Z-Image

Z-Image is a free online AI image generation service built on the z-image open-source model. It’s designed for quick results and flexible creative workflows, with tools like prompt switching and an image-focused generator experience.

Create images using prompts, with support for long input (up to 1000 characters). If you’re working with structured prompt formats (including JSON-style prompts), you can use Nano Banana models for long, structured prompt needs.

Z-Image also offers a curated prompt library with daily community picks and examples across different styles and subjects. You can further enhance your results using selected LoRA models and trigger words, plus workflow tools like background removal and upscaling for post-generation refinement.

Is Z-Image actually free to use?

Yes—Z-Image is positioned as a truly free AI image generation service for creating images in the browser.

How long can my prompt be on Z-Image?

Z-Image supports prompts up to 1000 characters.

Can I use structured JSON prompts on Z-Image?

Yes. For long structured JSON prompts, use Nano Banana models to handle extended structured input.

Does Z-Image support LoRA models and trigger words?

Yes. You can explore a LoRA library and apply models using trigger words to steer style or character traits.

Where can I find prompt ideas to start quickly?

Use the curated prompt library, which includes daily picks from the community and a range of example prompt styles.

What tools are available after generation?

Z-Image includes additional tools such as image upscale and remove background, plus other image workflow utilities.