Nano Banana — Gemini Flash Image Generator
Google's Nano Banana 2 (Gemini 3.1 Flash Image) delivers Pro-level quality at Flash speed. Generate images up to 4K with accurate text rendering, maintain consistency across 5 characters and 10 objects, and tap into Gemini's real-world knowledge for accurate landmarks and details. Available available on ComfyUI Web.
Nano Banana on ComfyUI Web
Run Nano Banana models directly in your browser. Pick a variant to start generating.
Nano Banana 2 Text to Image (Gemini 3.1 Flash)
Google Nano Banana 2 (Gemini 3.1 Flash Image) delivers Pro-quality image generation at Flash speed. Supports 1K–4K resolution, 10 aspect ratios, improved text rendering, and character consistency.
Nano Banana 2 Edit (Gemini 3.1 Flash)
Google Nano Banana 2 Edit (Gemini 3.1 Flash Image) enables advanced image editing with up to 14 reference images. Supports 1K–4K output, natural language instructions, text translation within images, and subject consistency.
Nano Banana (Gemini 2.5 Image Edit)
Google's latest image editing model in Gemini 2.5. Edit images using natural language instructions.
Why Use Nano Banana
Text to Image
Generate images from text with Gemini 3.1 Flash Image quality. Complex compositions, accurate objects, and detailed environments — at speeds previously reserved for draft models.
Multi-Reference Editing
Nano Banana 2 Edit accepts up to 14 reference images for context-aware editing. Style transfer, object insertion, text translation within images, and subject-consistent modifications.
Accurate Text in Images
Renders legible text directly in generated images — posters, marketing mockups, infographics, and product labels. Supports translation of embedded text between languages.
Up to 4K Resolution
Output from 512px to 4K widescreen. trial-credit tier generates at 1K; API access unlocks 2K–4K output with 10 aspect ratio options.
100% Cloud-Based
No GPU, no Python, no local setup. ComfyUI Web runs Nano Banana on cloud GPUs — works on any device with a browser.
trial-credit tier Available
Start generating with no credit card. Free accounts receive credits that refresh regularly.
Model Snapshot
Verified from official documentation and pricing pages.
Pricing Model
Credit-based
Entry Pricing
Trial credits + paid plans
Max Resolution
4K
Max Duration
N/A
Native Audio
No
Open Source
No
API Access
Yes
Comparison Highlights
- Pricing Model: Credit-based (Trial credits + paid plans).
- Max Resolution: 4K; Max Duration: N/A.
- Open Source: No; API Access: Yes.
How to Use Nano Banana on ComfyUI Web
Generate your first image in under a minute.
Choose a Mode
Select Text to Image for generation from scratch, or Edit mode to modify existing images with up to 14 reference inputs for context.
Write Your Prompt
Describe the image in detail. Nano Banana leverages Gemini's world knowledge — reference real landmarks, products, or concepts and the model renders them accurately.
Generate & Download
Click generate. Nano Banana produces results in seconds at Flash speed. Download at full resolution in JPEG or PNG.
What Is Nano Banana?
Nano Banana is Google's consumer-facing image generation model, built on the Gemini 3.1 Flash Image architecture. The name refers to the internal codename for Gemini's image capabilities — 'Nano Banana 2' is the second generation, released February 2026.
The model sits in an unusual position: it matches the quality of Gemini Pro Image (Google's premium tier) while running at Flash speed (Google's lightweight, fast tier). This makes it one of the few models that eliminate the traditional speed-vs-quality tradeoff in AI image generation.
Key Technical Differentiators
Subject consistency is Nano Banana 2's standout capability. The model maintains visual identity of up to 5 characters and 10 objects within a single workflow — useful for storyboarding, brand content, and multi-image campaigns where elements need to look identical across outputs.
World knowledge integration sets it apart from most image generators. Because it's built on Gemini, Nano Banana pulls from the model's understanding of real-world entities. Ask it to generate the Eiffel Tower, a specific car model, or a scientific diagram, and it produces accurate representations rather than generic approximations.
All outputs include SynthID digital watermarks and C2PA Content Credentials, making AI provenance verifiable — increasingly important for commercial and editorial use.
Nano Banana vs Flux and Seedream
Flux Dev offers more community ecosystem support (LoRA fine-tuning, extensive ComfyUI integrations) and broader stylistic range. Nano Banana trades that flexibility for speed and world knowledge accuracy.
Seedream V5 leads in text rendering accuracy for Chinese characters and achieves faster inference times (2–3 seconds). Nano Banana matches or exceeds Seedream on English text rendering and offers higher maximum resolution (4K vs Seedream's 4K native).
On ComfyUI Web, all three are available free. Nano Banana is the best choice when you need accurate real-world objects, brand-consistent multi-image output, or fast generation with strong text rendering.
Frequently Asked Questions
- Is Nano Banana free to use?
- Yes. On ComfyUI Web, you get trial credits to generate images with Nano Banana. trial-credit tier outputs at 1K resolution. Paid plans unlock higher resolutions.
- What is the difference between Nano Banana and Nano Banana 2?
- Nano Banana (original) uses Gemini 2.5 Flash for image editing. Nano Banana 2 uses Gemini 3.1 Flash with significantly improved quality, 4K output, subject consistency, and text rendering.
- Can Nano Banana render text in images?
- Yes. It generates legible text for posters, labels, and infographics. It also supports translating embedded text between languages.
- What resolution does Nano Banana support?
- 512px to 4K widescreen, with 10 aspect ratio options. trial-credit tier generates at 1K; API and paid tiers support up to 4K.
- How does Nano Banana compare to DALL-E or Midjourney?
- Nano Banana matches DALL-E 3 in prompt adherence and surpasses it in generation speed. Compared to Midjourney, it offers comparable quality with API access and no subscription lock-in.
- Do I need a GPU to use Nano Banana?
- Not on ComfyUI Web. Our cloud GPUs handle all inference. You only need a browser on any device.