diff --git a/src/agents/pi-embedded-runner/model.test.ts b/src/agents/pi-embedded-runner/model.test.ts
index 1697e812214..25936e3d444 100644
--- a/src/agents/pi-embedded-runner/model.test.ts
+++ b/src/agents/pi-embedded-runner/model.test.ts
@@ -407,17 +407,6 @@ describe("resolveModel", () => {
     expect(result.model).toMatchObject(buildOpenAICodexForwardCompatExpectation("gpt-5.4"));
   });
 
-  it("builds an openai-codex fallback for gpt-5.3-codex-spark", () => {
-    mockOpenAICodexTemplateModel();
-
-    const result = resolveModel("openai-codex", "gpt-5.3-codex-spark", "/tmp/agent");
-
-    expect(result.error).toBeUndefined();
-    expect(result.model).toMatchObject(
-      buildOpenAICodexForwardCompatExpectation("gpt-5.3-codex-spark"),
-    );
-  });
-
   it("applies provider overrides to openai gpt-5.4 forward-compat models", () => {
     mockDiscoveredModel({
       provider: "openai",