over 10 million character portraits from diverse backgrounds, ensuring the creation of unique and representative avatars with realistic and stylized looks. No more cookie-cutter avatars!

Granular Customization Options

Fine-tune your character's appearance with advanced feature sliders and detail controls. Adjust subtle nuances in facial features, clothing styles, and accessories to achieve unparalleled creative control, reaching well beyond simple pre-set options.

Instant Iteration and Design Exploration

Quickly explore countless character variations within seconds. Use the 'Regenerate' feature to explore different interpretations of your prompt, or refine your text prompts to achieve specific outcomes, drastically reducing the time spent on character creation.

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