diff --git a/packages/core/src/plugin/provider/chatgpt.ts b/packages/core/src/plugin/provider/chatgpt.ts
index 57571aa0369..018c275d9c4 100644
--- a/packages/core/src/plugin/provider/chatgpt.ts
+++ b/packages/core/src/plugin/provider/chatgpt.ts
@@ -45,6 +45,8 @@ const fallbackModels = new Set([
   "gpt-6-sol-fast",
   "gpt-6.1-sol",
   "gpt-6.1-sol-fast",
+  "gpt-6.1-terra",
+  "gpt-6.1-terra-fast",
 ])
 const nonRetryableSharingCodes = [
   "subscription_sharing_usage_limit_exceeded",
diff --git a/packages/core/test/plugin/provider-chatgpt.test.ts b/packages/core/test/plugin/provider-chatgpt.test.ts
index f31defe013b..46fc786a53d 100644
--- a/packages/core/test/plugin/provider-chatgpt.test.ts
+++ b/packages/core/test/plugin/provider-chatgpt.test.ts
@@ -749,6 +749,8 @@ describe("ChatGPTPlugin", () => {
           "gpt-6-sol-fast",
           "gpt-6.1-sol",
           "gpt-6.1-sol-fast",
+          "gpt-6.1-terra",
+          "gpt-6.1-terra-fast",
         ])
           catalog.models.update(Provider.ID.openai, Model.ID.make(id), () => {})
       })
@@ -827,6 +829,8 @@ describe("ChatGPTPlugin", () => {
           "gpt-6-sol-fast",
           "gpt-6.1-sol",
           "gpt-6.1-sol-fast",
+          "gpt-6.1-terra",
+          "gpt-6.1-terra-fast",
         ].map((id) => Model.ID.make(id)),
       )
     }),