diff --git a/hosts/nixos/kafka.nix b/hosts/nixos/kafka.nix
index fe29484..fa9e1de 100644
--- a/hosts/nixos/kafka.nix
+++ b/hosts/nixos/kafka.nix
@@ -59,7 +59,7 @@
         defaults = {
           workspace = "/home/kafka/openclaw/workspace";
           model = {
-            primary = "zai/glm-4.7";
+            primary = "cli/gemini-3.1-pro-preview";
           };
         };
       };
diff --git a/modules/nixos/openclaw.nix b/modules/nixos/openclaw.nix
index 958f5bb..476e082 100644
--- a/modules/nixos/openclaw.nix
+++ b/modules/nixos/openclaw.nix
@@ -127,7 +127,7 @@ in
           "agents": {
             "defaults": {
               "workspace": "${cfg.dataDir}/workspace",
-              "model": { "primary": "zai/glm-4.7" },
+              "model": { "primary": "cli/gemini-3.1-pro-preview" },
               "memorySearch": {
                 "enabled": true,
                 "provider": "local",