Pro-Level Quality at Flash Speed with Native 4K
Generate stunning 4K images with Nano Banana 2 API, powered by Gemini 3.1 Flash Image. Pro-level quality, Flash-speed generation, search grounding, and character consistency in a single model.
Starting from $0.045/image
Same model, same quality — at a fraction of the cost
| Provider | Price / Image |
|---|---|
Google Official | $0.045 |
Google Batch API | $0.023 |
Kie.ai | $0.040 |
fal.ai | $0.050 |
Replicate | $0.050 |
OpenRouter | $0.045 |
AI AND APIBest Price | $0.045 |
* All providers access the identical Gemini 3.1 Flash Image model on Google's infrastructure. Prices shown are for standard 1K-2K resolution.
Key capabilities that set Nano Banana 2 apart
Generate images at up to 4K resolution natively — no upscaling needed. Also supports 512px low-latency mode for rapid iterations in development pipelines.
Delivers approximately 95% of Nano Banana Pro's visual quality at 4-6 seconds per image (1K). Vibrant lighting, richer textures, and sharper details without sacrificing speed.
Nano Banana 2's exclusive feature: real-time web search during generation. The model retrieves current information and reference images from Google Search to accurately render specific subjects, reducing hallucination.
Maintain visual resemblance for up to 5 characters and fidelity of 10 objects in a single workflow. Perfect for storyboarding, narrative creation, and building consistent visual stories.
Complete specs for the Gemini 3.1 Flash Image model
| Underlying Model | Gemini 3.1 Flash Image (gemini-3.1-flash-image-preview) |
| Generation Speed | Fast (4-6s at 1K, 15-30s at 4K) |
| Output Resolution | 512px, 1K, 2K, 4K (native) |
| Supported Aspect Ratios | 1:1, 2:3, 3:2, 3:4, 4:3, 4:5, 5:4, 9:16, 16:9, 21:9, 4:1, 1:4, 8:1, 1:8 |
| Text Rendering | Excellent (improved spacing & formatting) |
| Multi-Turn Editing | Supported |
| Search Grounding | Supported (exclusive feature) |
| Character Consistency | Up to 5 characters + 10 objects per workflow |
| Quality vs Pro | ~95% of Pro quality at 75% lower cost |
| Input Formats | PNG, JPEG, WEBP, HEIC, HEIF |
| SynthID Watermark | Yes (invisible digital watermark) |
| Official Price (1K-2K) | $0.045/image |
| Official Price (4K) | $0.151/image |
Nano Banana 2 is the community name for Google's Gemini 3.1 Flash Image model (gemini-3.1-flash-image-preview). Built on the Gemini 3.1 Flash architecture, Nano Banana 2 serves as the high-efficiency counterpart to Gemini 3 Pro Image, combining Pro-level visual quality with Flash-speed generation.
Nano Banana 2 has replaced the original Nano Banana Pro as the default image model in the Gemini app, Google Search (AI Mode), Google Lens, and the Flow creative studio — a testament to its remarkable quality-to-speed ratio. It sits in a remarkable sweet spot: approximately 95% of Pro's visual quality at significantly higher speed and half the API cost.
Nano Banana 2 introduces Image Search Grounding, an exclusive feature not available in the original Nano Banana. During image generation, the model connects to Google Search in real time to retrieve current information, reference images, and visual context. This means Nano Banana 2 can:
Search grounding is particularly valuable for applications requiring precise representations, such as biological diagrams, historical maps, or product visualizations based on real items.
Nano Banana 2 maintains visual resemblance for up to 5 characters and the fidelity of up to 10 objects in a single workflow. This is critical for storyboard creators and visual storytelling — you can generate a series of images where characters maintain their appearance across different scenes, poses, and environments without drifting in appearance.
Nano Banana 2 supports production-ready output at multiple resolution tiers:
Beyond the standard 10 aspect ratios, Nano Banana 2 adds 4:1, 1:4, 8:1, and 1:8 ultra-wide ratios — perfect for marketing banners, cinematic panoramas, and social media covers that require non-standard dimensions.
| Feature | Nano Banana 2 | Nano Banana Pro |
|---|---|---|
| Speed (1K) | 4-6 seconds | 10-20 seconds |
| Speed (4K) | 15-30 seconds | 30-60 seconds |
| Quality vs Pro | ~95% of Pro | Highest quality |
| Price (1K-2K) | $0.045 | $0.134 |
| Search Grounding | Yes (exclusive) | Yes |
| Ultra-Wide Ratios | 4:1, 8:1 | No |
| 512px Mode | Yes | No |
| Best For | Balanced quality & speed | Studio-grade professional work |
For most use cases, Nano Banana 2 offers the best value. Choose Nano Banana Pro when your work demands precise textures, complex lighting, and strict adherence to detailed prompts. For the fastest and cheapest option, see Nano Banana API.
from openai import OpenAI
client = OpenAI(
api_key="YOUR_API_KEY",
base_url="https://api.aiandapi.com/v1"
)
response = client.images.generate(
model="nano-banana-2",
prompt="A cute golden retriever wearing sunglasses on a beach",
size="1024x1024"
)
print(response.data[0].url)How developers and businesses use Nano Banana 2 API
Create 4K product photos with sharp textures and fine detail for premium e-commerce experiences.
Design panoramic banners and hero images at 4:1 or 8:1 ratios for websites and ad campaigns.
Generate cinematic-quality scenes and social media visuals with rich lighting and composition.
Produce multi-language visual content for global markets with in-image text translation.
Everything you need to know about Nano Banana 2 API
Explore other Nano Banana models:
Whether you need volume discounts, dedicated rate limits, or priority support — we're here to help. Reach out and we'll get back to you within 24 hours.
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