diff --git a/packages/opencode/src/plugin/github-copilot/models.ts b/packages/opencode/src/plugin/github-copilot/models.ts
index bf89f1c0dc2..3b8a62ea052 100644
--- a/packages/opencode/src/plugin/github-copilot/models.ts
+++ b/packages/opencode/src/plugin/github-copilot/models.ts
@@ -129,8 +129,8 @@ function build(key: string, remote: Item, url: string, prev?: Model): Model {
             // kilocode_change start - treat opus-4.8, fable, and sonnet-5 like opus-4.7
             ...(model.api.id.includes("opus-4.7") ||
             model.api.id.includes("opus-4.8") ||
-            model.api.id.toLowerCase().includes("fable") ||
-            /sonnet[.-]5/.test(model.api.id.toLowerCase())
+            model.api.id.includes("fable") ||
+            model.api.id.includes("sonnet-5")
               ? { display: "summarized" }
               : {}),
             // kilocode_change end