What is Google Gemini?
Google Gemini is the family of multimodal artificial intelligence models developed by Google DeepMind. Initially launched as Gemini 1.0 in December 2023, it has rapidly evolved to Gemini 3, released in November 2025, considered Google's most intelligent model.
The Gemini app surpasses 650 million monthly users, and AI Overviews (AI-powered search answers) reaches 2 billion monthly users.
Main Features
Available Models (December 2025)
Gemini 3 Series
- Gemini 3 Pro: Google's most intelligent model with state-of-the-art reasoning and advanced agentic capabilities
- Gemini 3 Deep Think: Extended reasoning mode for complex problems (available for AI Ultra)
Gemini 2.5 Series
- Gemini 2.5 Pro: High-performance model with 1M token context window
- Gemini 2.5 Flash: Fast, cost-effective model with "thinking" enabled by default
- Gemini 2.5 Flash-Lite: Most economical version for high-volume tasks
Generation Models
- Imagen 4: High-quality image generation
- Nano Banana Pro: Image generation model with reasoning and search
- Veo 3 / Veo 3.1: Video generation with synchronized audio
Capabilities
- Multimodal understanding and generation (text, image, audio, video)
- Context window up to 1 million tokens
- Advanced reasoning with "Thinking" mode
- Deep Research: automated deep research
- Autonomous agents (Gemini Agent, Project Mariner)
- Image and video generation
- Native Google Workspace integration
- Gemini CLI: open source terminal code agent
- Jules: asynchronous coding agent
- Grounding with Google Search
- Interactive generative interfaces in AI Mode
- MCP (Model Context Protocol) support
Plans and Pricing (December 2025)
Consumer Plans
| Plan | Price | Main Features |
|---|
| Free | $0 | Limited access to Gemini 2.5, basic image generation |
| Google AI Pro | $19.99/month | Gemini 3 Pro, Deep Research, 1M context, Veo 3.1 Fast, 2TB storage |
| Google AI Ultra | $49.99/month | Everything in Pro + full Veo 3, Deep Think, Gemini Agent, higher limits |
For Students
- Google AI Pro free for 1 year for verified students (18+) in selected countries
For Business
- Google Workspace: Gemini integrated in Gmail, Docs, Sheets, Slides, Meet
- Vertex AI: Custom pricing with enterprise SLAs
API Pricing (Gemini 3 Pro)
- Input: $2.50 / 1M tokens (up to 200K context)
- Output: $10.00 / 1M tokens
- Long Context (>200K): $5.00 input, $20.00 output / 1M tokens
- Grounding with Google Search: $14 / 1,000 queries
API Pricing (Gemini 2.5 Flash)
- Input: $0.15 / 1M tokens
- Output: $0.60 / 1M tokens
Integrations and Tools
Google Apps
- Gmail, Google Drive, Docs, Sheets, Slides, Meet, Chat
- Google Photos, Google Maps
- Google Search (AI Overviews and AI Mode)
- NotebookLM (with audio overviews)
- Android Auto
Developer Tools
- Gemini CLI: Open source terminal agent (Apache 2.0)
- Gemini Code Assist: VS Code and IDE extension
- Jules: Asynchronous coding agent
- Google AI Studio: Playground and API management
- Vertex AI: Enterprise platform on Google Cloud
- Google Antigravity: Agentic development platform
Supported Frameworks
- LangChain, LangGraph
- LlamaIndex
- Vercel AI SDK
- Pydantic AI
- n8n
- Composio
Security and Privacy
- Encryption in transit and at rest
- SOC 2, ISO 27001 compliance
- Option to not train on user data (paid plans)
- Vertex AI: private endpoints, guaranteed SLAs
Technical Specifications
| Model | Input Context | Max Output | Knowledge Cutoff |
|---|
| Gemini 3 Pro | 1M tokens | 64K tokens | January 2025 |
| Gemini 2.5 Pro | 1M tokens | 65K tokens | September 2024 |
| Gemini 2.5 Flash | 1M tokens | 65K tokens | September 2024 |
