Ever since Claude Code dropped, everyone thinks they’re a coder.

The narrative these past months has been hard to miss: AI coding just crossed some invisible threshold where it's not just for developers anymore, and now vibe coding is going to hollow out the entire SaaS industry.

Why pay for software when you can just build it?

It's a fun idea. It's also wrong, and I'll tell you why.

First, let’s establish that maybe 90% of SaaS are made to businesses. (I’m just guessing).

Now, the math for businesses is actually very simple:

👉 If a tool makes us more productive 👉 it makes us more money 👉 we keep paying for it.

That's the whole equation and nothing about vibe coding changes that.

Let's break it down by the 2 types of SaaS out there.

SaaS Type #1: Big Platforms

#1 you've got the big, complex platforms: your Salesforces, your SAP, your enterprise ERPs.

These things have thousands of integrations, edge cases baked in over decades, and entire support teams behind them.

The idea that someone is going to vibe code a replacement that works at scale, handles every data connection reliably, and doesn't randomly break on a Tuesday morning is genuinely funny to me.

Getting something that looks good after a few prompts is not the same as getting something that works. Businesses know this (or will come to realize it), which is why they keep their subscription.

SaaS Type #2: One-Trick Pony

#2 you've got the small, focused tools: your Calendly, your invoicing app, your scheduling software.

And no serious business is losing sleep over $10 a month.

Spending hours trying to build and maintain a custom replacement to save $120 a year is not a win, it's an embarrassing weekend project that got out of hand.

But here's the part of this conversation that almost nobody is actually talking about:

When you pay for SaaS, you're not just paying for the product.

The product is maybe 20% of what your money is going toward.

The other 80% is: support and maintenance.

If something breaks or you don't know how to do something, having a real support team to contact is worth a lot to a business.

Now, maintenance is what keeps the thing reliable and secure over time.

And then tof course here's the human factor, which might be the most obvious point of all. Most teams are still figuring out how to use the SaaS tools they already have.

The version of reality where Jane from accounting is building her own accounting software from scratch using AI prompts is not a version of reality I recognize.

Will SaaS have to evolve? Well yes for sure… As they have over the past 15 years already.

These platforms will be expected to add a real AI layer, so instead of clicking through fifteen menus to run a report, you can just ask for it in plain English.

And that’s a real and meaningful shift but it's just not the death of SaaS, only them getting an upgrade.