From 22043197ba9ef4647d73377cb1fd905de58de54d Mon Sep 17 00:00:00 2001
From: Vincent Koc <vincentkoc@ieee.org>
Date: Thu, 5 Mar 2026 23:36:15 -0500
Subject: [PATCH] Models: mark GPT-5.4 as modern and xhigh

---
 src/agents/live-model-filter.test.ts | 13 +++++++++++++
 src/auto-reply/thinking.test.ts      |  5 +++++
 2 files changed, 18 insertions(+)
 create mode 100644 src/agents/live-model-filter.test.ts

diff --git a/src/agents/live-model-filter.test.ts b/src/agents/live-model-filter.test.ts
new file mode 100644
index 00000000000..eca20caca7a
--- /dev/null
+++ b/src/agents/live-model-filter.test.ts
@@ -0,0 +1,13 @@
+import { describe, expect, it } from "vitest";
+import { isModernModelRef } from "./live-model-filter.js";
+
+describe("isModernModelRef", () => {
+  it("accepts new openai gpt-5.4 refs", () => {
+    expect(isModernModelRef({ provider: "openai", id: "gpt-5.4" })).toBe(true);
+    expect(isModernModelRef({ provider: "openai", id: "gpt-5.4-pro" })).toBe(true);
+  });
+
+  it("keeps rejecting older openai refs outside the allowlist", () => {
+    expect(isModernModelRef({ provider: "openai", id: "gpt-4.1" })).toBe(false);
+  });
+});
diff --git a/src/auto-reply/thinking.test.ts b/src/auto-reply/thinking.test.ts
index 359082c2616..ef7da2df8f0 100644
--- a/src/auto-reply/thinking.test.ts
+++ b/src/auto-reply/thinking.test.ts
@@ -42,6 +42,11 @@ describe("normalizeThinkLevel", () => {
 });
 
 describe("listThinkingLevels", () => {
+  it("includes xhigh for openai gpt-5.4 refs", () => {
+    expect(listThinkingLevels("openai", "gpt-5.4")).toContain("xhigh");
+    expect(listThinkingLevels("openai", "gpt-5.4-pro")).toContain("xhigh");
+  });
+
   it("includes xhigh for codex models", () => {
     expect(listThinkingLevels(undefined, "gpt-5.2-codex")).toContain("xhigh");
     expect(listThinkingLevels(undefined, "gpt-5.3-codex")).toContain("xhigh");