Faster Renders Less Credits
Explore more design options faster - with tighter control over your input in Fenestra.

Shaun McCallum
January 26, 2026You can now generate architectural renders faster, with tighter control over your input - without burning through credits!
Flux Klein is now live on Fenestra, designed for rapid sketch-to-render workflows where speed, structure, and iteration matter.
Available in 4b and 9b, it gives you a simple way to balance creative exploration with precise adherence to your drawings.
What this unlocks:
- Faster renders for early concepts and client visuals
- Megapixel control to dial between loose exploration and strict input accuracy
- Lower credit usage so you can test more directions
- Reliable sketch → render with strong spatial intent
- Illustrative or realistic outputs, depending on what the project needs
Examples:
- AI Tools for Architects & Interior Designers see what’s possible in Fenestra
- Sketch → Render in Minutes A core workflow
- Create Consistent Views Multiple views from one image
Try it yourself in Fenestra.
Render in a Second
Create Faster!Related Articles

One room, many realities
A controlled AI architectural rendering workflow for exploring lighting, materials, and mood without losing the underlying interior design.

Introducing New Drawing Styles!
Brand new AI styles in Fenestra, including marker, crayon, ink, pastel, stipple, loose pencil and many more. Create renders that represent you.

Edit Area Is Unlimited!?
Learn how to edit images with AI in Fenestra using prompts, sampled textures and reference images while preserving fine details in 4K and 8K.





