diff --git a/client/session.go b/client/session.go
index 98cff9140..751fd3489 100644
--- a/client/session.go
+++ b/client/session.go
@@ -235,6 +235,7 @@ type KnowledgeQARequest struct {
 	AgentID          string   `json:"agent_id"`           // Selected custom agent ID for this request
 	WebSearchEnabled bool     `json:"web_search_enabled"` // Whether web search is enabled for this request
 	SummaryModelID   string   `json:"summary_model_id"`   // Optional summary model ID (overrides session default)
+	DisableTitle     bool     `json:"disable_title"`      // Whether to disable auto title generation
 }
 
 type ResponseType string
diff --git a/internal/handler/session/qa.go b/internal/handler/session/qa.go
index 93719473f..5d7d653a8 100644
--- a/internal/handler/session/qa.go
+++ b/internal/handler/session/qa.go
@@ -250,14 +250,14 @@ func (h *Handler) SearchKnowledge(c *gin.Context) {
 // @Router       /sessions/{session_id}/knowledge-qa [post]
 func (h *Handler) KnowledgeQA(c *gin.Context) {
 	// Parse and validate request
-	reqCtx, _, err := h.parseQARequest(c, "KnowledgeQA")
+	reqCtx, request, err := h.parseQARequest(c, "KnowledgeQA")
 	if err != nil {
 		c.Error(err)
 		return
 	}
 
-	// Execute normal mode QA
-	h.executeNormalModeQA(reqCtx, true)
+	// Execute normal mode QA, generate title unless disabled
+	h.executeNormalModeQA(reqCtx, !request.DisableTitle)
 }
 
 // AgentQA godoc
diff --git a/internal/handler/session/types.go b/internal/handler/session/types.go
index d0492ddbb..709896dc7 100644
--- a/internal/handler/session/types.go
+++ b/internal/handler/session/types.go
@@ -69,6 +69,7 @@ type CreateKnowledgeQARequest struct {
 	WebSearchEnabled bool                   `json:"web_search_enabled"`                    // Whether web search is enabled for this request
 	SummaryModelID   string                 `json:"summary_model_id"`                      // Optional summary model ID for this request (overrides session default)
 	MentionedItems   []MentionedItemRequest `json:"mentioned_items"`                       // @mentioned knowledge bases and files
+	DisableTitle     bool                   `json:"disable_title"`                         // Whether to disable auto title generation
 }
 
 // SearchKnowledgeRequest defines the request structure for searching knowledge without LLM summarization