Custom OpenAI API Support for AI Foundry

[DanielQ-CV]

Add Support for Custom OpenAI-Compatible APIs in Ai Foundry/Copilot Studio

Summary

Can't use custom OpenAI-compatible endpoints (LiteLLM, OpenRouter) in AI Foundry/Copilot Studio, despite them being fully compatible with OpenAI API standard.

Current Gap

• ✅ Can create "Custom Connections" in AI Foundry
• ❌ Can't register models from these connections

Request

Add ability to:

1. Register custom OpenAI-compatible endpoint (URL + API key)
2. Auto-discover models via /v1/models endpoint
3. Use these models in Copilot Studio & Prompt Flow

Use Case

Using LiteLLM Proxy to access multiple LLM providers through unified interface, want to use these in Copilot Studio without workaround code.

Is this possible or planned?