diff --git a/extensions/opencode-go/index.test.ts b/extensions/opencode-go/index.test.ts
index 38fc60f8c31f..164fe35df95c 100644
--- a/extensions/opencode-go/index.test.ts
+++ b/extensions/opencode-go/index.test.ts
@@ -182,6 +182,12 @@ describe("opencode-go provider plugin", () => {
     expect(qwen37Plus.reasoning).toBe(true);
     expect(qwen37Plus.contextWindow).toBe(1_000_000);
     expect(qwen37Plus.maxTokens).toBe(65_536);
+    expect(qwen37Plus.cost).toMatchObject({
+      input: 0.4,
+      output: 1.6,
+      cacheRead: 0.04,
+      cacheWrite: 0.5,
+    });
 
     const dynamicModel = requireRecord(
       provider.resolveDynamicModel?.({