diff --git a/src/renderer/src/config/models.ts b/src/renderer/src/config/models.ts
index 6555211f14..5565584254 100644
--- a/src/renderer/src/config/models.ts
+++ b/src/renderer/src/config/models.ts
@@ -2606,7 +2606,7 @@ export const THINKING_TOKEN_MAP: Record<string, { min: number; max: number }> =
 
 export const findTokenLimit = (modelId: string): { min: number; max: number } | undefined => {
   for (const [pattern, limits] of Object.entries(THINKING_TOKEN_MAP)) {
-    if (new RegExp(pattern).test(modelId)) {
+    if (new RegExp(pattern, 'i').test(modelId)) {
       return limits
     }
   }