Should you build your own AI stack or use a managed platform? It’s the classic build-vs-buy question, applied to AI. Here’s an honest comparison for UK businesses in 2026. (dgm implements osFoundry as an independent partner; we’ll be fair about the trade-offs.)
What “building your own” involves
A DIY AI stack typically means assembling:
- an orchestration framework (e.g. LangChain);
- a vector database for retrieval;
- model access (APIs or self-hosted);
- data pipelines, a UI, security and governance; and
- the glue code connecting it all — plus ongoing maintenance.
Powerful and fully controlled — but a substantial engineering and operational commitment.
What osFoundry provides
osFoundry is a managed platform with orchestration prebuilt — chat, agents, retrieval/knowledge, apps — that you configure rather than build. (osFoundry’s own materials draw this contrast: “osFoundry is a managed platform with the orchestration prebuilt” vs assembling and operating it yourself.) Far less to build and operate.
The trade-off: control vs effort
| Build your own | osFoundry | |
|---|---|---|
| Control | Maximum | High (configurable) |
| Effort | High (build + maintain) | Lower (prebuilt) |
| Maintenance | Yours, ongoing | Managed runtime |
| Best for | Strong engineering, unique needs | Faster adoption |
Is DIY cheaper?
Not necessarily. You avoid platform fees but take on engineering, integration, maintenance and operations — often larger and ongoing. Model the full cost (including engineering time) before assuming DIY is cheaper. (See total cost of ownership.)
Data control either way
Both can self-host for UK data control. A DIY stack runs wherever you deploy (full control, full responsibility); osFoundry self-hosts in your own cloud while osFoundry maintains the runtime — combining data control with managed updates.
Which should a UK business choose?
- Build your own — teams with strong engineering and genuinely unique needs wanting maximum control.
- osFoundry — businesses wanting faster adoption with far less build-and-maintain effort, while keeping data control.
dgm is an independent integration partner with zero integrations so far — we’ll advise honestly if building your own genuinely fits better. To decide, book a consultation with dgm. General information; verify current vendor details.