AI Notes
Tool reviews, prompt experiments, cost comparisons, and workflow notes are collected here as one practical reading path.
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AI Note
A Tone Cleanup Failed, So I Had to Rewrite the Whole Article
How targeted tone cleanup failed, made the piece feel stitched together, and forced a full rewrite around the original flow.
Jul 28, 2026 -
Review
I Gave My Brand Logo to Three AIs — Gemini Drew, Codex Vectored, Claude Deployed
One AI couldn't do it, so I split it across three. Gemini spits out photosynthesis diagrams when it tangles; Codex carved the vector in 68 tries.
Jul 18, 2026 -
Review
One Month with ChatGPT — Free vs. Paid
What I learned from using it every day for a month, and who actually needs the paid plan.
Jun 8, 2026 -
Review
Claude Review — A Powerhouse for Long-Form Writing and Documents
Report summaries, writing, even coding. I put it head-to-head with ChatGPT to see what's different.
Jun 15, 2026 -
Review
Gemini Review — It Shines When Paired with Google Services
I spent two weeks testing whether the Gmail and Google Docs integration is actually useful.
Jun 19, 2026 -
Review
Three Image Generation AIs Compared
I ran the same prompts through Midjourney, DALL·E, and Stable Diffusion to see how they stack up.
Jun 22, 2026 -
Review
Perplexity Review — Two Weeks with the AI That Searches
I used the search-focused AI that cites its sources as my main search engine for two weeks.
Jul 4, 2026 -
Experiment
GPT-5.5 Was Overkill: Three OpenAI Models, One Job, Real Bills
gpt-5.5 vs gpt-5.6-luna vs gpt-5.4-mini: how $0.72 per article became $0.11, and where the money really went.
Jul 17, 2026 -
Experiment
What Happens When You Let an AI Write Its Own Grading Rubric
"Write the grading criteria, then grade your own answer" — is self-evaluation ever fair?
Jul 3, 2026 -
Experiment
Korean vs. English Prompts: Comparing the Results
The same request in Korean and in English. Is the quality gap real, or just a rumor?
Jun 30, 2026 -
Experiment
The Question Order That Makes AI Answers Sharper
Asking for the conclusion first vs. building up step by step. The order of your questions changes the depth of the answer.
Jun 26, 2026 -
Experiment
Iterating on a Work-Automation Prompt, Version by Version
From v1 to v5 — how my weekly-report automation prompt evolved.
Jun 23, 2026 -
Experiment
The Moments AI Writing Loses Its Human Touch
I dissected 20 AI-written pieces and found 6 patterns that give the machine away.
Jun 19, 2026 -
Experiment
Short Prompts vs. Long Prompts: How Different Are the Results?
A 10-character request vs. a 500-character one — where's the break-even point on length?
Jun 16, 2026 -
Experiment
How Well Do Image AIs Understand Abstract Instructions?
I threw vague prompts like "a lonely Tuesday afternoon" at three image generators.
Jun 12, 2026 -
Experiment
Ask an AI for 30 Blog Titles — What Patterns Emerge?
I generated 30 titles and sorted them, and the formulas AI loves became obvious.
Jun 9, 2026 -
Experiment
I Compared 5 Prompts for Summarizing Long Documents
From a bare "summarize this" to role and format instructions — same document, five summaries.
Jun 5, 2026 -
Experiment
Same Question, Different Answers: ChatGPT vs. Claude
I asked both AIs the exact same 10 questions. I didn't expect their personalities to differ this much.
Jun 2, 2026 -
Practical note
My Gmail Bot Died Quietly After Ten Days — Traps I Knew About and Walked Past
invalid_grant, 7-day OAuth token expiry, frozen scopes, silent failure: five mistakes that came from knowing but not preparing.
Jul 17, 2026 -
Practical note
Physical AI Is Coming: Where It Stands Today
Physical AI, humanoid robots, and embodied AI explained through real adoption stages.
Jul 9, 2026 -
Practical note
Turning Monitoring Emails into AI-Assisted Incident Reports
A small operations automation that turns noisy monitoring emails into Telegram alerts and archived reports.
Jul 7, 2026 -
Practical note
The 5 Stages of Becoming an AI Power User
From curiosity to workflow modules: where people get stuck, and what changes when they move forward.
Jul 7, 2026 -
Practical note
How to Save Tokens by Choosing the Right AI Model
Use light models for simple edits, balanced models for normal work, and strong models for high-risk tasks.
Jul 6, 2026 -
Practical note
7 Ways to Use AI at Work
From drafting emails to cleaning up meeting notes — practical techniques that actually save time on the job.
Jun 26, 2026 -
Practical note
10 AI Tools You Can Use for Free
AI tools you can start using without spending a cent, organized by what you need them for.
Jun 29, 2026 -
Practical note
5 Things You Must Know Before Using AI
Hallucinations, privacy, copyright… everything you should know to use AI safely, in one place.
Jul 2, 2026 -
Practical note
Should You Pay for AI? A 5-Point Checklist Before You Subscribe
Who actually gets their $20/month worth, and who should stay on free plans.
Jul 4, 2026 -
Practical note
Should You Buy Stocks Because an AI Said So?
Why chatbot answers are unfit for trading decisions, and how real institutional trading AI differs.
Jul 4, 2026