ViviNova AI Image Generator

ViviNova (Vivid + Nova) AI image generator transforms your text prompts into stunning, vivid visuals instantly. Create social media graphics, marketing content, or creative artwork — no design skills needed.

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Nano Banana familyby Google

Nano Banana Pro — World Simulator Rendering at 4K

Generate studio-quality 4K images with Nano Banana Pro. Gemini 3 Pro World Simulator builds 3D scenes before rendering for physics-accurate output.

How the World Simulator Changes Image Generation

Most AI image generators convert text to pixels in a single pass. Nano Banana Pro does not. Gemini 3 Pro inserts a Reasoning Pause — a 3-5 second window where the model constructs an internal 3D representation of the scene before producing a single pixel.

During this pause, the World Simulator:

Calculates light physics — how light refracts through transparent objects (glass, water), how it reflects off metallic surfaces, how shadows fall at the specified time of day
Simulates material properties — the difference between matte paper, glossy ceramic, brushed aluminum, and weathered wood, rendered as they would appear under the scene's lighting
Resolves spatial relationships — "laptop on the left, coffee mug on the right, window behind" renders as described because the 3D model enforces object positions before rendering
Handles causal logic — a candle in a dark room produces illumination that falls off with distance; rain on a street produces reflections; wind affects hair and fabric direction

The result is output that looks physically coherent in ways that single-pass models cannot match. The trade-off is time: 8-12 seconds per image vs ~3 seconds for Nano Banana and 4-6 seconds for Nano Banana 2.

World Simulator Engine

3-5 second Reasoning Pause builds a 3D scene with physics-accurate lighting, materials, and spatial relationships

~94-96% Text Accuracy

The highest text rendering accuracy in the Nano Banana family — product labels, signs, and book covers render legibly

11 Reference Images

6 object fidelity slots + 5 character consistency slots for brand-guided and character-consistent generation

Up to 4K Output

Native 4K generation (4096px) for print production, large-format display, and crop-heavy workflows

The Reference Image System: Objects vs Characters

Nano Banana Pro accepts up to 11 reference images per prompt, split into two distinct slot types that the model processes differently.

Object Fidelity Slots (up to 6)

Object references preserve the visual identity of things — products, logos, environments, props, brand assets. When you upload a product photo as an object reference, the model anchors:

Exact color values and surface textures
Shape proportions and distinctive features
Material properties (matte vs glossy, transparent vs opaque)

Use case: product photography. Upload 2-3 angles of a product. Prompt for different lifestyle settings — "on a marble kitchen counter," "held outdoors," "arranged with seasonal props." The World Simulator renders each scene with accurate lighting that matches the setting, while the object reference ensures the product itself remains visually identical across outputs.

Character Consistency Slots (up to 5)

Character references preserve identity — face, body proportions, hairstyle, clothing style. The model distinguishes character traits from background context, so a character photographed in a studio will generate correctly in an outdoor scene.

Use case: character series. Upload 3-4 views of a character (front, three-quarter, profile). Generate that character in new poses, environments, and lighting conditions. The character reference system maintains facial features and build across outputs — critical for illustration series, brand mascots, and game art pipelines.

Why the Slot Separation Matters

Without slot types, reference images are ambiguous. Is that photo of a person in a red jacket a character reference (preserve the person) or an object reference (preserve the jacket)? Pro's slot separation resolves this: upload the person as a character reference and the jacket as an object reference, and the model knows which visual properties to anchor.

When the Reasoning Pause Justifies the Wait

The 8-12 second generation time is a genuine trade-off. For rapid iteration, Nano Banana at ~3 seconds or Nano Banana 2 at 4-6 seconds is faster. Pro is worth the wait in specific scenarios:

Text in images. Product labels, storefront signs, book covers, event posters — any image containing readable text. At ~94-96% accuracy, Pro renders text legibly far more often than Nano Banana 2 (~90%) or Nano Banana (~80%). For marketing materials where a misspelled product name means regenerating, the accuracy difference saves time net.

Complex lighting setups. Studio photography with multiple light sources, architectural interiors with window light mixing with artificial light, outdoor scenes at golden hour — the World Simulator calculates light interactions rather than approximating them. The difference is visible in how shadows fall across multiple surfaces and how reflective materials behave.

Precise spatial compositions. "Three products arranged left to right by size, soft gradient background, key light from upper left" — prompts with multiple positional constraints. The 3D scene construction enforces spatial relationships that single-pass models frequently scramble.

Brand consistency across a campaign. When you need 20 images that share the same visual language — color palette, lighting character, compositional style — the reference system plus World Simulator reasoning produces more cohesive sets than any other Nano Banana tier.

Pro Tips for World Simulator Prompts

Let the World Simulator do the physics. Instead of describing lighting in vague terms ("dramatic lighting"), describe the light source and let the model simulate the result: "single spotlight from upper left, white background, product casting hard shadow to the right." The World Simulator will calculate the shadow angle, falloff, and edge softness.

Use character and object slots deliberately. Do not put all references in one slot type. A product shot with a model holding it should have: the product in object slots (preserving its appearance) and the model in character slots (preserving their face and build). Misassigning slots produces correct but unintended anchoring.

Front-load complex prompts. The Reasoning Pause processes your entire prompt before rendering. Put the most important spatial and compositional instructions first. "Three glass bottles on a reflective black surface, tallest in center, camera angle 30 degrees above, soft rim lighting" gives the World Simulator clear geometric constraints to build from.

Reserve Pro for final delivery, not exploration. Use Nano Banana at ~3 seconds to explore prompt directions. Once you have a composition you like, switch to Pro for the final generation with full World Simulator reasoning and 4K output.

FAQ

Before rendering pixels, Gemini 3 Pro builds an internal 3D representation of the scene. During a 3-5 second Reasoning Pause, it calculates light physics (refraction, reflections), gravity, fluid dynamics, material properties, and object proportions. The image is then rendered from this 3D model — not directly from the prompt. This is why Pro achieves ~94-96% text rendering accuracy and produces the most physically coherent output in the family.

3-5 seconds are the Reasoning Pause (World Simulator scene construction) and 5-7 seconds are actual pixel generation at up to 4K. The reasoning step is not optional — it always runs. If you need adjustable speed/quality tradeoffs, Nano Banana 2's thinking_config lets you choose reasoning depth per generation.

Object fidelity slots (up to 6) preserve the visual identity of objects — products, logos, environments, props. Character consistency slots (up to 5) preserve face, build, and styling of people or characters across different poses and settings. The model treats these differently: object references anchor visual properties, character references anchor identity.

Pro achieves ~94-96% text rendering accuracy vs Nano Banana 2's ~90%. Pro's World Simulator produces more physically accurate lighting (refraction, metallic reflections) and spatial coherence. However, Nano Banana 2 with thinking_config set to 'high' approaches Pro quality at roughly 37% lower cost at 4K.

Yes. All images generated with Nano Banana Pro on ViviNova are cleared for commercial use with no additional licensing.