diff --git a/config/opencode/config.json b/config/opencode/config.json
index 296d75a..b65dc32 100644
--- a/config/opencode/config.json
+++ b/config/opencode/config.json
@@ -9,7 +9,7 @@
         "baseURL": "http://halo.fritz.box:8000/v1"
       },
       "models": {
-        "unsloth/Qwen3.6-35B-A3B-GGUF:UD-Q8_K_XL": { "name" : "qwen3.6-35B-A3B" }
+        "unsloth/Qwen3.6-27B-GGUF:UD-Q8_K_XL": { "name" : "qwen3.6-27B" }
       }
     },
     "halo-8001": {
diff --git a/systems/x86_64-linux/halo/llama-server.nix b/systems/x86_64-linux/halo/llama-server.nix
index 9e655f1..84f1831 100644
--- a/systems/x86_64-linux/halo/llama-server.nix
+++ b/systems/x86_64-linux/halo/llama-server.nix
@@ -35,11 +35,11 @@
         "--port 8000"
         "--no-mmap"
         "--n-gpu-layers 99"
-        "-hf unsloth/Qwen3.6-35B-A3B-GGUF:UD-Q8_K_XL"
-        "--alias qwen3.6-35b-a3b"
+        "-hf unsloth/Qwen3.6-27B-GGUF:UD-Q8_K_XL"
+        "--alias qwen3.6-27b"
         "--threads 8"
         "--ubatch-size 256"
-        "-ctk q8_0 -ctv q8_0"
+        "-ctk bf16 -ctv bf16"
         "--temp 0.6 --top-p 0.95 --top-k 20 --min-p 0.00"
         "--no-context-shift"
         ''--chat-template-kwargs '{"preserve_thinking": true}' ''