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GoogleHow to use Gemini 2.5 Flash Preview 05-20 with your Google API key on TypingMind
Learn how to access and use Gemini 2.5 Flash Preview 05-20 with your Google API key through TypingMind. Get started with this AI model in minutes.
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.
Gemini 2.5 Flash Preview 05-20 Overview
| Model Name | Gemini 2.5 Flash Preview 05-20 |
| Provider | |
| Model ID | gemini-2.5-flash-preview-05-20 |
| Model Logo | Get the logo URL |
| Release Date | May 20, 2025 |
| Last Updated | May 20, 2025 |
| Knowledge Cutoff | 2025-01 |
| Context Window | 1,048,576 tokens |
| Max Output | 65,536 tokens |
| Pricing /1M tokens | $0.15 input $0.60 output $0.0375 cache read |
| Input Modalities | text, image, audio, video, pdf |
| Output Modalities | text |
| Capabilities | File UploadReasoningTool CallingStructured OutputTemperature Control |
Complete Setup Guide
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.
- Visit Google's API console
- Sign up or log in to your account
- Navigate to the API keys section
- Generate a new API key (copy it immediately as some providers only show it once)
- 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.
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.
- Open TypingMind and click "Models" in the left sidebar.
- Search for Google.
- Click the settings (gear) button next to Google.
- Paste your API key and save.

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

Enter the model details
Keep "Create Manually" selected and fill in the model details:
Name:Gemini 2.5 Flash Preview 05-20 via Google(or your preferred name)Model ID:gemini-2.5-flash-preview-05-20Context Length: Enter the model's context window (e.g., 1048576 for gemini-2.5-flash-preview-05-20)
Set up authentication
In the "Authentication" tab, set the connection details:
API Type:Gemini APIEndpoint URL:https://generativelanguage.googleapis.com/v1beta/modelsAuthentication Type:API Key via HTTP HeaderHeader Key:x-goog-api-keyHeader Value:<GEMINI_API_KEY>
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.

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.

Test and save
Click "Test & Save" to verify the connection and add the model.
Start chatting with Gemini 2.5 Flash Preview 05-20
Now you can start chatting with Gemini 2.5 Flash Preview 05-20 through TypingMind:
- Select Gemini 2.5 Flash Preview 05-20 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

💡 Pro tips for better results:
- Use specific, detailed prompts for better responses (How to use Prompt Library)
- Create AI agents with custom instructions for repeated tasks (How to create AI Agents)
- Use plugins to extend Gemini 2.5 Flash Preview 05-20 with web search, code execution, and more (How to use plugins)
- Upload documents and images directly to chat for AI analysis and discussion (Chat with documents)


Why TypingMind + Google?
Chat with Gemini 2.5 Flash Preview 05-20 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 Gemini 2.5 Flash Preview 05-20 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 Gemini 2.5 Flash Preview 05-20 with web search, image generation, and custom AI agents.
Frequently Asked Questions
Do I need a subscription to use Gemini 2.5 Flash Preview 05-20?
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 Gemini 2.5 Flash Preview 05-20?
Gemini 2.5 Flash Preview 05-20 costs $0.15/1M input tokens and $0.60/1M output tokens via Google. A typical conversation costs around $0.01-0.10, depending on length.
Can I use other models besides Gemini 2.5 Flash Preview 05-20?
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 Gemini 2.5 Flash Preview 05-20 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.
