Decoding AI UI Design Tools: When to Use Galileo, Subframe, and More

A soothing beautiful visual

As the design world tilts further into the realm of AI-powered tooling, we’re seeing a new breed of UI generators reshape how product teams approach ideation, iteration, and prototyping. Tools like Galileo, Subframe, and Creatie are quickly becoming allies to UX designers who want to speed up workflows without compromising creativity.

But each tool brings its own strengths—and limits. Here’s how to decide when and why to use them.

Galilio UI

Galileo: Great for Speed, Not for Structure

Galileo offers a smooth, chat-based interface that lets designers generate image-based screens quickly. It’s especially handy for those early ideation phases when fidelity isn’t the goal—speed and creativity are.

However, Galileo comes with constraints:

• It relies on full prompts for every design update (even minor edits).

• It does not support design tokens or themes, meaning consistency is harder to enforce.

• Ideal for low-fidelity outputs, but lacks fine-grained editing control.

Use Galileo when your goal is speed over polish. Perfect for first-draft concepts or moodboarding sessions.

Creatie & Subframe: Smarter UX Flows & More Control

As you move beyond concepting, tools like Creatie and Subframe step in with more interactive design control. You can select, edit, and refine UI components directly on the canvas, which makes iterative work feel closer to how Figma or Sketch operates.

Creatie UI adds a refreshing layer of prompt intelligence to the workflow.

Unlike Galileo, which simply renders what you say, Creatie has the capability to reinterpret and clarify your prompts before generating output.

Why Subframe Stands Out:

• Adds flow awareness—it understands relationships across multiple screens.

• Offers design system compatibility for theme consistency.

• Gives designers more control over component-level edits, not just page-level prompts.

Choose Subframe for structured UX workflows, component refinement, and consistent multi-screen design flows.

The UX Efficiency Formula

As these tools evolve, the winning combination looks like this:

Efficient UX Output = (Fast Context Understanding + Streamlined Task Execution) × AI Tool Capability

The more a tool understands your intent without excessive prompting, and the better it performs focused design tasks, the more valuable it becomes

Can They Replace Figma?

Right now, most tools integrate well with Figma, but it’s not hard to imagine a near future where they become strong alternatives—especially if tools like Subframe continue to improve structured workflows, and Galileo-like tools deepen their contextual intelligence.

If Figma becomes more AI-native, it might retain its edge. But if these AI tools master contextual understanding + high-quality UI generation, they might just leapfrog ahead.

Bonus: A Prompting Template That Works

To get the best results from any of these tools, your prompt matters more than ever. Here’s a lightweight template that works well across image-based AI UI generators:

Prompt Template for UX Screen Generation

• Actual Direction as Context: What kind of interface is it?

• Concept Description: What does the screen help the user do?

• Layout: Describe the key sections (e.g., header, sidebar, cards).

• Style: If the tool doesn’t support themes, describe visual direction.

• Instructions: Any specific interactivity or behaviors?

Example Prompt:

Design a smart review card UI component for a legal contract review tool that improves efficiency in reviewing OCR-extracted contract data. Each card represents a field (like "Parties") and contains multiple AI-suggested values (e.g., “Coforge Ltd.”). Users can Accept, Edit, or Delete each value. Include a button to add missing values. Use a clean, modern design with subtle shadows and action icons.

Output screen from above prompt in subframe

Final Thoughts

The AI design space is evolving fast. Whether you’re building contract review platforms, consumer apps, or internal dashboards, choosing the right tool for the right fidelity level is key. Galileo shines in speed and creativity, while Subframe leads in precision and flow structure.

We’ll keep experimenting—and you should too