diff --git a/home-modules/opencode.nix b/home-modules/opencode.nix
index 1d67939..957a952 100644
--- a/home-modules/opencode.nix
+++ b/home-modules/opencode.nix
@@ -18,10 +18,10 @@
       url = "https://mcp.linear.app/mcp";
       enabled = true;
     };
-    model = "openai/gpt-5.4-fast";
+    model = "openai/gpt-5.5-fast";
     small_model = "openai/gpt-5.4-mini-fast";
-    provider.openai.models."gpt-5.4-fast".options = {
-      reasoningEffort = "xhigh";
+    provider.openai.models."gpt-5.5-fast".options = {
+      reasoningEffort = "low";
     };
     share = "disabled";
   };