Master Architecture
The 5-Layer AI Ops Stack
A complete reference architecture for building production AI operations, from gateway routing to user interfaces.
5Interface
User interaction layer
Open WebUI, LibreChat, Custom Apps
4Orchestration
Agent coordination and routing
LangGraph, CrewAI, AutoGen, Oracle ADK
3Memory
Knowledge persistence and retrieval
Mem0, Graphiti, Qdrant, Oracle AI DB 26ai
2Observability
Monitoring, traces, and evaluation
Langfuse, LangSmith, Arize, OCI Monitoring
1Gateway
Unified API routing and cost control
LiteLLM, Portkey, Martian, OCI GenAI
Reference Architectures
Personal Stack
For individual AI practitioners
- Ollama (local LLM)
- Open WebUI (interface)
- ChromaDB (vectors)
- LiteLLM (routing)
Free - $50/mo
Creator Stack
For content creators and small teams
- OpenAI / Anthropic APIs
- Custom Next.js app
- Pinecone (vectors)
- Langfuse (observability)
$50 - $500/mo
Enterprise Stack
For organizations with compliance requirements
- OCI GenAI (managed)
- Oracle AI DB 26ai (vectors)
- OCI AI Blueprints (inference)
- OCI Monitoring (observability)
$500 - $50K/mo
Sovereign Stack
For regulated industries and governments
- Dedicated AI Clusters (private)
- Air-gapped OCI region
- Self-hosted vLLM
- Enterprise audit logging
$10K - $500K/mo