The open vs. closed model debate is really about managed vs. self-hosted AI infra
soleio · x · 2026-07-25
Open vs. closed models is really a managed vs. self-hosted infrastructure debate
The post argues that the open-weight vs. closed-model debate misses the real choice many companies face: managed AI infrastructure vs. self-hosting.
- A company may choose an open-weight model so it can do additional training with its own data and domain knowledge.
- That requires more than model weights: it needs software for training and serving, such as tools like Tinker and SGLang.
- Once trained, the model still has to be deployed for customers, which may involve an inference partner.
- But if ownership and control matter, the company may want to own the hardware, storage, infra operations, and secure GPU capacity itself.
The broader point is that “open” is not just a model question — it is an infrastructure stack question, and much of that stack is still not open source.
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