Grows: many systems
Each extra system means access, formats, error handling, and testing.
We quote no fixed price for AI pilots, and that is deliberate: AI pilot cost is almost always set by the workflow, not by which model is used. How many systems are involved, what the data looks like, who must approve along the way, and what must be operated afterwards - those answers set the size of the work. This guide explains each cost driver, what typically grows or shrinks scope, which questions to ask a vendor, and what we need from you for a concrete assessment.
Last updated: September 26, 2026
Scope means what the pilot must prove, and what it explicitly must not touch. A pilot answering one question - for example whether AI can triage incoming requests correctly - is different from a pilot that must triage, reply, update the CRM, and notify case workers at the same time. Each extra job needs its own data, its own tests, and its own approval rules. So we always narrow down first: one workflow, one audience, one success criterion. A narrow scope makes the pilot cheaper and the answer clearer. When the pilot ends, you know whether the solution works on exactly your data - instead of a vague feeling that something might work.
Every system the pilot must talk to adds work: access must be arranged, data formats understood, failure modes handled, and someone must test the flow end to end. A modern system with a documented API is different from a line-of-business system where integration means screen scraping, manual export, or email attachments. Count the systems honestly before asking for a price: CRM, email, archives, accounting, specialist systems, calendars, chat. The more there are, the more time goes to plumbing instead of the actual AI job. Conversely, a pilot against one system with a clean API is often surprisingly quick to stand up - then almost all time can go into answer quality.
AI never answers better than the data it can see. Tidy documents with clear titles, current procedures, and examples of correct answers make the job easy. Unstructured folders, conflicting versions, scanned PDFs that cannot be searched, and tacit knowledge that only exists in employees heads - all of it must be cleaned, structured, or collected before the pilot can prove anything. Data cleanup is rarely glamorous, but it often swallows half the pilot. Be honest about data quality when asking for an assessment: say what exists, where it lives, and who knows what is correct. A vendor who never asks about your data is pricing blind.
The more sensitive the data the pilot touches, the more must surround it: access control so the AI only sees what the user is allowed to see, logging of what was asked and answered, data processing agreements, and clarity on where data is processed. Personal data, health data, confidential cases, and childrens data all demand extra care - and sometimes a different architecture, for example one where sensitive fields never reach the model. This work is not bureaucracy; it is what lets the pilot survive daylight. Flag which data types are in play early, so security is priced in from the start instead of arriving as a surprise halfway through.
One clear user group with one need is cheap to build for. Three groups with different roles, different rights, and different wishes for what the AI should do - that is easily three small projects in one. Each role needs its own access rules, its own testing, and often its own interface: the case worker needs something different from the manager, and the customer something different again. Think through who will actually use the pilot daily, and who only needs to see results. Start with the group that feels the problem most directly. You can always extend to more groups after the pilot has proven value for the first.
A pilot answers whether something should be built - it is not a finished product. After go or no-go come the questions many forget to price: who operates the solution, who fixes bugs, who pays for model usage and storage, and who owns the code that was written? Settle ownership in writing before work starts: do you get the source code, the documentation, and the rights you need to switch vendors later? Also ask what happens to your data if the engagement ends. A pilot without an ownership agreement can grow expensive over time, even if the pilot itself was cheap. At Aprex, operations and ownership are agreed after the pilot has proven something - but the ownership frame should be clear before the first working day.
Almost every pilot changes along the way, because you learn what the data actually contains and what users actually need. That is healthy, but it costs when changes mean new scope: more systems, new user groups, or different success criteria. So agree the rules before starting: what is fixed scope, what does it cost to assess a change, and who decides whether it goes in now or waits until after the pilot? A good vendor warns early when you are outgrowing scope, and suggests what can be cut to hold the frame. Be sceptical of quotes that promise everything without describing what happens when something changes - because something always changes.
Ask the vendor to explain what is fixed scope and what is assumption. Ask which data they need access to, and what happens if data quality turns out weaker than assumed. Ask to see how they test quality: which examples, who approves, and what counts as good enough. Ask who owns the code, who operates after the pilot, and what model and operating costs typically consist of. Ask for reference projects where something went wrong, and listen to how they tell it. Finally, ask what they need from you, and how much of your own peoples time to budget. A vendor who only needs a signature and payment has not understood the job.
Send the workflow with one sentence on what takes time or creates errors today. List the systems involved, and say something about data quality as you experience it - tidy, messy, or unknown. Tell us who will use the solution, what should be different after the pilot, and whether sensitive data or approval requirements apply. Add two or three examples of typical cases or questions the solution must handle. With that, we can usually say whether the case fits a 2-6 week frame, what we would test first, and what the next step is. Without it we would have to guess - and we do not price on guesses.
Rules of thumb for what makes an AI pilot bigger or smaller. Illustration, not a pricing promise.
Each extra system means access, formats, error handling, and testing.
One source with a clean API frees time for answer quality.
Access control, logging, agreements, and stricter architecture required.
Harmless, structured data can be tested fast without heavy safeguards.
Fuzzy goals expand mid-flight and blur the answer.
One measurable claim gives a clear go or no-go after the pilot.
How to write a request vendors can actually price.
Read more →See how Aprex scopes a 2-6 week AI pilot.
Read more →Estimate from your own figures before asking for assessment.
Read more →We would rather give no price than a price we cannot stand behind. This page describes what affects the price, not what your pilot costs - we find that out together after seeing the case. Figures like 2-6 weeks describe our pilot model for scoped work, not a pricing promise.
Describe the workflow, the systems, and what should be different after the pilot.
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