
Step 1
Set your prompt
Enter a clear text prompt describing the subject, style, and mood. Add key details like lighting, angle, and format to guide the AI generator.
A Fourth Test is an AI creative asset generator for images and variations. Use prompts, refine styles, and export results fast—try it online now.
Run the app to see your first output
How to use A Fourth Test
Use A Fourth Test to turn prompts into polished creative assets quickly. Follow these steps to set your style, generate variations, and export results for your next project.

Step 1
Enter a clear text prompt describing the subject, style, and mood. Add key details like lighting, angle, and format to guide the AI generator.

Step 2
Run the model to create multiple options at once. Tweak settings like style intensity and composition, then regenerate to refine results.

Step 3
Pick the best output and download in your preferred format. Use the asset in presentations, prototypes, ads, or social content with consistent styling.
Features
A Fourth Test combines prompt-based generation with quick variation controls to speed up visual exploration. Create multiple directions from a single idea, refine style and composition, and keep outputs consistent across a set. It’s an online AI tool designed for rapid prototyping and production-ready creative assets.

Turn text prompts into high-quality images in seconds. The AI generator interprets subject, style, and mood to produce usable creative assets for multiple formats.

Generate multiple variations and iterate quickly without restarting. Adjust style strength, composition cues, and detail level to converge on the best result faster.

Stay in flow with an optimized, web-based process. Create, compare, and export assets quickly, reducing turnaround time for prototypes, campaigns, and content batches.
About
A Fourth Test is an AI creative asset generator that helps you produce images, variations, and concept directions from simple text prompts. Adjust style, composition, and detail to quickly iterate toward the look you need. Generate high-quality outputs in minutes for mockups, campaigns, and visual exploration—directly online with a streamlined workflow.
A Fourth Test is built for speed, control, and repeatable results. Generate multiple visual directions from one prompt, refine without friction, and keep output consistency across a set. It’s a practical AI tool for turning ideas into usable assets fast.
Open A Fourth Test online, write a detailed prompt, and generate your first set of images. Iterate with variations, then download the best results for your workflow.
Use cases
Discover how different creators use this app in their workflow.
Generate campaign visuals, product concepts, and on-brand variations quickly. Iterate creative directions fast and export assets ready for testing across channels.
Create mockups, concept art, and UI illustration directions from prompts. Explore multiple looks early, then refine the best options for stakeholder reviews.
Produce scroll-stopping visuals, thumbnails, and post variations at speed. Keep a consistent style while generating enough options to match different topics.
Krea is one of the world's leading generative AI platforms. See what others say.
Real reviews on TrustpilotSo many AI tools out there but I always come back to Krea. It's really the one AI platform that 'just works'.
FYN
Krea's interfaces are still the best in the industry. Everything looks and feels so clean and easy to use! Imo the easiest to use gen AI website.
Lynn
Ultra fast generations. Extremely simple to use. All the latest AI models.
Daniel
KREA is the only AI subscription I have right now besides ChatGPT.
Sophia M.
I'm a Krea Max user. It's crazy how fast they add models. I see a new AI model on twitter and the same day krea already offers it.
Wirot Ch.
Still the most powerful AI creative suite out there.
Gravion
Find quick answers about A Fourth Test, AI generation, and exporting results online.
A Fourth Test is an online AI creative asset generator that produces images and variations from text prompts. It helps you explore styles quickly, refine outputs, and export results for real projects.
It uses artificial intelligence and machine learning to interpret your prompt and generate visual outputs. By adjusting prompt details and settings, you can guide composition, style, and level of detail.
Yes. Generate several variations at once, then iterate by changing style strength, keywords, or composition cues. This workflow helps you compare directions and converge on the best result quickly.
Use specific, descriptive prompts that include subject, style, mood, lighting, and framing. Add constraints like background, color palette, or format to reduce randomness and improve consistency across generations.
Access depends on the plan available in the app. You can start online and generate assets immediately, then choose options that match your usage needs and output volume.
In many cases, yes, depending on the app’s usage terms for generated content. Review the in-app licensing details before publishing or distributing outputs in marketing or product work.
Reuse a stable prompt structure, keep key descriptors consistent, and generate variations with small controlled changes. This approach helps maintain a cohesive look across a set of assets.
Export options depend on the app’s available download settings. Typically, you can download common image formats suitable for web, presentations, and design workflows, then resize or edit as needed.
Because it runs online, A Fourth Test works on modern browsers across desktop and mobile devices. For best results, use a stable connection and enough screen space to compare variations.
Clarify the prompt, add constraints, and reduce conflicting keywords. Generate more variations, then refine with small incremental changes to style and composition until the output matches your goal.
Start with a prompt, produce multiple variations, and export polished creative assets in minutes—right in your browser.