Monday, January 12, 2026

What is generative AI and agentic AI , explain with example ?

 

What is Generative AI?

Definition

Generative AI is a type of Artificial Intelligence that can create new content based on what it has learned from existing data.

It doesn’t just analyze or classify data — it generates:

  • Text
  • Images
  • Code
  • Audio
  • Video

In simple words:

Generative AI creates something new rather than just responding with predefined answers.


How Generative AI Works (Simplified)

Generative AI models:

  • Learn patterns from large datasets
  • Understand relationships between words, images, or sounds
  • Generate new output that follows those learned patterns

Most generative AI systems are based on:

  • Large Language Models (LLMs) for text
  • Diffusion / GAN models for images

Examples of Generative AI

1️⃣ Text Generation

ChatGPT, Copilot, Gemini

Example:

  • Writing emails
  • Creating documentation
  • Generating SQL queries
  • Summarizing reports

You ask:
“Write an email to request database downtime”
Generative AI creates a new email, not copied from anywhere.


2️⃣ Code Generation

✅ GitHub Copilot

Example:

  • Auto‑generates Python, SQL, Java code
  • Suggests optimized queries

📌 Useful for DBAs:

  • Generate scripts
  • Write monitoring queries
  • Create automation logic

3️⃣ Image Generation

✅ DALL·E, Midjourney

Example:

  • Create system architecture diagrams
  • Generate design mockups

You describe → AI generates a new image.


4️⃣ Database & IT Example

Generative AI can:

  • Generate SQL tuning suggestions
  • Create incident RCA summaries
  • Write SOP or runbooks

✅ Example:

Automatically generating a root cause analysis after a database outage


Key Characteristics of Generative AI

AspectDescription
OutputNew content
CreativityHigh
AutonomyLimited
Decision OwnershipHuman

What is Agentic AI?

Definition

Agentic AI refers to AI systems that can act autonomously to achieve a goal by:

  • Planning steps
  • Making decisions
  • Taking actions
  • Adjusting based on results

In simple words:

Agentic AI doesn’t just generate content — it decides what to do next and does it.


How Agentic AI Works

An Agentic AI system typically has:

  1. Goal – What needs to be done
  2. Planning capability – Breaks goal into tasks
  3. Tools access – APIs, databases, scripts
  4. Feedback loop – Learns from results
  5. Decision logic – Chooses next action

It often uses Generative AI as one component, but adds autonomy.


Real‑World Examples of Agentic AI


1️⃣ AI Operations Agent (IT / DBA Example) ✅

🔹 Goal: “Keep database running optimally”

Agentic AI actions:

  • Monitor CPU, memory, waits
  • Detect abnormal behavior
  • Analyze historical patterns
  • Decide: scale resources / kill session / raise incident
  • Execute automatically or seek approval

📌 Unlike Generative AI:

  • It does not wait for a prompt
  • It acts on its own

2️⃣ Self‑Healing Systems

✅ Common in modern DevOps

Example:

  • App crashes
  • Agentic AI detects failure
  • Restarts service
  • Verifies recovery
  • Notifies team

No human prompt required.


3️⃣ Autonomous Customer Support Agent

🔹 Goal: “Resolve customer issues”

Steps:

  • Understand issue
  • Query CRM
  • Reset password
  • Update ticket
  • Close issue

📌 A chatbot that only replies is Generative AI
📌 A bot that resolves the issue end‑to‑end is Agentic AI


4️⃣ AI Shopping Agent

You say:

“Buy the cheapest laptop with 16GB RAM”

Agentic AI:

  • Searches websites
  • Compares prices
  • Applies filters
  • Makes decision
  • Places order (with rules)

Key Characteristics of Agentic AI

AspectDescription
OutputActions + decisions
AutonomyHigh
Goal‑orientedYes
Tool usageYes
Self‑correctionYes

Generative AI vs Agentic AI (Clear Comparison)

FeatureGenerative AIAgentic AI
Core PurposeCreate contentAchieve goals
AutonomyLowHigh
Requires PromptYesOften No
Takes Actions❌ No✅ Yes
Uses ToolsLimitedExtensive
ExampleChatGPT writing emailAI auto‑healing a DB

Simple Real‑Life Analogy

Generative AI

Like a skilled writer who creates content when asked.

Agentic AI

Like a project manager who decides what to do, assigns tasks, and ensures results.


Combined Example (Very Important)

Most modern systems use both together:

📌 Agentic AI + Generative AI

  • Agent plans and decides
  • Generative AI produces text, code, explanations

✅ Example: AI SRE Agent:

  • Detects incident (Agentic)
  • Diagnoses cause (Agentic)
  • Generates RCA document (Generative AI)
  • Executes fix (Agentic)
  • Sends summary email (Generative AI)

Interview‑Ready Summary (2–3 lines)

“Generative AI focuses on creating new content like text, code, or images based on learned patterns. Agentic AI goes a step further by autonomously planning, deciding, and taking actions to achieve a goal, often using Generative AI as part of its decision process.”

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