This diagram shows an agentic framework for high-fidelity, conversational AI with natural language to SQL on Oracle Cloud Infrastructure (OCI). The process flow shown in the diagram is described in the surrounding text.

• Application layer
  • The front end uses APEX Service and includes a chat interface and Oracle JET charts.
  • The front end connects to the OCI API Gateway by using representational state transfer (REST) application programming interface (API) calls.
• API/Access layer
  • Oracle Cloud Infrastructure Web Application Firewall (WAF) protects the OCI API Gateway.
  • OCI Identity and Access Management (IAM) and policies secure access to the OCI API Gateway.
• AI layer
  • AI integration uses an OCI Compute virtual machine and LangChain to call large language models (LLMs) by using REST API endpoints.
  • OCI Generative AI chat models provide LLMs and connect to OCI Generative AI embedding models.
  • OCI Generative AI embedding models connect to Oracle Autonomous AI Database.
• AI data layer

  Oracle Autonomous AI Database stores embeddings and model outputs and connects to OCI Generative AI embedding models.

• Customer data

  Oracle Exadata Database Service holds customer data and connects to Oracle Autonomous AI Database by using a database link. I also houses a standard database with customer data.