From 2becdb4a56e7683ae08aef927cec1c6c52dfad5e Mon Sep 17 00:00:00 2001
From: josh <144584931+dancer@users.noreply.github.com>
Date: Mon, 18 May 2026 15:08:46 +0100
Subject: [PATCH] fix(chat): drop mistral models and harden title generation
 (#1498)

---
 app/(chat)/api/chat/route.ts | 10 +++++++---
 lib/ai/models.ts             | 22 ++++------------------
 2 files changed, 11 insertions(+), 21 deletions(-)

diff --git a/app/(chat)/api/chat/route.ts b/app/(chat)/api/chat/route.ts
index ac52197..eb70454 100644
--- a/app/(chat)/api/chat/route.ts
+++ b/app/(chat)/api/chat/route.ts
@@ -244,9 +244,13 @@ export async function POST(request: Request) {
         );
 
         if (titlePromise) {
-          const title = await titlePromise;
-          dataStream.write({ type: "data-chat-title", data: title });
-          updateChatTitleById({ chatId: id, title });
+          try {
+            const title = await titlePromise;
+            dataStream.write({ type: "data-chat-title", data: title });
+            updateChatTitleById({ chatId: id, title });
+          } catch (_) {
+            /* non-fatal */
+          }
         }
       },
       generateId: generateUUID,
diff --git a/lib/ai/models.ts b/lib/ai/models.ts
index 6603dba..eac9514 100644
--- a/lib/ai/models.ts
+++ b/lib/ai/models.ts
@@ -1,11 +1,11 @@
 export const DEFAULT_CHAT_MODEL = "moonshotai/kimi-k2.5";
 
 export const titleModel = {
-  id: "mistral/mistral-small",
-  name: "Mistral Small",
-  provider: "mistral",
+  id: "moonshotai/kimi-k2.5",
+  name: "Kimi K2.5",
+  provider: "moonshotai",
   description: "Fast model for title generation",
-  gatewayOrder: ["mistral"],
+  gatewayOrder: ["fireworks", "bedrock"],
 };
 
 export type ModelCapabilities = {
@@ -31,20 +31,6 @@ export const chatModels: ChatModel[] = [
     description: "Fast and capable model with tool use",
     gatewayOrder: ["bedrock", "deepinfra"],
   },
-  {
-    id: "mistral/codestral",
-    name: "Codestral",
-    provider: "mistral",
-    description: "Code-focused model with tool use",
-    gatewayOrder: ["mistral"],
-  },
-  {
-    id: "mistral/mistral-small",
-    name: "Mistral Small",
-    provider: "mistral",
-    description: "Fast vision model with tool use",
-    gatewayOrder: ["mistral"],
-  },
   {
     id: "moonshotai/kimi-k2.5",
     name: "Kimi K2.5",