Last updated: May 2026
Google's flagship image model in the Nano Banana family — 4K-ready hero frames with strong character continuity. Compare it with Stable Diffusion XL: Stability AI's open-weights image model — the foundation of the open-source image ecosystem, ComfyUI, A1111, and the LoRA / fine-tune economy.
| Nano Banana Pro | Stable Diffusion XL | |
|---|---|---|
| Price | $20/month | Free |
| Type | Closed source | Open source |
| Free Option | No | Yes |