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Guide · Platform strategy

Build, Buy, or Partner: The AI Capability Decision

The six questions that actually decide whether to build an AI capability in-house, buy a vendor, or bring in a partner — with an honest matrix that lands on 'buy' or 'build' when that is the right call.

4 min readInteractive

Most build-versus-buy decisions get made backwards — a vendor demo impresses someone, and the reasoning gets assembled afterwards to fit.

Run the questions before the demo instead of after it, and the matrix tallies itself.

Questions
6
Possible verdicts
3
Answers stay in your browser
100%

How it works

  1. Read it in decision order

    The chapters follow the order the calls actually get made in.

  2. Check yourself as you go

    The embedded self-check scores in this browser — no account, nothing to submit.

  3. Take it into the room

    Download the PDF and bring the framing to the meeting where the decision actually gets made.

At a glance

Format
Guide
Topic
Platform strategy
Published
Reading time
4 min read
Build vs BuyAI strategyPlatform

The decision deserves better: it sets your cost base, your hiring plan, and your speed for the next several years.

Answer the six questions below — before you sit through a single vendor demo — and the matrix tallies itself. The one-page version is downloadable at the bottom, for the room where the decision actually gets made.

0 of 6 answered

1. Is this a core differentiator?

2. Do you have the team today?

3. How regulated is the data?

4. How fast do you need value?

5. Does a real vendor fit?

6. What is the budget shape?

Most AI capabilities are not your differentiator. Fraud scoring, transcription, document extraction, standard forecasting — mature vendors do these better than you will, and they maintain them while you sleep. If a real vendor fits, buy it, integrate it properly, and put your engineers on the twenty percent that is actually yours. Buying the solved parts is not the timid choice. Rebuilding a solved problem is the expensive one.

Build the part that is your differentiation — the thing the business is actually paying you for. Build when no vendor fits the real workflow, when the data cannot leave your walls (KRITIS, health, regulated finance), or when the capability compounds into a moat the longer you own it. One honest caveat: budget the maintenance tail. The build is the cheap part; owning, staffing, and evolving it for five years is the real cost, and it belongs in the business case from day one.

Partner is the specific in-between: you have the ambition and the stakes, but not the team or the timeline. A partner de-risks the first version — proving the concept before you commit a hiring plan to it — or brings a capability in-house on a schedule you could not hit alone. The test of a good partner engagement is simple: it ends with your team more capable than it started, and the capability living with you, not with the partner.

Whatever you land on, write the reasoning next to it. In eighteen months someone will ask why, and "it seemed right at the time" is not an answer that survives an audit. The six-question version is.


Download the one-page matrix to run this with your team, or book a call and we will work it through against your specifics.

The conversation after

Thirty minutes, no deck. Bring what you just answered and we work out what it means for your platform.

Discuss what this means for your decision

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