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Gemini desktop client · Your own API key
Bring your Gemini API key into an app on your computer. Choose an available model and keep your conversations stored locally in MultipleChat.
24-hour trial · $250 one-time license
Cloud API usage billed separately. Local models use your hardware.
MultipleChat On your computer•••• •••• •••• ••••Your chat history stays in the desktop app.
Illustrated setup. Cloud requests leave your computer.
Take a closer look
A general illustrated walkthrough of MultipleChat's provider setup. Follow the specific connection details below for Gemini.
Your computer. Your own API keys. · Illustrated walkthrough; screens are simplified.
Gemini connection guide
Use a Gemini API key associated with your Google API project. Select Gemini in the desktop app, enter the key and choose a supported model. Your Google account's API project controls access, quotas and billing.
| Choose this provider | Gemini |
|---|---|
| Use this key | Gemini API key |
| Choose a model | A supported Gemini chat model |
| API usage billed through | Your Google API project |
| Where requests go | Your computer → Gemini API |
Google AI Studio manages Gemini API keys and their associated projects. The key you use must permit Gemini API requests. This setup connects the API to MultipleChat; it does not sign you into the Gemini consumer app or import its history.
Check the key's project, API restrictions and quota in Google AI Studio. Available models, billing and regional access depend on your Google API account. The desktop trial does not supply Google API credit.
This guide keeps your chat history on your computer, while the configured API processes requests in the cloud. Prompts and relevant document passages go through the connection shown above. To run inference on your own hardware, use a local model.
Check whether the key is blocked or restricted to a different API. Follow Google's current key guidance and use a key authorized for the Gemini API.
Verify that your project and location can access the selected model. Choose a supported model offered by the installed desktop app.
Review the project's Gemini API quotas and billing setup. Usage limits belong to the Google API project, separately from your desktop license.
Provider references: Google's Gemini API key guide. Reviewed 24 October 2026. Model availability depends on your account and installed app release.
MultipleChat is an independent desktop app, not an official Gemini product. Provider and model names belong to their respective owners.
Getting started
Have your Gemini API key and any required API credit ready before starting the 24-hour app trial.
Have your API key or local model ready before clicking Start trial. Your 24 hours begin at that point. A consumer AI subscription does not automatically include API credit.
Download for Mac or Windows and check the platform requirements. This is an independent desktop app with a separate license.
Open Settings → AI Providers → LLM, select Gemini, and enter your Gemini API key in the app.
Choose a supported Gemini chat model in the app and save. Start a workspace and test a short text conversation before using additional model capabilities.
Save the provider settings, create a workspace and send a short message. Check usage in Your Google API project after testing. Keep your API key private.
Your desktop app license
Try MultipleChat AI Desktop on your own computer before buying. Your license key arrives by email.
No recurring app subscription. Cloud model usage is billed separately by your provider.
Before you download
This connection uses a Gemini API key. Signing into Google's consumer Gemini app does not configure the desktop app's API connection.
Manage the key and its associated Google project through Google AI Studio and the relevant Google Cloud settings. The key must permit requests to the Gemini API.
No. MultipleChat is an independent desktop app that connects to Google's Gemini API using your own key.
Create an API key with a supported provider and add it in Settings → AI Providers → LLM. The app connects directly to that provider using your key. API usage is billed to your provider account separately from the app license.
Your chat history, documents, local document index and API keys are stored on your computer. When you choose a cloud model, your prompt and any relevant document passages are sent to that provider under its terms. No MultipleChat server sits between your app and the model provider.
Yes. Connect a local model through Ollama or LM Studio. Local chat and document indexing can run on your computer without cloud API usage charges. Model performance depends on your hardware. A licensed copy needs an online check-in at least every 14 days; web search and cloud models also need an internet connection.
Try the app for 24 hours. The trial starts when you click Start trial, so prepare your API key or local model first. A license costs $250 as a one-time purchase. Cloud API usage is charged separately by your provider. Local models use your own hardware without per-token provider fees.
No. MultipleChat AI Desktop is a separate, single-user product using your own API keys or local models. The web subscription and web-only features, including the Studios and AI Collaboration, are separate.
Your license key is emailed to the address you use at checkout. Enter it under Settings → License. If the email does not arrive, check your spam folder or contact [email protected].
Need help connecting your AI? Read the setup guide or contact support.
Your providers. Your desktop.
Connect OpenRouter or a direct provider account. Each guide shows which key to use, how to choose a model, and where your requests go.