--- title: "Nano Banana Pro: Specs, Strengths & Prompt Tips | imaginary.app" description: "Nano Banana Pro (Gemini 3 Pro Image) is Google’s reasoning image model for dense text, infographics and 4K output. How it differs from Nano Banana 2." url: https://www.imaginary.app/models/nano-banana-pro --- Updated November 2026 # Nano Banana Pro (Gemini 3 Pro Image) Nano Banana Pro is Google’s Gemini 3 Pro Image model, built on Gemini 3 Pro and announced November 20, 2025. Its strength is reasoning-heavy images: long, correctly spelled text, infographics and diagrams that depend on real-world knowledge, at up to 4K. Key takeaways - Built on Gemini 3 Pro; Google called it its most advanced image generation and editing model at launch. - Renders text from short taglines to long paragraphs, in multiple languages, per Google. - Always reasons before it draws: thinking is on at Google’s “high” level and cannot be disabled. - Google’s own guidance: choose Pro for high-fidelity tasks needing maximum factual accuracy, and Nano Banana 2 for speed. Google Generate with Nano Banana Pro Write a prompt, pick Nano Banana Pro, choose your settings and see the credit cost before you start. Failed generations return their credits. [Open the generator](https://www.imaginary.app/generate)[View Pricing](https://www.imaginary.app/pricing) Sign in with Google to create an account; buy credits only when you need them. ## On imaginary.app These are the settings our generator offers for Nano Banana Pro right now, read from our live model catalog. - Type Image, from a text prompt - Resolutions 1K, 2K, 4K - Aspect ratios 16:9, 9:16, 1:1 - Starting price 1.18 credits (about $0.25–$0.29) at the lowest settings (1K, 16:9) The generator shows the exact credits for your settings before you start. USD ranges depend on which [pack or plan](https://www.imaginary.app/pricing) you bought credits with. If a generation fails, or you cancel it before it starts, its credits go back to your balance. Very rarely, when we can't confirm with the provider whether a generation finished, the credits stay reserved while we check, rather than being charged. Models other than Veo 3.1 need an account that has bought a credit pack or plan, and they have daily usage limits, per account and across the site: if one is reached, the generator tells you and you can try again the next day (limits reset at midnight UTC). ## Text that holds up at paragraph length Google says Nano Banana Pro handles “both short taglines and long paragraphs”, in multiple languages, and can translate or localise existing text. Its Gemini API entry describes it as the premium choice for rendering high-fidelity text. That opens up text-heavy formats: a recipe card with ingredient lists, a menu, a labelled product sheet or a slide-style explainer. ## Infographics grounded in world knowledge Because it is built on Gemini 3 Pro, the model can draw on what Gemini knows. Google highlights context-rich infographics and diagrams made from supplied content or real-world facts, such as a labelled cross-section or a step-by-step process. Give it the content and it lays it out; you are not limited to describing shapes. ## Heavier reasoning than Nano Banana 2 Both are Gemini 3 thinking models, but they sit at different points. Nano Banana 2 lets developers choose a minimal or high thinking level; Pro runs only at high. Google’s API docs describe Pro as “the premium choice for complex visual tasks, utilizing advanced reasoning” to follow complex instructions and keep brand consistency. The trade-off is speed: Google pitches Nano Banana 2 as Pro-level output at Flash speed, so Pro is the slower of the two. ## Nano Banana Pro specs from Google What Google and its API partners document for the model itself. A maker spec is not always a setting our generator offers: what you can choose on imaginary.app is listed in the block above. | Spec | As documented | Source | | ------------------------------------- | -------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------- | | Release | Announced November 20, 2025 | [Google blog — Nano Banana Pro announcement, November 20, 2025](https://blog.google/technology/ai/nano-banana-pro/) | | Official model name | Gemini 3 Pro Image (\`gemini-3-pro-image\`), stable in the Gemini API; built on Gemini 3 Pro | [Google AI Studio docs — Gemini 3 Pro Image model page](https://aistudio.google.com/docs/models/gemini-3-pro-image) | | Resolutions | 1K, 2K and 4K | [fal — Nano Banana Pro API schema](https://fal.ai/models/fal-ai/nano-banana-pro/api) | | Text rendering | Short taglines to long paragraphs, multiple languages; can translate and localise text | [Google blog — Nano Banana Pro announcement, November 20, 2025](https://blog.google/technology/ai/nano-banana-pro/) | | Reasoning | Thinking model; only the “high” level is supported and thinking cannot be disabled | [fal — Nano Banana Pro API schema](https://fal.ai/models/fal-ai/nano-banana-pro/api) | | Reference images (maker) | Up to 14 input images, keeping the resemblance of up to 5 people | [Google blog — Nano Banana Pro announcement, November 20, 2025](https://blog.google/technology/ai/nano-banana-pro/) | | Interleaved output (maker API) | Can return stories or guides that mix text blocks and illustrations in one response | [Google AI Studio docs — Gemini API image generation](https://aistudio.google.com/docs/image-generation) | | Provenance | Invisible SynthID watermark on all generated images | [Google AI Studio docs — Gemini API image generation](https://aistudio.google.com/docs/image-generation) | | Google’s positioning vs Nano Banana 2 | Pro for high-fidelity tasks that require maximum factual accuracy | [Google blog — Nano Banana 2 announcement (Pro vs 2 guidance)](https://blog.google/innovation-and-ai/technology/ai/nano-banana-2/) | ## Who Nano Banana Pro is for ### Good fit - Infographics, explainers and labelled diagrams with real content. - Posters, menus, packaging and slides where more than a headline of text must be correct. - Localised marketing assets in several languages. - Hero images where lighting, lens and colour grade are specified precisely. ### Look elsewhere if - High-volume drafting or simple images; Nano Banana 2 or FLUX Schnell are faster for that. - Editing your own photos or combining reference images; on imaginary.app this model is text-to-image only. - Use cases that need output without an invisible AI watermark: Google applies SynthID to every image. ## Prompt tips for Nano Banana Pro Explain the purpose of the image, not only its contents. Google’s prompting advice says context and intent (“a logo for a high-end, minimalist skincare brand”) shape the result, and Pro’s reasoning makes good use of it. Example prompt (written by us) ``` An infographic for a cooking blog explaining how to make cold brew coffee in four steps, clean flat illustration style, each step numbered with a short caption: "1. Grind coarse", "2. Add cold water", "3. Steep 16 hours", "4. Strain and serve". Title at the top: "Cold Brew at Home" ``` Write the exact copy yourself and quote it. Google’s docs note that Gemini renders text more reliably when the wording is decided before the image is requested, so don’t ask the model to invent the words. Example prompt (written by us) ``` A bistro chalkboard menu photographed straight on, white chalk lettering, heading "Today’s Specials", then three lines: "Roast squash soup", "Steak frites", "Lemon tart", small doodles of herbs in the corners, warm restaurant light ``` Break complex scenes into steps. Google suggests building the prompt in order: background first, then foreground objects, then the focal detail. Use studio language for photoreal shots. Google highlights control over camera angle, focus, colour grading and lighting, so name the light source and direction, lens, depth of field and grade. Example prompt (written by us) ``` Studio product photo of a hardcover notebook in forest green linen, three-quarter angle, softbox key light from the upper left, 85mm lens, shallow depth of field, subtle teal-and-orange grade, seamless grey backdrop ``` ## Limitations - Slower than Nano Banana 2, so it is overkill for simple pictures. - Google’s Search grounding, reference images and conversational edits are maker features not included in imaginary.app’s text-to-image integration; facts come from the model’s own knowledge and your prompt. - Long text is much improved but still worth proofreading line by line, especially numbers and names. - Every image carries Google’s invisible SynthID watermark. - Nano Banana Pro is made by Google; imaginary.app is not affiliated with Google. ## Related models - [Nano Banana 2](https://www.imaginary.app/models/nano-banana-2) - [Ideogram 4.5](https://www.imaginary.app/models/ideogram-4-5) - [FLUX.2 Pro](https://www.imaginary.app/models/flux-2-pro) - [Every model on imaginary.app](https://www.imaginary.app/models) - [AI image generator overview](https://www.imaginary.app/ai-image-generator) ## Frequently asked questions ### Nano Banana Pro vs Nano Banana 2: which should I use? Use Nano Banana Pro (Gemini 3 Pro Image) for dense text, infographics and work where factual accuracy matters; Google recommends it for high-fidelity tasks. Use Nano Banana 2 (Gemini 3.1 Flash Image) for faster everyday images and precise instruction following. ### Is Nano Banana Pro free? Not as the everyday choice in Google’s apps. In February 2026 Google said Nano Banana 2 would replace Nano Banana Pro across the Gemini app’s Fast, Thinking and Pro models, and that Google AI Pro and Ultra subscribers keep Pro for specialised tasks by regenerating an image from the three-dot menu. On imaginary.app it uses credits. ### What resolution does Nano Banana Pro support? Google and fal document 1K, 2K and 4K outputs. The resolutions offered on imaginary.app are listed in the block on this page. ### Can Nano Banana Pro write long text in images? Yes, that is its standout feature. Google says it renders short taglines through long paragraphs in multiple languages. Quote the exact wording in your prompt and proofread the result. ### Do Nano Banana Pro images have a watermark? All images from Google’s image models include an invisible SynthID watermark. Google’s visible Gemini sparkle watermark applies in its own apps on some plans; it is a Gemini app policy, separate from SynthID. ## Sources Prices, model specs and dates on this page were checked on November 10, 2026. Third-party prices change; check the source before you rely on a number. - [Google blog — Nano Banana Pro announcement, November 20, 2025](https://blog.google/technology/ai/nano-banana-pro/) - [Google blog — Nano Banana 2 announcement (Pro vs 2 guidance)](https://blog.google/innovation-and-ai/technology/ai/nano-banana-2/) - [Google AI Studio docs — Gemini API image generation](https://aistudio.google.com/docs/image-generation) - [Google AI Studio docs — Gemini 3 Pro Image model page](https://aistudio.google.com/docs/models/gemini-3-pro-image) - [fal — Nano Banana Pro model page](https://fal.ai/models/fal-ai/nano-banana-pro) - [fal — Nano Banana Pro API schema](https://fal.ai/models/fal-ai/nano-banana-pro/api) - [imaginary.app pricing](https://www.imaginary.app/pricing) How we checked: model specs come from Google's and its API partners' pages listed above; the imaginary.app settings and starting price come from our live model catalog. Example prompts are ours, not Google's. Commercial use: licence and usage terms for Nano Banana Pro are set by Google. Check them, and our [Terms of Service](https://www.imaginary.app/terms-of-service), before you publish what you make. Google ## Try Nano Banana Pro on your own prompt One account and one credit balance for Nano Banana Pro, every other image model we offer, and Veo 3.1 video. The price shows before you generate. [Open the generator](https://www.imaginary.app/generate)[View Pricing](https://www.imaginary.app/pricing) Sign in with Google to create an account; buy credits only when you need them.