CTOs, Your 2024 GenAI Build-vs-Buy Playbook Is Outdated
“Build or buy the AI” is the wrong question for a CTO in 2026. The useful boundary is narrower: buy model capability until your own evidence shows that owning inference or training improves the economics. Build the evaluation, data controls, and fallback paths yourself. Those assets remain valuable when an API price changes, an open-weight model improves, or a supplier’s terms stop fitting your product.
The default has shifted from owning a model to owning the decision boundary
Two years ago, advice to prototype with an API and then train a custom model often sounded like a natural…
The skinny
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