diff --git a/frontend/src/videoCaps.js b/frontend/src/videoCaps.js
index 58d4eee..6b7c19e 100644
--- a/frontend/src/videoCaps.js
+++ b/frontend/src/videoCaps.js
@@ -14,7 +14,7 @@ export function mediaCaps(model, preset) {
   if ((model?.type || model?.kind) !== 'video') return null
   // creativefabrica 上游只收图片参考(VIDEO_FRAME_TYPE_REFERENCE),不收视频/音频;
   // 它虽然叫 seedance,但要排除,否则会错误地显示「视频 3 音频 3」。
-  const isSeedance = /^seedance/.test(model?.id || '') && (model?.provider || '') !== 'creativefabrica'
+  const isSeedance = /^seedance/.test(model?.id || '') && !['creativefabrica', 'custom'].includes(model?.provider || '')
   // preset 优先;custom 上游模型直接在模型字段里声明(max_reference_videos/audios)。
   const videos = declared(preset?.max_videos) ?? declared(model?.max_reference_videos) ?? (isSeedance ? SEEDANCE_FALLBACK.videos : 0)
   const audios = declared(preset?.max_audios) ?? declared(model?.max_reference_audios) ?? (isSeedance ? SEEDANCE_FALLBACK.audios : 0)
diff --git a/frontend/src/views/PlaygroundView.vue b/frontend/src/views/PlaygroundView.vue
index 2a90fb8..72d4247 100644
--- a/frontend/src/views/PlaygroundView.vue
+++ b/frontend/src/views/PlaygroundView.vue
@@ -144,8 +144,10 @@ const maxAudiosRaw = computed(() => {
   return m > 0 ? m : null
 })
 // creativefabrica 上游只收图片参考,没有首尾帧/视频/音频,虽叫 seedance 也要排除。
+// custom 上游模型 id 也可以 seedance 开头(管理员自定义命名),它们的上限
+// 由模型字段显式声明,不走 seedance 默认 3/3。
 const isSeedanceModel = computed(() =>
-  /^seedance/.test(model.value?.id || '') && (model.value?.provider || '') !== 'creativefabrica')
+  /^seedance/.test(model.value?.id || '') && !['creativefabrica', 'custom'].includes(model.value?.provider || ''))
 // 支持图片以外的参考资产（视频/音频）的模型：seedance 系 + 预设声明了音视频上限的
 const supportsMediaRefs = computed(() =>
   isSeedanceModel.value || maxVideosRaw.value > 0 || maxAudiosRaw.value > 0)