PracticalX Deep Dives · AI · Day 12 of 30

What I Spent on AI Tools Last Year

And Why I'd Spend It Again

K
Karthik Mahadevan
CIO · Building PracticalX
Published Day 12 · 2025
Read time 10 min read
Series Learning AI Out Loud

AI subscriptions have better returns than OTT. It's intelligent investment in your future.

I know that's a bold claim. So let me back it up with something most people never share — the actual numbers.

This is what I spent. What I got for it. And why I'd do it all again.

Section 01

The Subscription Audit


Before we talk about AI spend — let's talk about what you're already spending.

Pull up your bank statement right now. Count the subscriptions. Netflix. Spotify. Disney+. Apple TV. Amazon Prime. YouTube Premium. The one you forgot you signed up for eighteen months ago.

Most people are spending somewhere between $60 and $120 a month on streaming content — and they've never once been asked to justify it. No business case. No ROI calculation. No employer approval. The payment just goes out, month after month, because the value feels self-evident.

Entertainment is worth paying for. Nobody is arguing otherwise.

"One set of subscriptions gives you something to watch. The other gives you something to become."

The same instinct that makes streaming spend feel automatic is the instinct that makes AI spend feel like it needs a justification. Those two instincts are not symmetrically warranted.

Section 02

The Financial Journey


Here's my actual journey. Not a recommendation. A data point.

Stage 01
ChatGPT Free
$0/month
Started free. Learned the basics. Understood what AI could and couldn't do at a surface level. No spend required to begin — and this is still true today. The free tiers of most major AI tools are genuinely useful for getting started.
Lesson: Don't let cost be the reason you don't start. The free tier is enough to learn whether the tool is worth paying for.
Stage 02
ChatGPT $20/month
$20/month
Upgraded when the free tier wasn't enough. The paid plan unlocked longer conversations, faster responses, and access to more capable models. First real AI spend. Worth it immediately — not because the tool was perfect but because the constraint of the free tier was slowing down the learning.
Lesson: The signal to upgrade is when the free tier constraint is slowing you down, not before.
Stage 03
Switched $20 to Claude
$20/month
Didn't add Claude on top of ChatGPT. Made a deliberate decision to redirect the same $20. Cancel one, start another. The budget stays the same. The learning accelerates. Claude's reasoning depth and coding capability changed what was possible — within weeks I had built my first practical AI agent.
Lesson: You don't have to add new spend to try a new tool. Redirect before you add.
Stage 04
Claude Subscription + Pay-as-You-Go API
~$40/month
Building agents means making API calls. API calls on the subscription plan have limits. I looked at upgrading to the next Claude tier — then realized the usage pattern I have would still hit the ceiling at the higher tier. More expensive, same problem. So I kept the $20 subscription and added a pay-as-you-go API account on top. Another ~$20 a month on average — but completely flexible. Busy months cost more. Quiet months cost less.
Lesson: Pay-as-you-go beats a fixed higher tier when your usage is variable. You only pay for what you actually use.
Stage 05
Added Gemini
~$20/month
Different use case — deep research, documentation, and Google Workspace integration. For research-heavy tasks and days when everything lives in Google's world, Gemini integrates natively in ways other tools don't. Not better or worse than Claude. Different. Worth having in the toolkit.
Lesson: The best AI tool is often the one that integrates most naturally into the workflow you already have.
Stage 06
Groq Pay-as-You-Go
Variable, low
The free tier covered most of my Groq usage. Pay-as-you-go when free limits were crossed. Practically negligible cost compared to the others — but the value when making API calls at scale is significant. The economics of building agents changed entirely.
Lesson: The model and the infrastructure are separate decisions. You can get comparable capability at dramatically lower cost with the right infrastructure layer.

The honest total:

Tool Monthly Cost
Claude subscription ~$20
Claude pay-as-you-go API ~$20
Gemini subscription ~$20
Groq pay-as-you-go Variable, low
Total ~$60/month
⚠️
Important: Everything described here is personal spend on personal devices in personal time. This is not shadow IT. Respect your organization's data policies and security requirements. Never use personal AI tools on company-issued devices without explicit approval.
Section 03

The Economics of AI Tools


Here's the framework I use to evaluate whether a tool is worth the spend. Three questions. Any tool that answers yes to all three is worth paying for.

1
Does it unlock something you couldn't do before?
Not marginal improvement — a genuine new capability. The shift from ChatGPT free to paid unlocked longer, more complex conversations. The shift to Claude unlocked agent building. The shift to Groq unlocked affordable API scale. Each spend unlocked a capability that didn't exist before it. That's the bar.
2
Does it save time worth more than its cost?
$20 a month is $240 a year. If a tool saves you one hour a month — one hour of thinking, writing, researching, debugging — and your time is worth anything at all, it has already paid for itself. Most people underestimate how much time AI tools save once they're properly integrated into a workflow. The first month feels experimental. By month three the time savings are structural.
3
Does it teach you something that compounds?
This is the one most people miss. The skills you build through using paid AI tools — prompting, building, integrating, evaluating — persist even if you cancel the subscription. The learning stays. The capability stays. You're not just buying a tool. You're buying an education that doesn't expire.
Section 04

The Free vs Paid Question


Free tiers are genuinely useful for getting started. Don't skip them. But here's what you give up by staying free:

"Start free. Learn what the tool offers. When you hit the ceiling — and you will hit it — that's the signal to pay."

Don't pay before you've hit the ceiling. Do pay immediately after.

Section 05

Context Migration


The most common reason people stay on a tool they've outgrown is the fear of losing their history — the conversations, the context, the way the tool has learned to work with them.

Here's the thing — this fear is significantly overblown.

Migrating context between AI tools is far simpler than most people expect. And the most elegant way to discover exactly how to do it?

Ask your new AI tool.

Open the tool you're considering switching to and type:

"I'm thinking of switching from [current tool] to you. How do I migrate my conversation history and context? What's the best way to bring my existing work across?"

The tool will walk you through every step — what to export, how to summarize, how to set up context in the new environment.

There's something quietly brilliant about using AI to figure out how to migrate to AI. The tool that helps you make the switch is already demonstrating why it's worth switching to.

Section 06

Building Your AI Stack Without Breaking the Bank


A few principles worth following:

Section 07

The Compounding Argument


Here's the case for investing now rather than waiting.

The skill gap between people who are actively building with AI and people who are observing from the sidelines is not linear. It's compounding.

Every month someone spends actively building — making API calls, hitting limits, switching tools, solving real problems — they're building intuition, muscle memory, and capability that someone waiting for the right moment isn't building.

"The cost of waiting isn't zero. It's the compounded value of everything you didn't learn while you were waiting for permission."

Start small. Stay invested. Let it compound.

A Note on GitHub Copilot
Your organization may already be investing in AI for you
If you work in an organization that has deployed GitHub Copilot — you already have an AI tool in your professional arsenal, likely at no personal cost. That's worth acknowledging. Not as a reason to stop investing personally — the tools you own on your own terms will always serve your learning better than tools your employer controls — but as evidence that organizational AI spend is already happening around you. The personal tools complement the professional ones. They don't replace them.
Summary

The Honest Summary


I spent roughly $60 a month on AI tools last year.

I built an AI agent. I learned to prompt properly. I understood the difference between a model and an infrastructure layer. I wrote thirty days of content that I couldn't have written at the same quality or consistency alone.

The return on that $60 a month is incalculable — not because I'm exaggerating, but because how do you calculate the value of a skill that compounds?

You can't. You can only decide whether to start.
K
About the Author
Karthik Mahadevan
Still learning. Always building.

I spend my days at the intersection of technology leadership and hands-on building — and I've learned consistently that you cannot stay superficial with anything worth mastering. PracticalX is my attempt to share what sticks — one practical nugget at a time.