Three deployment tiers
Private AI is not a single installation pattern. Three tiers are weighed against data classification, existing infrastructure, and operating capacity: the organization's own data center, private cloud or VPC, and managed services on infrastructure that stays in-house. The decision balances confidentiality requirements against the operating load the team can carry.
- On-premises: tightest data boundary, highest operating responsibility
- Private cloud / VPC: dedicated resources with flexible capacity
- Managed services: infrastructure in-house, operating duties shared
Running open-source models
Open-source models run on the organization's hardware; model weights and adaptations stay in-house. Model selection relies on comparative evaluation against the organization's own tasks rather than public leaderboards. Capacity planning is sized by model size, concurrency, and latency targets, and validated with load testing before purchase decisions.
- Model weights and adaptations in the corporate inventory
- Task-based model comparison with documented rationale
- Capacity plan driven by model size and concurrency
- Quantization and serving-layer optimization
Data boundary and access architecture
Prompts, responses, and source data do not leave the defined boundary. Model services run in segregated network zones; required external connections are inventoried, with their justification visible in the design. Access is defined through role-based rules tied to the corporate identity system and is logged.
- Network segregation and externally closed model services
- Role-based access tied to the corporate identity system
- Prompt and response logs retained in-house
- External connection inventory with recorded justification
Running models, versioning, and rollback
Installation is not a one-time task; the model must be operated throughout its lifecycle. New versions are tested against the organization's evaluation set and compared with the current version before reaching production. A rollback procedure to the previous version is defined at the start of every transition.
- Model and prompt versioning records
- Regular comparative evaluation on enterprise data
- Controlled cutover and a rollback plan
- Capacity, latency, and cost monitoring