diff --git a/models/deepseek/deepseek-v4-flash.yaml b/models/deepseek/deepseek-v4-flash.yaml
index b183057..a39cf20 100644
--- a/models/deepseek/deepseek-v4-flash.yaml
+++ b/models/deepseek/deepseek-v4-flash.yaml
@@ -55,7 +55,7 @@ params:
   - path: reasoning_effort
     type: enum
     label: Reasoning effort
-    description: Controls DeepSeek thinking effort when thinking mode is enabled.
+    description: Controls DeepSeek thinking effort when thinking mode is enabled. For compatibility, low, medium, and xhigh are also accepted, but low and medium are mapped to high, and xhigh is mapped to max.
     default: high
     values:
       - high