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How to Use Gemini 2.5 Flash Image Preview API (NanoBanana)
Free testing, affordable pricing, and stable access to Google’s NanoBanana API on Kie.ai.
Free Access to Google Gemini 2.5 Flash Image Preview on Kie.ai
Start with Google Gemini 2.5 Flash Image Preview or Kie.ai Free Test
Gemini 2.5 Flash Image Preview API, also known as the Nano Banana API, is Google’s latest model for advanced image generation and editing. Developers can officially call it through Google Gemini API, AI Studio, or Vertex AI, but if you want to skip the setup and test it instantly, you can try the Nano Banana API free online on Kie.ai—a fast, developer-friendly playground for generating and editing images with no extra configuration.
What is Gemini 2.5 Flash Image Preview API (NanoBanana)?
Gemini 2.5 Flash Image Preview vs NanoBanana
Gemini 2.5 Flash Image Preview API, widely known in the AI community as NanoBanana, is Google’s latest model for image generation and editing. While Gemini 2.5 Flash Image Preview is the official name inside Google’s ecosystem, NanoBanana emerged as a community nickname after the model gained popularity for its speed, accuracy, and natural editing results.
Key Capabilities of Gemini 2.5 Flash Image Preview (NanoBanana AI)
This model introduces advanced features that make it a versatile tool for creators and developers: - Text-to-Image: generate detailed visuals from natural language prompts - Image Editing: refine photos with simple instructions or replace elements - Character Consistency: keep the same subject across different poses, outfits, or environments - Background Replacement: swap or enhance scenes while preserving natural detail
Official Ways to Access Google Gemini 2.5 Flash Image API
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Using Gemini-2-5-Flash-Image-Preview in Google AI Studio
Google AI Studio is the quickest way to prototype with the Gemini 2.5 Flash Image Preview (NanoBanana API). Developers can upload an image or simply enter a text prompt to test generation and editing features directly in the browser. You can try it directly at https://aistudio.google.com/ by selecting “Gemini Native Image” for online use.
Accessing Gemini 2.5 Flash Image API via Google Gemini API
Developers can integrate Gemini 2.5 Flash Image Preview (NanoBanana API) directly into their apps through the Google Gemini API. The process is straightforward: 1)Get Your API Key – Create a project in Google Cloud (https://aistudio.google.com/app/apikey), enable the Gemini API, and generate an API key. 2)Prepare Your Request – Write a prompt (e.g., text-to-image or edit instructions) and structure it in JSON format. 3)Send the API Call – Use cURL, Python, or another HTTP client to send the request to the Gemini endpoint and receive the generated image.
Enterprise Deployment with Vertex AI
For production-scale workloads, Vertex AI provides a environment to deploy and manage the Gemini 2.5 Flash Image API. The workflow typically includes: 1)Set Up a Vertex AI Project (https://console.cloud.google.com/) – Create a Google Cloud project and enable Vertex AI services. 2)Integrate the Gemini Model – Add the Gemini-2-5-Flash-Image-Preview model into your Vertex AI environment for consistent access. 3)Scale and Monitor – Run large volumes of image generation tasks, manage usage across teams, and monitor performance with built-in logging and dashboards.
How to Use Gemini 2.5 Flash Image Preview API on Kie.ai
Kie.ai makes it easy to work with the Gemini 2.5 Flash Image Preview API (also called NanoBanana) without the need for complex Google Cloud setup. Here’s the simple three-step process:
Get Your NanoBanana API Key
Sign up on Kie.ai and retrieve your NanoBanana API key from the dashboard. This key gives you access to all available features.
Test Gemini 2.5 Flash Image Preview Free
Use the built-in Kie.ai Playground to try the API instantly—no configuration required. Enter a text prompt or upload an image to explore image generation and editing.
Send API Requests and Get Results
Make POST requests with your API key, including text prompts or image URLs. The NanoBanana API will return the generated or edited image, ready to integrate into your apps and workflows.
Example Prompts with Gemini 2.5 Flash Image API
Upload up to 3 Images with Gemini 2.5 Flash Image Preview API
Combine as many as three images in a single prompt and let the Gemini 2.5 Flash Image Preview API (NanoBanana) blend creative elements seamlessly into one output.
Test Gemini 2.5 Flash Image API Now
Style Transformation with NanoBanana API while Preserving Identity
Reimagine your selfies in different styles using the NanoBanana API, while keeping your facial identity consistent. From anime to cinematic portraits, the model adapts your photo without losing natural likeness.
Test Gemini 2.5 Flash Image API Now
Background Replacement and Text Editing via Gemini 2.5 Flash Image Preview
Easily add text, replace backgrounds, or swap the main subject using the Gemini 2.5 Flash Image Preview API. Prompts deliver natural, high-quality edits without complex design tools.
Test Gemini 2.5 Flash Image API Now
Why Choose Kie.ai for Gemini 2.5 Flash Image Preview API?
Same Gemini 2.5 Flash Image Preview API as Google
Same model, same results. Kie.ai runs on the same underlying Gemini 2.5 Flash Image Preview (aka NanoBanana) capabilities you’d access via Google—covering text-to-image, image editing, background replacement, and character consistency.
Affordable NanoBanana API Pricing
Our NanoBanana API plans are designed to be transparent and budget-friendly, allowing individuals and teams to scale projects without overspending.
Free Testing with Gemini 2.5 Flash Image Preview API
Experiment instantly in Kie.ai’s Gemini 2.5 Flash Image Preview API playground—no setup required, just enter prompts and generate results. In addition, Kie.ai offers low-cost testing plans, allowing developers to run extended experiments without heavy upfront investment.
Stable and Reliable NanoBanana API Performance
With Kie.ai, you can count on the NanoBanana API for consistent uptime, stable endpoints, and dependable results in both testing and production.
Frequently Asked Questions
What is Gemini 2.5 Flash Image Preview API (NanoBanana)?
The Gemini 2.5 Flash Image Preview API, often called NanoBanana in the AI community, is Google’s latest image generation and editing model. It supports text-to-image, image editing, background replacement, and character consistency.
How can I access the Gemini 2.5 Flash Image Preview API officially?
You can use it through Google AI Studio, the Gemini API with an API key, or Vertex AI for enterprise deployment.
Is NanoBanana API the same as Gemini 2.5 Flash Image Preview?
Yes, NanoBanana is the community nickname for the same model officially named Gemini 2.5 Flash Image Preview. Both terms refer to the same API.
Can I try Gemini 2.5 Flash Image Preview API for free?
Yes. Kie.ai provides a free playground for NanoBanana API where you can test prompts instantly without setup. Google AI Studio also offers limited free trials.
What are common use cases for NanoBanana API?
Popular use cases include portrait editing, product photo enhancement, consistent character generation, creative style transfers, and background replacement.
How much does it cost to use Gemini 2.5 Flash Image Preview API?
回答Google charges based on API usage, while Kie.ai offers more affordable pricing tiers and even low-cost testing packages to help you experiment.
Can I edit existing images with NanoBanana API?
Yes. You can upload an image and use natural language prompts to refine details, replace elements, or change backgrounds.