diff --git a/src/opencodeService.ts b/src/opencodeService.ts
index a1aa652..2bb1094 100644
--- a/src/opencodeService.ts
+++ b/src/opencodeService.ts
@@ -80,7 +80,7 @@ Generate a concise Conventional Commit message for these changes:`;
             "--format",
             "default",
             "-m",
-            "opencode/gpt-5-nano",
+            "opencode/deepseek-v4-flash-free",
             "--variant",
             "minimal",
         ];