What is Nano Banana 2.1?
Nano Banana 2.1 is Google’s image generation and conversational editing model Improved visual quality, realism and instruction following. Better text rendering, infographic layouts and consistency across edits. 1K, 2K and 4K output, with improvements to wide and panoramic compositions.
How do I create an image?
Choose text-to-image or image-to-image, enter a prompt, and upload one reference image when editing. Select the aspect ratio, resolution and output count, then sign in to generate. Text-to-image and image editing cost 15 credits per 1K image, 20 per 2K image, and 30 per 4K image.
Is image generation free?
Sign in with enough credits. Single 1K and 2K images require no subscription. 4K requires an active Starter, Plus or Pro subscription. Batch limits depend on your plan. Text-to-image and image editing cost 15 credits per 1K image, 20 per 2K image, and 30 per 4K image. Batch totals equal the per-image price multiplied by the number of images.
Which resolution and inputs can I use now?
The workspace creates 1K / 2K / 4K images from text or one JPG, PNG or WebP reference up to 10MB. Choose Auto or a supported aspect ratio. Batch size depends on your plan.
Do I need a subscription for Nano Banana 2.1 4K images?
Sign in with enough credits. Single 1K and 2K images require no subscription. 4K requires an active Starter, Plus or Pro subscription. Batch limits depend on your plan. Text-to-image and image editing cost 15 credits per 1K image, 20 per 2K image, and 30 per 4K image. Batch totals equal the per-image price multiplied by the number of images.
What happens if I stop waiting?
Stopping the wait does not cancel a task already submitted or automatically refund credits. The task may continue in the background. Check My Creations or return to this workspace to recover its status before submitting again.
Does Nano Banana 2.1 add a watermark?
Google states that images generated by its Gemini image models include invisible SynthID to identify AI-generated content. SynthID is not normally a visible overlay, but it means Nano Banana 2.1 results should not be described as watermark-free.
Can I use Nano Banana 2.1 images commercially?
Commercial use depends on the rights attached to your prompt, reference image, subjects, brands, and intended market, as well as the applicable service terms and law. Review CubistAI's terms before publishing or selling a result; this page does not provide a blanket license or legal advice.
How do I write better Nano Banana 2.1 prompts?
Describe the subject, composition, style and lighting. Put exact poster text in quotes. For photo editing, state what should change and what must stay the same. Select resolution with the image controls, then refine one detail at a time.
Should I choose 1K, 2K or 4K?
Use 1K to test composition, lighting and prompt changes before spending more credits. Use 2K for product images, social posts and presentations that need more detail than a draft. Use 4K when you need a larger image for detailed layouts or further editing. Check fine text before publishing.
What if I run out of credits in Nano Banana 2.1?
When your balance cannot cover the selected generation, clicking Generate opens the credit purchase dialog with the 1,000-credit pack selected. You can choose another pack. Your prompt, reference image and settings stay in the workspace; continue after the balance updates. A credit pack does not unlock 4K without an active subscription.