Models & architecture
Proprietary model
A model controlled and usually hosted by a commercial provider.
Definition
A proprietary model exposes capability through a product or API while its weights, training process and some evaluation details remain private.
Why it matters
Provider dependency, model changes, data processing, audit rights and exit planning become material third-party risks.
Related concepts
- Open-weight model
A model whose trained parameters are available to download or host.
- Model provenance
Traceable information about where a model, its data and changes came from.
- Vendor lock-in
Difficulty moving a system away from a provider without major cost or disruption.