An Opinionated Guide to Using AI Right Now

Slides based on Ethan Mollick's Article published on Oct 19, 2025

2 step creation flow

I asked Claude:


Welcome

Understanding AI in 2025

Source: Ethan Mollick, [An Opinionated Guide to Using AI Right Now](https://www.oneusefulthing.org/p/an-opinionated-guide-to-using-ai


Question 1

Which Free AI Tools Should I Use?


The Four Most Advanced AI Systems

  1. Claude (Anthropic)
  2. Gemini (Google)
  3. ChatGPT (OpenAI)
  4. Grok (xAI - Elon Musk)

Plus strong open-weight alternatives:

All offer some free access


Free vs Paid: Quick Decision Tree

Use FREE if you:

Consider PAID if you:


Key Features to Consider When Choosing

FeatureWhat it Means
Web SearchSome free tools (Gemini, Perplexity) search the web; others cannot
Image CreationGemini best for free; ChatGPT & Grok are runners-up
Privacy PolicyVaries significantly across systems
Access LevelsDifferent restrictions on free tiers
PersonalityEach AI has different "vibes"

Quick Recommendation

If using free models:

If considering upgrade:


Question 2

Should I Pay for Advanced AI, and Which One?


The Pricing Tiers

$20/month tier

$200/month tier


Three Systems Worth Considering at $20/month

SystemStrengthsNotes
Claude (Anthropic)Excellent documents (PowerPoint, Excel)No image/video generation
Gemini (Google)Strongest image generation; video (Veo 3.1)Emerging capabilities
ChatGPT (OpenAI)Balanced features; video (Sora 2)Most established

All three offer:


Special Mention: Grok

For most people: Stick with Gemini, Claude, or ChatGPT


Question 3

Which AI Model Should I Select?


Three Types of Models Available

1. Chat Models (Free tier)

2. Agent Models (Paid tier)

3. Wizard Models (Advanced tier)

Bottom line: Use Agent models for real work that matters


ChatGPT Model Selection

The Confusing Reality:

Recommendations:


Gemini Model Selection

Your Options:

Current Status:


Claude Model Selection

Simplified Approach:

Current Limitation:


Data Privacy Consideration

If using paid versions and want data never used for training:

SystemCan Disable Training?Cost
ChatGPTYesNo loss of functionality
ClaudeYesNo loss of functionality
GeminiYesLoss of some functionality

Question 4

How Do I Get Better Answers?


Key Finding

The biggest uses for AI:

  1. Practical guidance
  2. Information-seeking

Two ways to dramatically improve answer quality:


Strategy 1: Deep Research Mode

What it does:

Key advantages:

Important note:


Strategy 2: Connect AI to Your Data

What you can connect:

Real example:

Ask Claude: "Give me a detailed briefing for my day" (with connections enabled)

Result: Often impressive, comprehensive overview

Why it matters:


Combining Both Strategies

For maximum results:

  1. Enable data connections
  2. Activate Deep Research mode
  3. Use advanced models (Agent or Wizard)

Result: High-quality, well-researched, personalized output


Question 5

How Do I Use Multimodal Inputs Effectively?


Voice Mode

Implementation Quality:

SystemQualityNotes
Gemini appExcellentTop implementation
ChatGPT app/websiteExcellentTop implementation
ClaudeWeakerLess optimized than others

Important limitation:


Visual Input (Screen/Camera Sharing)

Use cases:

Effect:

Makes old assistants (Siri, Alexa) feel very primitive


File & Document Upload

You can now upload:

Mobile apps especially powerful:


Question 6

What Can AI Create For Me?


Documents

PowerPoint & Excel

How to trigger:


Code-Based Outputs

All three systems can:

Advanced coding tools available


Images

Capability:

Quality:

Modern AI can handle complex, contextual requests Example: Creating otters using Wi-Fi on airplanes in multiple styles


Video

Available from:

Capabilities:

Current state:


Reality Check

"You really can't trust anything you see online anymore. Please take all videos with a grain of salt."

What AI could create 4 years ago vs now: Massive difference

The speed of change is accelerating


Question 7

How Do I Avoid Common AI Pitfalls?


Pitfall 1: Hallucinations

Good news:

Bad news:

When are answers better?

Important:

Asking AI to "explain its logic" won't help—it doesn't know why it did something


Pitfall 2: Sycophancy & Personality

The problem:

How to counter:

When you need real feedback:


Pitfall 3: Insufficient Context

The reality:

Solution:

Provide context actively:

More context = Better answers


Pitfall 4: Over-thinking Prompting

Old advice (no longer needed):

New reality:

Don't worry about prompting "well"


Question 8

How Should I Learn to Use AI Well?


The Goal

"The goal isn't to become an AI expert. It's to build intuition about what these systems can and can't do, because that intuition is what will matter as these tools keep evolving."


Three-Step Approach

1. Start with Something Real

2. Experiment & Play

3. Build Intuition


Experiment Ideas

Try things. Learn limits.


The Key Insight

"Users figured out what [AI] should do"

The future of AI isn't just better models—it's people figuring out what to do with them


The Bigger Picture


What Will Change

In a few months:

In two years:


What Won't Change

People who learn to use these systems well will:

Learning to use AI well today = competitive advantage tomorrow


Final Recommendation

  1. Pick a system (Claude, Gemini, or ChatGPT)
  2. Start meaningful (work on real problems)
  3. Experiment freely (have fun)
  4. Build intuition (not expertise)

The future isn't about being an AI expert. It's about understanding what's possible.


About This Guide


About the Author

Ethan Mollick

This is an opinionated guide because:

Commitment to you:

Source: An Opinionated Guide to Using AI Right Now Available at: oneusefulthing.org


Key Takeaway

The future of AI isn't about better models. It's about people figuring out what to do with them.

Start today. Build intuition. The rest will follow.


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