diff --git a/src/apps/chat/components/message/fragments-content/ContentFragments.tsx b/src/apps/chat/components/message/fragments-content/ContentFragments.tsx
index 0bd5fcb95..395a450d7 100644
--- a/src/apps/chat/components/message/fragments-content/ContentFragments.tsx
+++ b/src/apps/chat/components/message/fragments-content/ContentFragments.tsx
@@ -149,6 +149,10 @@ export function ContentFragments(props: {
           //   return null;
 
           case 'ma':
+            // skip rendering empty reasoning fragments (created as vehicles for vendor state / reasoning continuity)
+            const isActivelyStreaming = isLastFragment && !!props.messagePendingIncomplete;
+            if (!part.aText && !part.redactedData?.length && !isActivelyStreaming)
+              return null;
             const BlockPartModelAuxMemoOrNot = optimizeMemoBeforeLastBlock ? BlockPartModelAuxMemo : BlockPartModelAux;
             return (
               <BlockPartModelAuxMemoOrNot