Gemini is Googleโs family of multimodal AI models, built by Google DeepMind . It powers Googleโs AI chat assistant at gemini.google.com , integrates into Google Workspace (Gmail, Docs, Sheets), and is available via the Gemini API for developers.
Model Context Window Best For Gemini 2.0 Flash 1,000,000 tokens Fast responses, everyday tasks Gemini 2.5 Flash 1,000,000 tokens Balanced, cost-efficient Gemini 2.5 Pro 2,000,000 tokens Complex reasoning, long documents Gemini Ultra 1,000,000 tokens Most powerful flagship model
Gemini 2.5 Pro has one of the largest context windows of any publicly available model โ 2 million tokens (roughly 1,500 books).
Multimodal โ understands and generates text, images, audio, video, and code
Google integration โ works natively within Gmail, Google Docs, Sheets, Slides, Meet
Massive context โ analyze entire codebases or document libraries in one prompt
Search grounding โ can search Google in real time for up-to-date information
Gemini CLI โ command-line access to Gemini for developers (see Gemini CLI )
Feature Description Gems Custom AI personas with specific instructions (like ChatGPTโs GPTs) Google Workspace integration Summarize Gmail, draft Docs, analyze Sheets Image generation Generate images via Imagen model YouTube summarization Paste a YouTube link and ask questions about the video File uploads PDFs, images, audio Extensions Connect to Google Maps, Google Flights, Hotels, and more
Gemini is deeply embedded in Googleโs productivity suite:
App What Gemini Can Do Gmail Summarize email threads, draft replies Google Docs Write, rewrite, summarize documents Google Sheets Generate formulas, analyze data, create charts Google Slides Create presentations from prompts Google Meet Transcribe meetings, summarize action items
Plan Price Key Features Free $0 Gemini 2.0 Flash, image generation Gemini Advanced $19.99/month Gemini 2.5 Pro, 1M context, Gems Google One AI Premium $19.99/month Includes Gemini Advanced + 2 TB Google Drive Gemini for Workspace From $12/user/month Enterprise Workspace integration
Feature Gemini ChatGPT Claude Context window Up to 2M tokens 128K tokens 200K tokens Google integration Native No No Image generation Yes (Imagen) Yes (DALL-E 3) No Real-time search Yes (Google Search) Yes Yes (Pro) Video understanding Yes Limited No Coding (agent) Gemini CLI, Jules Codex, ChatGPT Claude Code
# Install the Google Generative AI SDK
pip install google-generativeai
import google.generativeai as genai
genai.configure(api_key = "YOUR_API_KEY" )
model = genai.GenerativeModel ( 'gemini-2.5-flash' )
response = model.generate_content ( "Explain Kubernetes in simple terms" )
Get your API key at Google AI Studio .