Image generation

Nano Banana Pro (Gemini 3 Pro Image)

Name: Nano Banana Pro (Gemini 3 Pro Image)
Author: Google

Google's premium image generation and editing model, model ID gemini-3-pro-image, built on Gemini 3 Pro and announced 20 November 2025. It generates at 1K, 2K and 4K, renders legible multilingual text, can blend up to 14 reference images while holding likeness for up to 5 people, and can ground generations with Google Search.

An image model by Google · read 2026-08-14 · sourcing high

Resolution: 4K (1K / 2K / 4K output options)
Weights: Not released
API: Yes
Commercial use: Not established

All outputs carry an imperceptible SynthID watermark.

Commercial use — Not established

The research notes for this model record other terms but do not state a commercial-use position, and no licence page was retrieved, so it is not established here. Check the vendor's own terms.

Output is watermarked. Visible Gemini sparkle watermark is applied on free and Pro consumer tiers; Ultra subscribers and API users can produce images without the visible watermark, but SynthID remains embedded

The conditions above were extracted from the licence notes recorded during research, and each one shows the sentence it came from so you can check the reading. Read the licence before you rely on any of this. Nothing on this page is legal advice, and this site does not tell you a model is cleared for commercial use.

Specification

Vendor figures, read 2026-08-14Read from Google's own documentation on 2026-08-14. Vendors change these between model versions without announcing it, so check theirs before you commit a shot to a number. Sourcing for this entry is strong: the figures came from pages we retrieved and read. Check the vendor's current documentation

What it takes in: text, image
What it makes: image, text
Maximum resolution: 4K (1K / 2K / 4K output options)
Aspect ratios: not established
Controls: editing-by-instruction, image-to-image, reference-character-consistency, style-reference, text-rendering, inpainting
Weights: Not released
API: Yes
Pricing: per image: $0.134 for 1K/2K, $0.24 for 4K; Batch API $0.067 (1K/2K) and $0.12 (4K)
Released or updated: 2025-11-20

Supported aspect ratios is not established here. That means no page we could retrieve stated it, not that the model lacks one.

Strengths

Best-documented text rendering plus true 4K output
Up to 14 reference images and multi-person likeness consistency
Search grounding and a 'thinking' pass for complex composition briefs

Weaknesses

Most expensive Gemini image tier, especially at 4K
SynthID watermarking is always embedded
Aspect-ratio list is only documented explicitly for the Flash Lite sibling

Best for

Print-resolution key art, infographics and text-heavy marketing frames that need legible typography.

Where the sources disagree

Recorded rather than resolved. Picking the tidier number would hide the fact that the vendor's own pages do not agree.

Google's image-generation docs list the supported aspect-ratio set (1:1, 3:2, 2:3, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 21:9) under the Gemini 3.1 Flash Lite Image entry only. We did not assert it for gemini-3-pro-image.

What to understand before using it

Explainers naming the mechanisms this model's own documentation mentions.

Character and set consistency: the weakest link names “consistency”
Temporal consistency: flicker, drift and morphing names “consistency”

How to prompt it

Written for Nano Banana Pro (Gemini 3 Pro Image). See prompt craft for the full vocabulary and cinematic language for the lens, light and mood tables.

Nano Banana Pro prompt guidance
Harder briefs where Nano Banana 2 falls short; the main thumbnail render; photoreal and reference-driven website imagery; deriving multiple angles of one approved product so every view is recognizably the SAME product.

For thumbnails, run at explicit 4K with the long multi-block prompt written to a file and piped on stdin; face photos first in character order, then the logo.

MCP servers that front Google

Servers in the media MCP directory whose own description or homepage names this vendor. Absence of a server here is not evidence that none exists: most publish no tool list at all.

AI HomeDesign MCP Image generation
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Adclip Image generation
Ad creative generation via MCP, copy and static images from a JSON brief. Keyless.
Aetherwave Music
Music, image, video and audio generation across top AI providers - one key, one credit pool.
ArkRoute, Visual AI API Gateway Image generation
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Avocado AI Image generation
Generate AI images, videos, music, SFX & speech in any AI assistant. Results appear inline in chat.
BananaBanana Image & Video Generation Video generation
Generate images & video (Nano Banana, Veo, Omni) pay-as-you-go. No subscription, crypto payments.

See it from the vendor

Shotcraft hosts no sample output. Judging a model means watching its own showreel with your own eyes, and a clip re-hosted here would be a clip we chose.

Nearby in the directory

Nano Banana 2 (Gemini 3.1 Flash Image)

Google's workhorse image model, model ID gemini-3.1-flash-image, described in the docs as the most versatile generalist of the Nano Banana line and th

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Imagen 4 (Fast / Standard / Ultra)

Google's standalone dedicated text-to-image family (imagen-4.0-fast-generate-001, imagen-4.0-generate-001, imagen-4.0-ultra-generate-001), offering 1K

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Adobe Firefly Image Model 5

Adobe's current Firefly image model, announced in public beta at Adobe MAX on 28 October 2025, generating at native 4 MP resolution without an upscale

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Sources

Read on 2026-08-14. A source that has changed since then will not be reflected here until the next pass.