
Each generation of Nano Banana (Gemini 2.5 Flash Image) costs 200 credits in Promptus. That's equivalent to $0.20 per image.
What is Nano Banana?
Nano Banana is Google’s internal codename for Gemini 2.5 Flash Image—a fast, capable image model that does natural-language edits, multi-image fusion, character consistency (keeping the same person/mascot across shots), and world-aware tweaks. Outputs include invisible SynthID watermarking for provenance. It’s excellent for everyday creative work: cleaning up photos, compositing, style-matching, and more.
Why use it on Promptus? Because Promptus is a single web interface where you can generate & edit with Nano Banana, organize results in Collections, publish a gallery, and even expand your visuals into video and music—without juggling extra tools or export
Plans & what you get
Free Trial — 1,000 credits (one-time)
- Great for first impressions.
- Images included: 5 (at 200 credits/image).
- Try Collections (private organization) and a basic public gallery.
Artisan — $5 / month (5,000 credits/month)
- Practical for occasional creators.
- Images included each month: 25.
- Access to Promptus Web + core features (model picker, Collections, publishing).
Designer — $25 / month (25,000 credits/month)
- Best for steady creators and teams.
- Images included each month: 125.
- Advanced gallery tools (branding, custom pages/microsites, custom domain/WordPress gallery options, etc.).
One-Time License — $49 (desktop app + 10,000 bonus credits)
- Unlimited local image/video generation on your own machine (desktop app).
- The 10,000 bonus credits are a cloud pool you can spend as you wish.
- Images from bonus credits: 50 (one-time).
Heads-up: If you ever see a different credit allowance for Designer in your dashboard, just divide that number by 200 to get the monthly image count.
200 credits per Nano Banana image; 1,000 credits ≈ $1.
| Plan | Credits included | Images @ 200 credits | Leftover credits | Effective $/image |
|--------------------------|-----------------:|---------------------:|-----------------:|------------------:|
| Free Trial (one-time) | 1,000 | 5 | 0 | — |
| Artisan ($5/mo) | 5,000 | 25 | 0 | ~$0.20 |
| Designer ($25/mo) | 25,000 | 125 | 0 | ~$0.20 |
| One-Time License (bonus) | 10,000 | 50 | 0 | — |
Earn more credits by sharing your GPU
If you enable compute-sharing, Promptus can schedule safe workloads to your GPU when you’re idle:
- Toggle on/off anytime in the app.
- Credits accrue automatically while you share.
- Spend those credits on Nano Banana images, video jobs, and other platform features.
- This helps power an ecosystem with hundreds of AI models (image, video, audio/music, utilities)—and rewards you for participating.
What you can do with Nano Banana on Promptus (examples)
- Cleanup & polish: “Remove the coffee stain, keep fabric texture; slightly warm the lighting.”
- Character consistency: “Keep this person identical; generate three scenes (office, café, beach) with different outfits.”
- Fusion: “Place the red mug from image A into scene B near the keyboard; match color temperature and shadows.”
- Diagram to design: “Turn this hand-drawn floor plan into a clean, labeled top-down layout.”
- Scene variations: “Give me three styles of the same room: Scandinavian minimal, warm rustic, neon cyberpunk.”