diff --git a/src/shared/agent-variant.test.ts b/src/shared/agent-variant.test.ts
index c5f10b84a..95f501c54 100644
--- a/src/shared/agent-variant.test.ts
+++ b/src/shared/agent-variant.test.ts
@@ -115,7 +115,7 @@ describe("resolveVariantForModel", () => {
   test("returns correct variant for openai provider (hephaestus agent)", () => {
     // #given hephaestus has openai/gpt-5.3-codex with variant "medium" in its chain
     const config = {} as OhMyOpenCodeConfig
-    const model = { providerID: "openai", modelID: "gpt-5.4" }
+    const model = { providerID: "openai", modelID: "gpt-5.3-codex" }
 
     // #when
     const variant = resolveVariantForModel(config, "hephaestus", model)