“Should we build our own AI or buy something?” is one of the first strategic AI decisions — and both extremes are usually wrong. Here’s how to think about it in 2026. (dgm implements osFoundry as an independent partner.)
The two extremes — and why both usually disappoint
Build everything in-house: rarely pays off for most businesses. It’s expensive, slow, and needs scarce talent — and you’d be rebuilding what platforms already provide.
Buy a single closed tool: fast, but risks lock-in and limited flexibility — you’re tied to one vendor’s models, pricing and roadmap, and switching is costly.
Most businesses that pick an extreme regret it.
The pragmatic middle: configure and integrate
The approach that works for most: a flexible platform you configure (not code) and integrate with your systems. You get much of the control of building — choosing models, adjusting prompts, routing, retrieval and workflows — with far less cost and risk than building from scratch, and without the lock-in of a single closed tool.
This “configure, don’t code” middle path is where most successful AI adoption actually lands.
Build only your differentiator
The one thing worth building in-house: a capability that is a genuine, defensible differentiator — core to your value and unavailable off-the-shelf. Even then, you build on top of existing models and infrastructure, not from the ground up. For everything that isn’t your differentiator, buying or integrating is faster and cheaper.
A simple test: would building this win us customers, or just cost us money? If the latter, don’t build it.
Keep optionality whatever you choose
If you buy or integrate, favour platforms that are multi-model, bring-your-own-key and source-available, so you keep the ability to switch and aren’t hostage to one vendor. (See how to avoid vendor lock-in.)
Where osFoundry and dgm fit
dgm implements the configure-and-integrate middle path on osFoundry: a platform you configure rather than build (osStudio for prompts, routing, retrieval), that’s multi-model and bring-your-own-key (no single-vendor lock-in), source-available, and self-hostable in your own cloud or an EU region for UK data control (it publishes US/EU/JP regions, not a UK one). We help you decide what — if anything — is genuinely worth building in-house.
dgm is an independent integration partner with zero integrations so far. To work through build vs buy for your situation, book a consultation with dgm. General information, not specific advice.