What £5 a Month Infrastructure Actually Looks Like

The line items

Every system we build runs on globally distributed edge infrastructure. No traditional servers. No monthly hosting bills that scale with traffic. Here is the actual cost breakdown for a typical AIOS serving a 20 person business:

Six of the seven line items are genuinely free. Not "free trial" free. Not "free for 30 days" free. Free on the permanent tier, with generous limits that cover normal business usage comfortably. The only variable cost is the premium AI layer, and even that runs to a few pounds a month at typical volumes.

How is this possible?

The short answer: the infrastructure model changed and most people have not noticed yet.

Traditional hosting runs on servers. You rent a machine (or a fraction of one), it sits there consuming electricity and memory whether anyone is using it or not, and you pay a fixed monthly fee. If traffic spikes, you pay more. If nobody visits for a week, you still pay the same.

Edge infrastructure works differently. Your code runs on a global network of data centres. It only executes when someone actually makes a request. Between requests, it costs nothing. There is no idle server burning electricity in a rack. The billing is based on what you use, and for a 20 person business, what you use is almost nothing in infrastructure terms.

What the traditional approach costs

For comparison, here is what the same system would cost on traditional infrastructure or managed platforms:

A small VPS on a major cloud provider starts at £10 to £20 a month. Add a managed database (£15 to £50), file storage (£5 to £15), and a monitoring service (£10 to £30), and you are at £50 to £100 before you have written a line of code. Scale it up for production reliability (redundancy, backups, load balancing) and the number climbs to £150 to £250.

SaaS platforms are even more expensive. A custom-built CRM on a managed platform runs £30 to £80 per user per month. At 20 users, that is £600 to £1,600 a month for a single tool.

What the limits actually are

Free tiers have limits. The question is whether those limits matter at business scale. For most SMBs, they do not.

• Compute: 100,000 requests per day. A 20 person team making heavy use of their dashboard generates a few thousand requests per day at most.
• Database: 5 GB of storage, 150 million reads per month. A business database with 50,000 records uses a fraction of this.
• File storage: 10 GB on the free tier. Enough for thousands of documents. If a client needs more, the paid tier costs pennies per gigabyte.
• AI: 10,000 free inference requests per day. Most businesses will use a few hundred.

The system does not run out of headroom at 20 people. It runs out of headroom at 200. And by then, the paid tiers add single-digit pounds per month, not hundreds.

What happens as you grow

This is the part that surprises people most. Because there are no per-seat fees, adding users does not increase the cost. Hire ten more people, give them all access, and the infrastructure bill stays the same. The only thing that moves the cost is raw usage (requests, storage, AI calls), and usage from a growing team is a gentle curve, not a cliff.

A business that goes from 20 to 50 employees might see their monthly infrastructure cost move from £4 to £8. Compare that with a SaaS platform where adding 30 seats at £30 each adds £900 per month.

The catch

There is one. The upfront build costs more than signing up for a SaaS tool. A foundation AIOS starts at £4,500. That is a real investment.

But run the numbers over 12 months. A SaaS stack for 20 people at £200 a month is £2,400 per year and climbing. A custom AIOS is £4,500 once, then £60 per year in infrastructure. By month 19, the AIOS is cheaper. By year three, it has saved thousands. And you own it outright.