Create a wordless editorial visual explainer of a compact heat pump with clean arrows, blank callout shapes, and a balanced magazine layout. Do not include any visible text, letters, numbers, labels, logos, or watermarks.
Nano Banana Pro Text to image API
Nano Banana Pro is Google's premium image generation and editing model for text-rich visuals, product mockups, localized campaign assets, and reference-guided creative work.
The playground keeps the public request shape aligned with sjolt's Comfy contract: prompt, optional reference images for image editing, aspect_ratio, and resolution.
Pricing
Resolution pricing
4K output uses the higher Nano Banana Pro rate.
- 1K image
- $0.10
- 2K image
- $0.10
- 4K image
- $0.21
Playground Examples
Try production-style prompt starters.
Create a premium skincare campaign product scene with a frosted serum bottle, soft studio lighting, elegant negative space, and abstract set design. Do not include any visible text, letters, numbers, labels, logos, or watermarks.
Create a high-end packaging mockup for a sparkling botanical drink with a blank abstract botanical label, condensation, and a retail-ready studio scene. Do not include any visible text, letters, numbers, labels, logos, or watermarks.
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Model overview
Nano Banana Pro for text-rich image generation and professional creative assets
Nano Banana Pro brings Google premium image generation to sjolt for text-to-image creation and image editing. Use it for readable visual copy, labeled diagrams, localized campaign drafts, product mockups, brand systems, and 1K to 4K production assets.
Diagrams and visual explanations
Create structured explainers, product documentation visuals, and infographic drafts with clean arrows, callout space, and controlled composition.
- Supports Text to image and reference-asset generation workflows.
- Fits product assets, ad previews, visual direction, and social content tests.
- Adjust configured inputs, media, and switches before generation.
Reference-guided product and brand work
In sjolt image-edit workflows, upload up to 6 reference images to preserve product form, style cues, or brand direction while changing scene, lighting, and composition.
Prompt-led generation
Delivery-ready aspect ratios and resolutions
Generate auto, 21:9, 16:9, 4:3, 3:2, 1:1, 2:3, 3:4, 9:16, or 9:21 frames, then choose 1K, 2K, or 4K output.
- Compare available models from Google, OpenAI, ByteDance, Kuaishou in one place.
- Copy the request body directly to the server to reduce frontend/backend parameter drift.
- Failure states, retries, result preview, and review checkpoints stay in the same workflow.
Model characteristics
Built for Nano Banana Pro generation, reference-guided editing, and predictable delivery.
Text-to-image generation
Create polished product scenes, campaign visuals, diagrams, packaging mockups, and brand concepts from a single prompt.
Image editing with references
Upload up to 6 images to preserve product form, style cues, composition, and lighting while changing the final scene.
Aspect-ratio control
Generate auto, 21:9, 16:9, 4:3, 3:2, 1:1, 2:3, 3:4, 9:16, or 9:21 frames for different delivery channels.
Resolution control
Choose 1K or 2K for everyday outputs, or 4K when the asset needs extra detail.
FAQ
These are the first questions to answer when evaluating this model.
What is Nano Banana Pro?
Nano Banana Pro is Google's premium image generation and editing model, publicly described as Gemini 3 Pro Image. On sjolt it is available for text-to-image and image-edit tasks.
When should I choose Nano Banana Pro instead of Nano Banana 2?
Use Nano Banana Pro when readable text, diagrams, product mockups, localization, or polished brand assets matter most. Use Nano Banana 2 when simpler high-volume image generation is sufficient.
What inputs does sjolt expose for Nano Banana Pro?
Text-to-image uses prompt, aspect_ratio, and resolution. Image-edit also accepts image_urls with up to 6 reference images. sjolt does not expose provider routing, model routing, or web search controls for this model.
Which aspect ratios and resolutions are supported?
Nano Banana Pro supports auto, 21:9, 16:9, 4:3, 3:2, 1:1, 2:3, 3:4, 9:16, or 9:21 aspect ratios. Resolution can be 1K, 2K, or 4K.