Google AI Ecosystem Knowledge Base

A comprehensive reference for Google's AI services, models, tools, and platforms. Built for developers who need quick answers on what to use and when.

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🚀 Quick Start Decision Tree

What are you building?
│
├─► Chatbot / Assistant
│   └─► Gemini 3 Flash + Function Calling
│
├─► Complex Analysis / Research
│   └─► Gemini 3 Pro + Deep Think Mode
│
├─► High-Volume API (cost-sensitive)
│   └─► Gemini 2.5 Flash-Lite
│
├─► Real-Time Voice App
│   └─► Gemini Live API
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├─► Image Generation
│   └─► Imagen 4 (quality) or Nano Banana Pro (speed)
│
├─► Video Generation
│   └─► Veo 3.1
│
├─► Multi-Agent System
│   └─► ADK + Agent Engine
│
├─► Mobile/Web App with AI
│   └─► Firebase AI Logic SDK
│
└─► Autonomous Coding Tasks
    └─► Antigravity or Gemini CLI

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📁 Knowledge Base Structure

google-ai-kb/
├── README.md                    # You are here
├── QUICKREF.md                  # One-page cheat sheet
│
├── models/
│   ├── README.md                # Models overview & comparison
│   ├── gemini-3-pro.md          # Flagship reasoning model
│   ├── gemini-3-flash.md        # Recommended daily driver
│   ├── gemini-25-flash.md       # Balanced performance
│   ├── gemini-25-flash-lite.md  # Economy/scale model
│   ├── gemini-live.md           # Real-time audio/video
│   ├── imagen.md                # Image generation
│   └── veo.md                   # Video generation
│
├── tools/
│   ├── README.md                # Tools overview
│   ├── function-calling.md      # Connect to external APIs
│   ├── google-search.md         # Search grounding
│   ├── code-execution.md        # Sandboxed Python
│   ├── url-context.md           # Web page analysis
│   └── computer-use.md          # Browser automation
│
├── platforms/
│   ├── README.md                # Platforms comparison
│   ├── ai-studio.md             # Prompt playground
│   ├── vertex-ai.md             # Enterprise platform
│   ├── firebase-ai-logic.md     # Mobile/web SDKs
│   └── antigravity.md           # Agentic IDE
│
├── frameworks/
│   ├── README.md                # Frameworks overview
│   ├── adk.md                   # Agent Development Kit
│   ├── genkit.md                # Server-side AI workflows
│   └── gemini-cli.md            # Terminal coding agent
│
├── guides/
│   ├── choosing-a-model.md      # Decision guide
│   ├── pricing-comparison.md    # Cost breakdown
│   ├── migration-paths.md       # Upgrading between tiers
│   └── architecture-patterns.md # Common app architectures
│
└── assets/
    └── ecosystem-diagram.md     # Visual reference

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🧠 Models at a Glance

Model	Speed	Cost	Best For
Gemini 3 Pro	Medium	$$$	Complex reasoning, research, agentic workflows
Gemini 3 Flash	Fast	$	Daily tasks, coding, chat interfaces
Gemini 2.5 Flash	Very Fast	$	Balanced workloads, streaming
Gemini 2.5 Flash-Lite	Fastest	¢	High-volume, simple tasks
Gemini Live	Real-time	$$	Voice apps, video streaming
Imagen 4	-	$$	High-quality image generation
Veo 3.1	-	$$$	Video generation with audio

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🏗️ Platforms at a Glance

Platform	Purpose	When to Use
AI Studio	Prototype & Test	Exploring prompts, quick experiments
Vertex AI	Production & Enterprise	Scale, compliance, governance
Firebase AI Logic	Mobile & Web Apps	Client-side AI integration
Antigravity	Agentic IDE	Autonomous dev tasks

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🔧 Built-in Tools

Tool	What It Does
Function Calling	Connect models to external APIs
Google Search	Ground responses in real-time web data
Code Execution	Run Python in a sandbox
URL Context	Analyze web pages
Computer Use	Browser automation

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⚙️ Frameworks

Framework	Language	Purpose
ADK	Python/TypeScript	Build multi-agent systems
Genkit	JS/Go/Python	Server-side AI workflows
Gemini CLI	Terminal	Agentic coding from command line

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📚 Guides

• Choosing a Model — Decision flowchart
• Pricing Comparison — Cost breakdown by use case
• Migration Paths — Moving between tiers
• Architecture Patterns — Common app structures

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🔗 Official Resources

Resource	URL
Gemini API Docs	https://ai.google.dev/gemini-api/docs
Vertex AI Docs	https://cloud.google.com/vertex-ai/docs
Firebase AI Logic	https://firebase.google.com/docs/ai-logic
ADK Docs	https://google.github.io/adk-docs
AI Studio	https://aistudio.google.com
Antigravity	https://antigravity.google

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Contributing

Found something outdated or missing? PRs welcome.

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License

MIT — use this however you want.