← All work

State enterprise · utilities · Solutioning · 2026

Enterprise AI Portal

One AI portal for a whole organisation, under its own domain.

Enterprise AIOpen sourceArchitecture

Problem
The TOR asked for multi-LLM access, custom agents, RBAC with SSO and very high token volumes. Commercial platform licences alone would have exceeded the budget.
Approach
Compared five architectures, then proposed a self-hosted open-source stack: a LibreChat front end, Dify as the engine, LiteLLM as the model gateway and Langfuse for observability.

How it fits together

self-hosted open source · no licence fee
StaffSSO · role-based access
LibreChatchat front end
Difycustom agents & workflows
LiteLLMmodel gateway
Langfusetokens · traces · cost
Many LLMsVertex AI and others
self-hosted open source · no licence fee
StaffSSO · role-based access
LibreChatchat front end
Difycustom agents & workflows
LiteLLMmodel gateway
Langfusetokens · traces · cost
Many LLMsVertex AI and others
Result
Full TOR coverage with zero software licence cost.
What it took
LibreChatDifyLiteLLMLangfuseVertex AI