diff --git a/internal/providers/configs/zai.json b/internal/providers/configs/zai.json
index 5aa9f7947149f272d9fcb75d4ff96ca1b01f8c84..76da1e0c1e8d4746df7bea9b327cf1d2d7f527b8 100644
--- a/internal/providers/configs/zai.json
+++ b/internal/providers/configs/zai.json
@@ -13,7 +13,7 @@
       "cost_per_1m_in": 1.0,
       "cost_per_1m_out": 3.2,
       "cost_per_1m_in_cached": 0.2,
-      "context_window": 131072,
+      "context_window": 204800,
       "default_max_tokens": 65536,
       "can_reason": true,
       "supports_attachments": false