Source
The Startup Ideas Podcast — How Will People Make Money in the AI Age? (October 6, 2026) ·
at 9:08 ▸
When this applies
when building any product on top of a commoditizing core technology
The takeaway
As the core technology commoditizes, value shifts to the surrounding system (tools, workflows, memory, domain knowledge) built around it, not the core technology itself.
Why it works
The underlying model is a fast-improving but generic engine; wrapping it with industry-specific tools, workflow rules, memory, and checks turns a generic capability into something that understands a specific domain, which is where durable value accrues.
One level up
Durable differentiation comes from the accumulated context and workflow around a commodity engine, not the engine.
Where it stops holding
This stops working when the underlying model itself becomes capable enough to natively absorb the surrounding workflow logic, erasing the need for a separate harness layer.
Detail
approach: Think of the model as the engine (how fast it goes) and the harness as everything else — tools it can access, workflow rules, memory, checks — the body, steering wheel, paint, electrical.
signals:- started as a wrapper around one model
- added industry tools, workflow rules, memory over time
- became indispensable even as the underlying model improved
rationale: Harnesses are described as 'the new GPT wrapper' — most wrapper startups failed, but the top ~10% evolved into true harnesses with lasting value.
In their words
I think of the harness as the tools it can access, the workflow rules, the memory, the checks, basically everything around the. the engine,