diff --git a/docs/api/routes-all.md b/docs/api/routes-all.md
index e6fa21a..f59dec9 100644
--- a/docs/api/routes-all.md
+++ b/docs/api/routes-all.md
@@ -320,7 +320,7 @@ _none_
 - Returns: `200 { category: { id: int, name: str, slug: str, parentId: int, sort: int } }`
 #### Articles in category — `GET /category/{id}/articles`
 - Params: `id: int`
-- Returns: `200 { articles: { id: int, sku: str, name: str, slug: str, track_stock: bool, optionsCount: int, articleListCount: int, childCount: int, net?: num|null, taxRate?: num|null, parentArticleId?: int|null, parentSku?: str|null, fullHash?: str|null, thumbW?: int|null, thumbH?: int|null, thumbHash?: str|null, brand?: T26|null, articlewarehousesummary?: { id: int, articleId: int, warehouseId: int, stock: num, article_id?: int, warehouse_id?: int, warehouseName?: str|null }[], warehouses?: { id: int, name: str, stock: num }[] }[] }`
+- Returns: `200 { articles: { id: int, sku: str, name: str, slug: str, track_stock: bool, optionsCount: int, articleListCount: int, childCount: int, net?: num|null, taxRate?: num|null, parentArticleId?: int|null, parentSku?: str|null, fullHash?: str|null, thumbW?: int|null, thumbH?: int|null, thumbHash?: str|null, smallThumbW?: int|null, smallThumbH?: int|null, smallThumbBinary?: str|null, brand?: T26|null, articlewarehousesummary?: { id: int, articleId: int, warehouseId: int, stock: num, article_id?: int, warehouse_id?: int, warehouseName?: str|null }[], warehouses?: { id: int, name: str, stock: num }[] }[] }`
 #### List category attribute values — `GET /category/{id}/attributevalue`
 - Params: `id: int`
 - Returns: `200 { attributevalues: { id: int, attributeId: int, attributeName: str, attributeValueId: int, value: str, sort: int, categoryId?: int, exclusive?: bool }[] }`
diff --git a/docs/api/routes.md b/docs/api/routes.md
index 37736e3..a5b21b7 100644
--- a/docs/api/routes.md
+++ b/docs/api/routes.md
@@ -248,7 +248,7 @@ _none_
 - Returns: `200 { category: { id: int, name: str, slug: str, parentId: int, sort: int } }`
 #### Articles in category — `GET /category/{id}/articles`
 - Params: `id: int`
-- Returns: `200 { articles: { id: int, sku: str, name: str, slug: str, track_stock: bool, optionsCount: int, articleListCount: int, childCount: int, net?: num|null, taxRate?: num|null, parentArticleId?: int|null, parentSku?: str|null, fullHash?: str|null, thumbW?: int|null, thumbH?: int|null, thumbHash?: str|null, brand?: T20|null, articlewarehousesummary?: { id: int, articleId: int, warehouseId: int, stock: num, article_id?: int, warehouse_id?: int, warehouseName?: str|null }[], warehouses?: { id: int, name: str, stock: num }[] }[] }`
+- Returns: `200 { articles: { id: int, sku: str, name: str, slug: str, track_stock: bool, optionsCount: int, articleListCount: int, childCount: int, net?: num|null, taxRate?: num|null, parentArticleId?: int|null, parentSku?: str|null, fullHash?: str|null, thumbW?: int|null, thumbH?: int|null, thumbHash?: str|null, smallThumbW?: int|null, smallThumbH?: int|null, smallThumbBinary?: str|null, brand?: T20|null, articlewarehousesummary?: { id: int, articleId: int, warehouseId: int, stock: num, article_id?: int, warehouse_id?: int, warehouseName?: str|null }[], warehouses?: { id: int, name: str, stock: num }[] }[] }`
 #### List category attribute values — `GET /category/{id}/attributevalue`
 - Params: `id: int`
 - Returns: `200 { attributevalues: { id: int, attributeId: int, attributeName: str, attributeValueId: int, value: str, sort: int, categoryId?: int, exclusive?: bool }[] }`
diff --git a/docs/api/routes/category/articles.md b/docs/api/routes/category/articles.md
index e51271e..d2942bd 100644
--- a/docs/api/routes/category/articles.md
+++ b/docs/api/routes/category/articles.md
@@ -4,7 +4,7 @@ Protected. Requires a valid session cookie (`credentials: 'include'`).
 
 Articles in category
 
-Returns articles in a category the user is authorized for (omits child articles of a parent article), sorted alphabetically by name. Each article includes `childCount` (the number of its child articles).
+Returns articles in a category the user is authorized for (omits child articles of a parent article), sorted alphabetically by name. Each article includes `childCount` (the number of its child articles) and small thumbnail fields (`smallThumbW`, `smallThumbH`, `smallThumbBinary`).
 
 ## Path parameters
 
@@ -36,6 +36,9 @@ Articles list
       "thumbW": 1,
       "thumbH": 1,
       "thumbHash": "…",
+      "smallThumbW": 1,
+      "smallThumbH": 1,
+      "smallThumbBinary": "…",
       "brand": {
         "id": 1,
         "name": "…",
diff --git a/src/api/openapi.js b/src/api/openapi.js
index 0bcfda3..d8059aa 100644
--- a/src/api/openapi.js
+++ b/src/api/openapi.js
@@ -613,6 +613,19 @@
  *         thumbHash:
  *           type: string
  *           nullable: true
+ *         smallThumbW:
+ *           type: integer
+ *           nullable: true
+ *           description: Width in pixels of the small AVIF thumbnail
+ *         smallThumbH:
+ *           type: integer
+ *           nullable: true
+ *           description: Height in pixels of the small AVIF thumbnail
+ *         smallThumbBinary:
+ *           type: string
+ *           format: byte
+ *           nullable: true
+ *           description: Base64-encoded small AVIF thumbnail bytes
  *         brand:
  *           $ref: '#/components/schemas/ArticleBrand'
  *           nullable: true
diff --git a/src/api/routes/category.js b/src/api/routes/category.js
index 93a43dd..bbb9ba6 100644
--- a/src/api/routes/category.js
+++ b/src/api/routes/category.js
@@ -324,7 +324,7 @@ export function register(app, basePath = '') {
      *   get:
      *     tags: [Category]
      *     summary: Articles in category
-     *     description: Returns articles in a category the user is authorized for (omits child articles of a parent article), sorted alphabetically by name. Each article includes `childCount` (the number of its child articles).
+     *     description: Returns articles in a category the user is authorized for (omits child articles of a parent article), sorted alphabetically by name. Each article includes `childCount` (the number of its child articles) and small thumbnail fields (`smallThumbW`, `smallThumbH`, `smallThumbBinary`).
      *     security:
      *       - cookieAuth: []
      *     x-markdown: category/articles.md
@@ -382,6 +382,9 @@ export function register(app, basePath = '') {
                     ...a,
                     childCount: Number(a.childCount ?? 0),
                     isParent: Boolean(a.isParent ?? a.is_parent),
+                    smallThumbW: a.smallThumbW ?? null,
+                    smallThumbH: a.smallThumbH ?? null,
+                    smallThumbBinary: a.smallThumbBinary ?? null,
                 }))
                 .sort((a, b) => (a.name ?? '').localeCompare(b.name ?? '') || a.id - b.id);
             res.status(200).json({ articles });