How to use Nano Banana Pro with your Google API key on TypingMind

Learn how to access and use Nano Banana Pro with your Google API key through TypingMind. Get started with this AI model in minutes.

Nano Banana Pro for higher-fidelity image generation and design-heavy edits

Google Gemini is Google DeepMind's advanced multimodal AI platform designed for the "agentic era," with the latest Gemini 2.5 family of models released in 2025 featuring breakthrough thinking and reasoning capabilities.

The current lineup includes Gemini 2.5 Deep Think (most advanced reasoning model using parallel multi-agent reasoning for complex math and coding), Gemini 2.5 Pro (flagship thinking model with enhanced performance and 1M token context window), Gemini 2.5 Flash (fastest thinking model balancing speed and intelligence), and Gemini 2.5 Flash-Lite (optimized for cost-effective deployment).

Key features include native tool use, multimodal understanding (text, images, audio, video), code execution integration, Google Search connectivity, reinforcement learning-enhanced reasoning, and the ability to think through responses before answering for improved accuracy.

See the official Google documentation for more details.

Nano Banana Pro Overview

Model NameNano Banana Pro
ProviderGoogle
Model IDgemini-3-pro-image
Model LogoGet the logo URL
Release DateMay 28, 2026
Last UpdatedMay 28, 2026
Knowledge Cutoff2025-01
Context Window65,536 tokens
Max Output32,768 tokens
Pricing /1M tokens$2.00 input
$120.00 output
Input Modalitiestext, image
Output Modalitiestext, image
Capabilities
File UploadReasoningTemperature Control

Complete Setup Guide

I

Get Your Google API Key

First, you'll need to obtain an API key from Google. This key allows you to access their AI models directly and pay only for what you use.

  1. Visit Google's API console
  2. Sign up or log in to your account
  3. Navigate to the API keys section
  4. Generate a new API key (copy it immediately as some providers only show it once)
  5. Save your API key in a secure password manager or encrypted note

Sometimes, this provider will require you to add a payment method to your account before you can use your API key to chat with AI. So, to avoid any hiccups, make sure you've got a payment method set up and ready to go!

Important: Keep your API key secure and never share it publicly. Store it safely as you'll need it to connect with TypingMind.

II

Configure TypingMind with Google API Key

Option 1: Use the built-in Google provider (recommended)

The quickest way. TypingMind already has Google set up, so you only need to add your API key.

  1. Open TypingMind and click "Models" in the left sidebar.
  2. Search for Google.
  3. Click the settings (gear) button next to Google.
  4. Paste your API key and save.
Built-in providers with settings buttons on the TypingMind Models page

Option 2: Add the model manually

If you can't find the provider or model ID in the official list, you can add the model manually:

  1. Open the Models page

    Open TypingMind, click "Models" in the left sidebar, then click "Add custom model" in the top right corner.

    TypingMind Models page with the Add custom model button
  2. Enter the model details

    Keep "Create Manually" selected and fill in the model details:

    Name: Nano Banana Pro via Google (or your preferred name)
    Model ID: gemini-3-pro-image
    Context Length: Enter the model's context window (e.g., 65536 for gemini-3-pro-image)
    Add Custom Model dialog in TypingMind filled in for gemini-3-pro-image
  3. Set up authentication

    In the "Authentication" tab, set the connection details:

    API Type: Gemini API
    Endpoint URL: https://generativelanguage.googleapis.com/v1beta/models
    Authentication Type: API Key via HTTP Header
    Header Key: x-goog-api-key
    Header Value: <GEMINI_API_KEY>
    Google authentication settings in TypingMind
  4. Add pricing (optional)

    Open the "Pricing" tab and enter the model's input, output, and cache prices per 1M tokens so TypingMind can estimate your usage costs.

    Pricing settings in TypingMind for gemini-3-pro-image
  5. Check the capabilities

    In the "Capabilities" tab, keep "Auto check capabilities on save" on so TypingMind detects supported features like plugins, image input, and thinking, or enable them manually.

    Custom model capabilities settings in TypingMind
  6. Test and save

    Click "Test & Save" to verify the connection and add the model.

III

Start chatting with Nano Banana Pro

Now you can start chatting with Nano Banana Pro through TypingMind:

  • Select Nano Banana Pro from the model dropdown menu
  • Start typing your message in the chat input
  • Enjoy faster responses and better features than the official interface
  • Switch between different AI models as needed
Chat with Nano Banana Pro from Google on TypingMind

💡 Pro tips for better results:

TypingMindGoogle

Why TypingMind + Google?

Chat with Nano Banana Pro and 200+ other models in one workspace, using your own Google API key.

Best-in-class UI

TypingMind's interface is far superior to standard chat UIs.

Model flexibility

Switch between Nano Banana Pro and 200+ models instantly.

Cost control

Pay only for what you use through Google.

One-time purchase

Buy TypingMind once, use forever with any Google model.

Data privacy

Your conversations are stored locally by default, not on external servers.

Plugins, MCP, Skills & AI agents

Extend Nano Banana Pro with web search, image generation, and custom AI agents.

Try TypingMind for free

Frequently Asked Questions

Do I need a subscription to use Nano Banana Pro?

No. With your own Google API key, you pay only for what you use, with no monthly subscription. TypingMind is also a one-time purchase, not a subscription.

How much does it cost to use Nano Banana Pro?

Nano Banana Pro costs $2.00/1M input tokens and $120.00/1M output tokens via Google. A typical conversation costs around $0.01-0.10, depending on length.

Can I use other models besides Nano Banana Pro?

Yes. Any model your Google API key can access works in TypingMind, and you can switch between it and models from other providers in the same chat.

Is my data private when using Nano Banana Pro with TypingMind?

TypingMind stores your conversations locally (in your browser on the web version, on your device in the desktop app). Your messages are sent to Google with your API key, so check Google's data policy for how it handles API requests.

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