diff --git a/CONTEXT.md b/CONTEXT.md
index e2a93c5..6d669e7 100644
--- a/CONTEXT.md
+++ b/CONTEXT.md
@@ -113,3 +113,13 @@ For shrink-world use port `25576` and password `REDACTED_RCON`.
 - External access requires port forwarding on router: `25565` and `25566` → `192.168.0.244`
 - Web panel accessible via Caddy at `mc.sethpc.xyz`
 - DNS: Pi-hole at `192.168.0.153`
+
+---
+
+## AI / Ollama
+
+- **Ollama instance:** `192.168.0.179:11434` (CT 105, node-197, Quadro RTX 4000 8GB)
+- **Model (message + command + tool):** `gemma3n:e4b` (6.9B, Q4_K_M, GPU-accelerated)
+- **LangGraph gateway model:** `gemma3n:e4b` (was `qwen2.5:1.5b` for tools)
+- **Previous:** `192.168.0.141:11434` (steel141), `gemma3:12b` + `qwen3-coder:30b`
+- **Changed:** 2026-03-18 after bake-off showed gemma3n:e4b outperforms all tested models
diff --git a/mc_aigod_paper.json b/mc_aigod_paper.json
index 60479b6..2ae9ea6 100644
--- a/mc_aigod_paper.json
+++ b/mc_aigod_paper.json
@@ -5,9 +5,9 @@
   "rcon_host": "127.0.0.1",
   "rcon_port": 25577,
   "rcon_password": "REDACTED_RCON",
-  "ollama_url": "http://192.168.0.141:11434",
-  "model": "gemma3:12b",
-  "command_model": "qwen3-coder:30b",
+  "ollama_url": "http://192.168.0.179:11434",
+  "model": "gemma3n:e4b",
+  "command_model": "gemma3n:e4b",
   "temperature": 0.85,
   "max_tokens": 700,
   "use_langgraph_gateway": true,
diff --git a/mc_aigod_shrink.json b/mc_aigod_shrink.json
index b40eced..d34ae2d 100644
--- a/mc_aigod_shrink.json
+++ b/mc_aigod_shrink.json
@@ -4,9 +4,9 @@
   "rcon_host": "127.0.0.1",
   "rcon_port": 25576,
   "rcon_password": "REDACTED_RCON",
-  "ollama_url": "http://192.168.0.141:11434",
-  "model": "gemma3:12b",
-  "command_model": "qwen3-coder:30b",
+  "ollama_url": "http://192.168.0.179:11434",
+  "model": "gemma3n:e4b",
+  "command_model": "gemma3n:e4b",
   "temperature": 0.85,
   "max_tokens": 600,
   "cooldown_seconds": 20,
diff --git a/mc_langgraph_gateway.json b/mc_langgraph_gateway.json
index 11272c1..94b8090 100644
--- a/mc_langgraph_gateway.json
+++ b/mc_langgraph_gateway.json
@@ -1,9 +1,13 @@
 {
-  "ollama_url": "http://192.168.0.141:11434",
-  "message_model": "gemma3:12b",
-  "command_model": "qwen3-coder:30b",
-  "tool_model": "qwen2.5:1.5b",
+  "ollama_url": "http://192.168.0.179:11434",
+  "message_model": "gemma3n:e4b",
+  "command_model": "gemma3n:e4b",
+  "tool_model": "gemma3n:e4b",
   "session_ttl_seconds": 21600,
+  "rcon_host": "127.0.0.1",
+  "rcon_port": 25577,
+  "rcon_password": "REDACTED_RCON",
+  "world_observation_enabled": true,
   "session_persistence_enabled": true,
   "session_db_path": "/var/lib/mc-langgraph-gateway/sessions.db",
   "knowledge_base_dir": "/var/lib/mc-langgraph-gateway/knowledge",