diff --git a/backend/internal/repository/group_repo.go b/backend/internal/repository/group_repo.go
index b5de46353d..125456cd59 100644
--- a/backend/internal/repository/group_repo.go
+++ b/backend/internal/repository/group_repo.go
@@ -103,6 +103,7 @@ func createGroupRecord(ctx context.Context, client *dbent.Client, groupIn *servi
 		SetMcpXMLInject(groupIn.MCPXMLInject).
 		SetAllowMessagesDispatch(groupIn.AllowMessagesDispatch).
 		SetAllowLive(groupIn.AllowLive).
+		SetForceOpenaiFast(groupIn.ForceOpenAIFast).
 		SetRequireOauthOnly(groupIn.RequireOAuthOnly).
 		SetRequirePrivacySet(groupIn.RequirePrivacySet).
 		SetDefaultMappedModel(groupIn.DefaultMappedModel).
@@ -279,6 +280,7 @@ func (r *groupRepository) Update(ctx context.Context, groupIn *service.Group) er
 		SetMcpXMLInject(groupIn.MCPXMLInject).
 		SetAllowMessagesDispatch(groupIn.AllowMessagesDispatch).
 		SetAllowLive(groupIn.AllowLive).
+		SetForceOpenaiFast(groupIn.ForceOpenAIFast).
 		SetRequireOauthOnly(groupIn.RequireOAuthOnly).
 		SetRequirePrivacySet(groupIn.RequirePrivacySet).
 		SetDefaultMappedModel(groupIn.DefaultMappedModel).
diff --git a/backend/internal/service/group.go b/backend/internal/service/group.go
index bf0440afc3..8703057377 100644
--- a/backend/internal/service/group.go
+++ b/backend/internal/service/group.go
@@ -100,6 +100,7 @@ type Group struct {
 	// OpenAI Messages 调度配置（仅 openai 平台使用）
 	AllowMessagesDispatch       bool
 	AllowLive                   bool
+	ForceOpenAIFast             bool // 强制 OpenAI 网关请求使用 service_tier=priority
 	RequireOAuthOnly            bool // 仅允许非 apikey 类型账号关联（OpenAI/Antigravity/Anthropic/Gemini）
 	RequirePrivacySet           bool // 调度时仅允许 privacy 已成功设置的账号（OpenAI/Antigravity/Anthropic/Gemini）
 	DefaultMappedModel          string