diff --git a/neo/api.go b/neo/api.go
index 5e7c46ca..04c2c70d 100644
--- a/neo/api.go
+++ b/neo/api.go
@@ -285,7 +285,12 @@ func (neo *DSL) handleChatList(c *gin.Context) {
 		}
 	}
 
-	response, err := neo.Store.GetChats(sid, filter)
+	locale := "en-us"
+	if loc := c.Query("locale"); loc != "" {
+		locale = strings.ToLower(strings.TrimSpace(loc))
+	}
+
+	response, err := neo.Store.GetChats(sid, filter, locale)
 	if err != nil {
 		c.JSON(500, gin.H{"message": err.Error(), "code": 500})
 		c.Done()
@@ -483,19 +488,19 @@ func (neo *DSL) handleChatLatest(c *gin.Context) {
 		return
 	}
 
+	locale := "en-us"
+	if loc := c.Query("locale"); loc != "" {
+		locale = strings.ToLower(strings.TrimSpace(loc))
+	}
+
 	// Get the chats
-	chats, err := neo.Store.GetChats(sid, store.ChatFilter{Page: 1})
+	chats, err := neo.Store.GetChats(sid, store.ChatFilter{Page: 1}, locale)
 	if err != nil {
 		c.JSON(500, gin.H{"message": err.Error(), "code": 500})
 		c.Done()
 		return
 	}
 
-	locale := "en-us"
-	if loc := c.Query("locale"); loc != "" {
-		locale = strings.ToLower(strings.TrimSpace(loc))
-	}
-
 	// Create a new chat
 	if len(chats.Groups) == 0 || len(chats.Groups[0].Chats) == 0 {
 
@@ -516,7 +521,7 @@ func (neo *DSL) handleChatLatest(c *gin.Context) {
 		c.JSON(200, map[string]interface{}{"data": map[string]interface{}{
 			"placeholder":          ast.GetPlaceholder(locale),
 			"assistant_id":         ast.ID,
-			"assistant_name":       ast.Name,
+			"assistant_name":       ast.GetName(locale),
 			"assistant_avatar":     ast.Avatar,
 			"assistant_deleteable": neo.Use.Default != ast.ID,
 		}})
@@ -532,7 +537,7 @@ func (neo *DSL) handleChatLatest(c *gin.Context) {
 		return
 	}
 
-	chat, err := neo.Store.GetChat(sid, chatID)
+	chat, err := neo.Store.GetChat(sid, chatID, locale)
 	if err != nil {
 		c.JSON(500, gin.H{"message": err.Error(), "code": 500})
 		c.Done()
@@ -550,7 +555,7 @@ func (neo *DSL) handleChatLatest(c *gin.Context) {
 			c.Done()
 			return
 		}
-		chat.Chat["assistant_name"] = ast.Name
+		chat.Chat["assistant_name"] = ast.GetName(locale)
 		chat.Chat["assistant_avatar"] = ast.Avatar
 	}
 
@@ -575,7 +580,13 @@ func (neo *DSL) handleChatDetail(c *gin.Context) {
 		return
 	}
 
-	chat, err := neo.Store.GetChat(sid, chatID)
+	locale := "en-us"
+	if loc := c.Query("locale"); loc != "" {
+		locale = strings.ToLower(strings.TrimSpace(loc))
+	}
+
+	// Get the chat details
+	chat, err := neo.Store.GetChat(sid, chatID, locale)
 	if err != nil {
 		c.JSON(500, gin.H{"message": err.Error(), "code": 500})
 		c.Done()
@@ -593,7 +604,7 @@ func (neo *DSL) handleChatDetail(c *gin.Context) {
 			c.Done()
 			return
 		}
-		chat.Chat["assistant_name"] = ast.Name
+		chat.Chat["assistant_name"] = ast.GetName(locale)
 		chat.Chat["assistant_avatar"] = ast.Avatar
 	}
 
@@ -611,6 +622,11 @@ func (neo *DSL) handleMentions(c *gin.Context) {
 		return
 	}
 
+	locale := "en-us"
+	if loc := c.Query("locale"); loc != "" {
+		locale = strings.ToLower(strings.TrimSpace(loc))
+	}
+
 	// Get keywords from query parameter
 	keywords := strings.ToLower(c.Query("keywords"))
 	mentionable := true
@@ -623,7 +639,7 @@ func (neo *DSL) handleMentions(c *gin.Context) {
 		PageSize:    20,
 	}
 
-	response, err := neo.Store.GetAssistants(filter)
+	response, err := neo.Store.GetAssistants(filter, locale)
 	if err != nil {
 		c.JSON(500, gin.H{"message": err.Error(), "code": 500})
 		c.Done()
diff --git a/neo/assistant/api.go b/neo/assistant/api.go
index 5028095e..240537c9 100644
--- a/neo/assistant/api.go
+++ b/neo/assistant/api.go
@@ -274,6 +274,16 @@ func (ast *Assistant) GetPlaceholder(locale string) *Placeholder {
 	}
 }
 
+// GetName returns the name of the assistant
+func (ast *Assistant) GetName(locale string) string {
+	return i18n.Translate(ast.ID, locale, ast.Name).(string)
+}
+
+// GetDescription returns the description of the assistant
+func (ast *Assistant) GetDescription(locale string) string {
+	return i18n.Translate(ast.ID, locale, ast.Description).(string)
+}
+
 // Call implements the call functionality
 func (ast *Assistant) Call(c *gin.Context, payload APIPayload) (interface{}, error) {
 	scriptCtx, err := ast.Script.NewContext(payload.Sid, nil)
@@ -521,7 +531,7 @@ func (ast *Assistant) streamChat(
 				output.Retry = ctx.Retry   // Retry mode
 				output.Silent = ctx.Silent // Silent mode
 				if isFirst {
-					output.Assistant(ast.ID, ast.Name, ast.Avatar)
+					output.Assistant(ast.ID, ast.GetName(ctx.Locale), ast.Avatar)
 					isFirst = false
 				}
 
@@ -542,7 +552,7 @@ func (ast *Assistant) streamChat(
 					chatMessage.New().
 						Map(map[string]interface{}{
 							"assistant_id":     ast.ID,
-							"assistant_name":   ast.Name,
+							"assistant_name":   ast.GetName(ctx.Locale),
 							"assistant_avatar": ast.Avatar,
 							"text":             delta,
 							"type":             "text",
@@ -731,7 +741,7 @@ func (ast *Assistant) saveChatHistory(ctx chatctx.Context, messages []chatMessag
 				"content":          contents.JSON(),
 				"name":             ast.ID,
 				"assistant_id":     ast.ID,
-				"assistant_name":   ast.Name,
+				"assistant_name":   ast.GetName(ctx.Locale),
 				"assistant_avatar": ast.Avatar,
 			},
 		}
diff --git a/neo/assistant/load_test.go b/neo/assistant/load_test.go
index 513f70af..17503e5b 100644
--- a/neo/assistant/load_test.go
+++ b/neo/assistant/load_test.go
@@ -370,17 +370,19 @@ func (m *mockStore) DeleteChat(id string, chatID string) error { return nil }
 func (m *mockStore) GetAssistants(filter store.AssistantFilter, locale ...string) (*store.AssistantResponse, error) {
 	return nil, nil
 }
-func (m *mockStore) GetChat(id string, chatID string) (*store.ChatInfo, error) { return nil, nil }
-func (m *mockStore) GetChatWithFilter(id string, chatID string, filter store.ChatFilter) (*store.ChatInfo, error) {
+func (m *mockStore) GetChat(id string, chatID string, locale ...string) (*store.ChatInfo, error) {
 	return nil, nil
 }
-func (m *mockStore) GetChats(id string, filter store.ChatFilter) (*store.ChatGroupResponse, error) {
+func (m *mockStore) GetChatWithFilter(id string, chatID string, filter store.ChatFilter, locale ...string) (*store.ChatInfo, error) {
 	return nil, nil
 }
-func (m *mockStore) GetHistory(id string, chatID string) ([]map[string]interface{}, error) {
+func (m *mockStore) GetChats(id string, filter store.ChatFilter, locale ...string) (*store.ChatGroupResponse, error) {
 	return nil, nil
 }
-func (m *mockStore) GetHistoryWithFilter(id string, chatID string, filter store.ChatFilter) ([]map[string]interface{}, error) {
+func (m *mockStore) GetHistory(id string, chatID string, locale ...string) ([]map[string]interface{}, error) {
+	return nil, nil
+}
+func (m *mockStore) GetHistoryWithFilter(id string, chatID string, filter store.ChatFilter, locale ...string) ([]map[string]interface{}, error) {
 	return nil, nil
 }
 func (m *mockStore) SaveAssistant(assistant map[string]interface{}) (interface{}, error) {
diff --git a/neo/context/context.go b/neo/context/context.go
index 979c7762..50ac2777 100644
--- a/neo/context/context.go
+++ b/neo/context/context.go
@@ -154,6 +154,12 @@ func WithClientType(ctx Context, clientType string) Context {
 	return ctx
 }
 
+// WithLocale set the locale
+func WithLocale(ctx Context, locale string) Context {
+	ctx.Locale = locale
+	return ctx
+}
+
 // WithHistoryVisible set the history visible
 func WithHistoryVisible(ctx Context, historyVisible bool) Context {
 	ctx.HistoryVisible = historyVisible
diff --git a/neo/store/mongo.go b/neo/store/mongo.go
index 2202d003..d5a150ad 100644
--- a/neo/store/mongo.go
+++ b/neo/store/mongo.go
@@ -9,27 +9,27 @@ func NewMongo() Store {
 }
 
 // GetChats retrieves a list of chats
-func (m *Mongo) GetChats(sid string, filter ChatFilter) (*ChatGroupResponse, error) {
+func (m *Mongo) GetChats(sid string, filter ChatFilter, locale ...string) (*ChatGroupResponse, error) {
 	return &ChatGroupResponse{}, nil
 }
 
 // GetChat retrieves a single chat's information
-func (m *Mongo) GetChat(sid string, cid string) (*ChatInfo, error) {
+func (m *Mongo) GetChat(sid string, cid string, locale ...string) (*ChatInfo, error) {
 	return &ChatInfo{}, nil
 }
 
 // GetChatWithFilter retrieves a single chat's information with filter options
-func (m *Mongo) GetChatWithFilter(sid string, cid string, filter ChatFilter) (*ChatInfo, error) {
+func (m *Mongo) GetChatWithFilter(sid string, cid string, filter ChatFilter, locale ...string) (*ChatInfo, error) {
 	return &ChatInfo{}, nil
 }
 
 // GetHistory retrieves chat history
-func (m *Mongo) GetHistory(sid string, cid string) ([]map[string]interface{}, error) {
+func (m *Mongo) GetHistory(sid string, cid string, locale ...string) ([]map[string]interface{}, error) {
 	return []map[string]interface{}{}, nil
 }
 
 // GetHistoryWithFilter retrieves chat history with filter options
-func (m *Mongo) GetHistoryWithFilter(sid string, cid string, filter ChatFilter) ([]map[string]interface{}, error) {
+func (m *Mongo) GetHistoryWithFilter(sid string, cid string, filter ChatFilter, locale ...string) ([]map[string]interface{}, error) {
 	return []map[string]interface{}{}, nil
 }
 
diff --git a/neo/store/redis.go b/neo/store/redis.go
index 94f4b3eb..7054a3b3 100644
--- a/neo/store/redis.go
+++ b/neo/store/redis.go
@@ -9,27 +9,27 @@ func NewRedis() Store {
 }
 
 // GetChats retrieves a list of chats
-func (r *Redis) GetChats(sid string, filter ChatFilter) (*ChatGroupResponse, error) {
+func (r *Redis) GetChats(sid string, filter ChatFilter, locale ...string) (*ChatGroupResponse, error) {
 	return &ChatGroupResponse{}, nil
 }
 
 // GetChat retrieves a single chat's information
-func (r *Redis) GetChat(sid string, cid string) (*ChatInfo, error) {
+func (r *Redis) GetChat(sid string, cid string, locale ...string) (*ChatInfo, error) {
 	return &ChatInfo{}, nil
 }
 
 // GetChatWithFilter retrieves a single chat's information with filter options
-func (r *Redis) GetChatWithFilter(sid string, cid string, filter ChatFilter) (*ChatInfo, error) {
+func (r *Redis) GetChatWithFilter(sid string, cid string, filter ChatFilter, locale ...string) (*ChatInfo, error) {
 	return &ChatInfo{}, nil
 }
 
 // GetHistory retrieves chat history
-func (r *Redis) GetHistory(sid string, cid string) ([]map[string]interface{}, error) {
+func (r *Redis) GetHistory(sid string, cid string, locale ...string) ([]map[string]interface{}, error) {
 	return []map[string]interface{}{}, nil
 }
 
 // GetHistoryWithFilter retrieves chat history with filter options
-func (r *Redis) GetHistoryWithFilter(sid string, cid string, filter ChatFilter) ([]map[string]interface{}, error) {
+func (r *Redis) GetHistoryWithFilter(sid string, cid string, filter ChatFilter, locale ...string) ([]map[string]interface{}, error) {
 	return []map[string]interface{}{}, nil
 }
 
diff --git a/neo/store/types.go b/neo/store/types.go
index abfc6477..45538897 100644
--- a/neo/store/types.go
+++ b/neo/store/types.go
@@ -86,33 +86,33 @@ type Store interface {
 	// sid: Session ID
 	// filter: Filter conditions
 	// Returns: Grouped chat list and potential error
-	GetChats(sid string, filter ChatFilter) (*ChatGroupResponse, error)
+	GetChats(sid string, filter ChatFilter, locale ...string) (*ChatGroupResponse, error)
 
 	// GetChat retrieves a single chat's information
 	// sid: Session ID
 	// cid: Chat ID
 	// Returns: Chat information and potential error
-	GetChat(sid string, cid string) (*ChatInfo, error)
+	GetChat(sid string, cid string, locale ...string) (*ChatInfo, error)
 
 	// GetChatWithFilter retrieves a single chat's information with filter options
 	// sid: Session ID
 	// cid: Chat ID
 	// filter: Filter conditions
 	// Returns: Chat information and potential error
-	GetChatWithFilter(sid string, cid string, filter ChatFilter) (*ChatInfo, error)
+	GetChatWithFilter(sid string, cid string, filter ChatFilter, locale ...string) (*ChatInfo, error)
 
 	// GetHistory retrieves chat history
 	// sid: Session ID
 	// cid: Chat ID
 	// Returns: History record list and potential error
-	GetHistory(sid string, cid string) ([]map[string]interface{}, error)
+	GetHistory(sid string, cid string, locale ...string) ([]map[string]interface{}, error)
 
 	// GetHistoryWithFilter retrieves chat history with filter options
 	// sid: Session ID
 	// cid: Chat ID
 	// filter: Filter conditions
 	// Returns: History record list and potential error
-	GetHistoryWithFilter(sid string, cid string, filter ChatFilter) ([]map[string]interface{}, error)
+	GetHistoryWithFilter(sid string, cid string, filter ChatFilter, locale ...string) ([]map[string]interface{}, error)
 
 	// SaveHistory saves chat history
 	// sid: Session ID
diff --git a/neo/store/xun.go b/neo/store/xun.go
index c82c19bc..30766e72 100644
--- a/neo/store/xun.go
+++ b/neo/store/xun.go
@@ -322,18 +322,18 @@ func (conv *Xun) UpdateChatTitle(sid string, cid string, title string) error {
 }
 
 // GetChats get the chat list with grouping by date
-func (conv *Xun) GetChats(sid string, filter ChatFilter) (*ChatGroupResponse, error) {
+func (conv *Xun) GetChats(sid string, filter ChatFilter, locale ...string) (*ChatGroupResponse, error) {
 	// Default behavior: exclude silent chats
 	if filter.Silent == nil {
 		silentFalse := false
 		filter.Silent = &silentFalse
 	}
 
-	return conv.getChatsWithFilter(sid, filter)
+	return conv.getChatsWithFilter(sid, filter, locale...)
 }
 
 // getChatsWithFilter get the chats with filter options
-func (conv *Xun) getChatsWithFilter(sid string, filter ChatFilter) (*ChatGroupResponse, error) {
+func (conv *Xun) getChatsWithFilter(sid string, filter ChatFilter, locale ...string) (*ChatGroupResponse, error) {
 	userID, err := conv.getUserID(sid)
 	if err != nil {
 		return nil, err
@@ -448,8 +448,13 @@ func (conv *Xun) getChatsWithFilter(sid string, filter ChatFilter) (*ChatGroupRe
 
 		for _, assistant := range assistants {
 			if id := assistant.Get("assistant_id"); id != nil {
+				name := assistant.Get("name")
+				if len(locale) > 0 {
+					lang := strings.ToLower(locale[0])
+					name = i18n.Translate(id.(string), lang, name).(string)
+				}
 				assistantMap[fmt.Sprintf("%v", id)] = map[string]interface{}{
-					"name":   assistant.Get("name"),
+					"name":   name,
 					"avatar": assistant.Get("avatar"),
 				}
 			}
@@ -472,7 +477,12 @@ func (conv *Xun) getChatsWithFilter(sid string, filter ChatFilter) (*ChatGroupRe
 		// Add assistant details if available
 		if assistantID := row.Get("assistant_id"); assistantID != nil && assistantID != "" {
 			if assistant, ok := assistantMap[fmt.Sprintf("%v", assistantID)]; ok {
-				chat["assistant_name"] = assistant["name"]
+				name := assistant["name"]
+				if len(locale) > 0 {
+					lang := strings.ToLower(locale[0])
+					name = i18n.Translate(assistantID.(string), lang, name).(string)
+				}
+				chat["assistant_name"] = name
 				chat["assistant_avatar"] = assistant["avatar"]
 			}
 		}
@@ -516,12 +526,17 @@ func (conv *Xun) getChatsWithFilter(sid string, filter ChatFilter) (*ChatGroupRe
 		}
 	}
 
-	// Convert to ordered slice
+	// Convert to ordered slice and apply i18n
 	result := []ChatGroup{}
 	for _, label := range []string{"Today", "Yesterday", "This Week", "Last Week", "Even Earlier"} {
 		if len(groups[label]) > 0 {
+			translatedLabel := label
+			if len(locale) > 0 {
+				lang := strings.ToLower(locale[0])
+				translatedLabel = i18n.TranslateGlobal(lang, label).(string)
+			}
 			result = append(result, ChatGroup{
-				Label: label,
+				Label: translatedLabel,
 				Chats: groups[label],
 			})
 		}
@@ -537,7 +552,7 @@ func (conv *Xun) getChatsWithFilter(sid string, filter ChatFilter) (*ChatGroupRe
 }
 
 // GetHistory get the history
-func (conv *Xun) GetHistory(sid string, cid string) ([]map[string]interface{}, error) {
+func (conv *Xun) GetHistory(sid string, cid string, locale ...string) ([]map[string]interface{}, error) {
 	userID, err := conv.getUserID(sid)
 	if err != nil {
 		return nil, err
@@ -568,13 +583,20 @@ func (conv *Xun) GetHistory(sid string, cid string) ([]map[string]interface{}, e
 
 	res := []map[string]interface{}{}
 	for _, row := range rows {
+		assistantName := row.Get("assistant_name")
+		assistantID := row.Get("assistant_id")
+		if len(locale) > 0 && assistantID != nil {
+			lang := strings.ToLower(locale[0])
+			assistantName = i18n.Translate(assistantID.(string), lang, assistantName).(string)
+		}
+
 		message := map[string]interface{}{
 			"role":             row.Get("role"),
 			"name":             row.Get("name"),
 			"content":          row.Get("content"),
 			"context":          row.Get("context"),
 			"assistant_id":     row.Get("assistant_id"),
-			"assistant_name":   row.Get("assistant_name"),
+			"assistant_name":   assistantName,
 			"assistant_avatar": row.Get("assistant_avatar"),
 			"mentions":         row.Get("mentions"),
 			"uid":              row.Get("uid"),
@@ -770,7 +792,7 @@ func (conv *Xun) SaveHistory(sid string, messages []map[string]interface{}, cid
 }
 
 // GetChat get the chat info and its history
-func (conv *Xun) GetChat(sid string, cid string) (*ChatInfo, error) {
+func (conv *Xun) GetChat(sid string, cid string, locale ...string) (*ChatInfo, error) {
 	userID, err := conv.getUserID(sid)
 	if err != nil {
 		return nil, err
@@ -809,14 +831,20 @@ func (conv *Xun) GetChat(sid string, cid string) (*ChatInfo, error) {
 			return nil, err
 		}
 
+		name := assistant.Get("name")
+		if len(locale) > 0 {
+			lang := strings.ToLower(locale[0])
+			name = i18n.Translate(assistantID.(string), lang, name).(string)
+		}
+
 		if assistant != nil {
-			chat["assistant_name"] = assistant.Get("name")
+			chat["assistant_name"] = name
 			chat["assistant_avatar"] = assistant.Get("avatar")
 		}
 	}
 
 	// Get chat history with default filter (silent=false)
-	history, err := conv.GetHistory(sid, cid)
+	history, err := conv.GetHistory(sid, cid, locale...)
 	if err != nil {
 		return nil, err
 	}
@@ -828,7 +856,7 @@ func (conv *Xun) GetChat(sid string, cid string) (*ChatInfo, error) {
 }
 
 // GetChatWithFilter get the chat info and its history with filter options
-func (conv *Xun) GetChatWithFilter(sid string, cid string, filter ChatFilter) (*ChatInfo, error) {
+func (conv *Xun) GetChatWithFilter(sid string, cid string, filter ChatFilter, locale ...string) (*ChatInfo, error) {
 	userID, err := conv.getUserID(sid)
 	if err != nil {
 		return nil, err
@@ -874,7 +902,7 @@ func (conv *Xun) GetChatWithFilter(sid string, cid string, filter ChatFilter) (*
 	}
 
 	// Get chat history with filter
-	history, err := conv.GetHistoryWithFilter(sid, cid, filter)
+	history, err := conv.GetHistoryWithFilter(sid, cid, filter, locale...)
 	if err != nil {
 		return nil, err
 	}
@@ -1332,7 +1360,7 @@ func (conv *Xun) GetAssistantTags(locale ...string) ([]Tag, error) {
 }
 
 // GetHistoryWithFilter get the history with filter options
-func (conv *Xun) GetHistoryWithFilter(sid string, cid string, filter ChatFilter) ([]map[string]interface{}, error) {
+func (conv *Xun) GetHistoryWithFilter(sid string, cid string, filter ChatFilter, locale ...string) ([]map[string]interface{}, error) {
 	userID, err := conv.getUserID(sid)
 	if err != nil {
 		return nil, err