# AI Model Chain — IT Pro Partner

**Updated:** July 21, 2026
**Gateways:** admin-ai (self-hosted LiteLLM), OpenRouter, DeepSeek, Google, xAI

## Chain

| # | Model | Provider | Key Status |
|---|---|---|---|
| Primary | GPT-5.5 | admin-ai | ✅ `sk-aEJ...` |
| F1 | GPT-5.5 | OpenRouter | ✅ `sk-or-v1...` |
| F2 | DeepSeek v4 Pro | DeepSeek | ✅ `sk-0387...` |
| F3 | Gemini 3.5 Flash | Google | ✅ |
| F4 | Grok 4.5 | xAI | ✅ |

## Admin-AI (LiteLLM)
- URL: `admin-ai.itpropartner.com` (app1, 152.53.36.131)
- Master key: in `/root/docker/litellm/.env`
- Hermes virtual key: `sk-aEJ-7PAPT0C8iqZi3witzA` (GPT-5.5 + DeepSeek v4 Pro)

## Credential Storage
- Config: `/root/.hermes/config.yaml`
- Hudu: KB article #39 — "AI Model Chain v2" (if token working)
- Git: `itpp-infrastructure/docs/model-chain.md`