diff --git a/webber-api/docs/architecture.md b/webber-api/docs/architecture.md
index 0be3e7c..efedc79 100644
--- a/webber-api/docs/architecture.md
+++ b/webber-api/docs/architecture.md
@@ -13,7 +13,7 @@ Webber is a FastAPI-based agent orchestration service that provides:
 **Port:** 8086
 **Runtime:** Python 3.12, FastAPI, Uvicorn
 **Agent Framework:** PydanticAI
-**Default LLM:** Ollama with mistral-nemo-large:latest
+**Default LLM:** Ollama with gemma4:e2b
 
 ---
 
@@ -205,7 +205,7 @@ All settings via environment variables or `.env`:
 | HOST | 0.0.0.0 | Server host |
 | PORT | 8086 | Server port |
 | OLLAMA_URL | http://192.168.86.149:11434 | Ollama API URL |
-| OLLAMA_AGENT_MODEL | mistral-nemo-large:latest | Agent reasoning model |
+| OLLAMA_AGENT_MODEL | gemma4:e2b | Agent reasoning model |
 | OLLAMA_EMBED_MODEL | nomic-embed-text:latest | Embedding model |
 | TATLOCK_API_URL | http://tatlock:8000 | Tatlock auth service |
 | SEARXNG_URL | http://searxng:8080 | SearXNG web search instance |