Expose chat-latest and default Quick Question to it

server/src/llm/provider-adapters.ts

@@ -95,7 +95,7 @@ function isLikelyResponsesApiModel(model: string) {
   if (id.includes("audio") || id.includes("realtime") || id.includes("transcribe") || id.includes("tts")) return false;
   if (id.includes("image") || id.includes("dall-e") || id.includes("sora")) return false;
   if (id.includes("search") || id.includes("computer-use")) return false;
-  return /^(gpt-|o\d|chatgpt-)/.test(id);
+  return id === "chat-latest" || /^(gpt-|o\d|chatgpt-)/.test(id);
 }
 
 function isLikelyGeminiChatModel(model: string) {

server/tests/provider-adapters.test.ts

@@ -1,6 +1,50 @@
 import assert from "node:assert/strict";
 import test from "node:test";
-import { describeProviderChatBackend } from "../src/llm/provider-adapters.js";
+import { env } from "../src/env.js";
+import { describeProviderChatBackend, fetchProviderCatalogModels } from "../src/llm/provider-adapters.js";
+
+for (const { name, listedModels, expectedModels } of [
+  {
+    name: "OpenAI catalog includes chat-latest while excluding non-chat models",
+    listedModels: [
+      "gpt-4.1-mini",
+      "chat-latest",
+      "o3",
+      "chatgpt-4o-latest",
+      "chat-latest",
+      "text-embedding-3-small",
+      "omni-moderation-latest",
+      "gpt-4o-audio-preview",
+      "gpt-realtime",
+      "gpt-4o-transcribe",
+      "gpt-4o-mini-tts",
+      "gpt-image-1",
+      "chatgpt-image-latest",
+      "gpt-4o-search-preview",
+      "computer-use-preview",
+      "sora-2",
+    ],
+    expectedModels: ["chat-latest", "chatgpt-4o-latest", "gpt-4.1-mini", "o3"],
+  },
+  {
+    name: "OpenAI catalog does not invent models absent from the provider response",
+    listedModels: ["gpt-4.1-mini"],
+    expectedModels: ["gpt-4.1-mini"],
+  },
+]) {
+  test(name, async (t) => {
+    const originalKey = env.OPENAI_API_KEY;
+    env.OPENAI_API_KEY = "test-openai-key";
+    t.after(() => { env.OPENAI_API_KEY = originalKey; });
+    t.mock.method(globalThis, "fetch", async (input: RequestInfo | URL) => {
+      const url = input instanceof Request ? input.url : String(input);
+      assert.equal(url, "https://api.openai.com/v1/models");
+      return Response.json({ data: listedModels.map((id) => ({ id })) });
+    });
+
+    assert.deepEqual(await fetchProviderCatalogModels("openai"), expectedModels);
+  });
+}
 
 test("provider backend registry selects chat protocol and managed-tool mode", () => {
   assert.deepEqual(describeProviderChatBackend("openai", []), {