diff --git a/cmd/apps/chat.go b/cmd/apps/chat.go
index 76ffea2..0329b1e 100644
--- a/cmd/apps/chat.go
+++ b/cmd/apps/chat.go
@@ -67,7 +67,6 @@ func chat(dirId int64, history []map[string]string) error {
 	}
 	go func() {
 		f = f.Chat(res)
-		close(resp)
 	}()
 	if f.Error != nil {
 		return f.Error
diff --git a/pkg/friday/question.go b/pkg/friday/question.go
index 77799da..7f57a29 100644
--- a/pkg/friday/question.go
+++ b/pkg/friday/question.go
@@ -105,7 +105,6 @@ func (f *Friday) chat(res *ChatState) *Friday {
 			err    error
 		)
 		go func() {
-			defer close(sumBuf)
 			_, err = f.LLM.Chat(f.statement.context, false, sumDialogue, sumBuf)
 			if err != nil {
 				f.Error = err
@@ -114,6 +113,7 @@ func (f *Friday) chat(res *ChatState) *Friday {
 		}()
 		select {
 		case <-f.statement.context.Done():
+			f.Error = errors.New("context canceled")
 			return f
 		case sum = <-sumBuf:
 			// add context prompt for dialogue
diff --git a/pkg/llm/client/gemini/chat.go b/pkg/llm/client/gemini/chat.go
index 2afb166..1e20d1b 100644
--- a/pkg/llm/client/gemini/chat.go
+++ b/pkg/llm/client/gemini/chat.go
@@ -36,6 +36,7 @@ func (g *Gemini) GetAssistantModel() string {
 }
 
 func (g *Gemini) Chat(ctx context.Context, stream bool, history []map[string]string, answers chan<- map[string]string) (tokens map[string]int, err error) {
+	defer close(answers)
 	var path string
 	path = fmt.Sprintf("v1beta/models/%s:generateContent", *g.conf.Model)
 	if stream {
@@ -65,11 +66,15 @@ func (g *Gemini) Chat(ctx context.Context, stream bool, history []map[string]str
 		ans := make(map[string]string)
 		l := strings.TrimSpace(string(line))
 		if stream {
-			if !strings.HasPrefix(l, "\"text\"") {
-				continue
+			if l == "EOF" {
+				ans["content"] = "EOF"
+			} else {
+				if !strings.HasPrefix(l, "\"text\"") {
+					continue
+				}
+				// it should be: "text": "xxx"
+				ans["content"] = l[9 : len(l)-2]
 			}
-			// it should be: "text": "xxx"
-			ans["content"] = l[9 : len(l)-2]
 		} else {
 			var res ChatResult
 			err = json.Unmarshal(line, &res)
diff --git a/pkg/llm/client/openai/v1/chat.go b/pkg/llm/client/openai/v1/chat.go
index 47fc8f0..b1051e3 100644
--- a/pkg/llm/client/openai/v1/chat.go
+++ b/pkg/llm/client/openai/v1/chat.go
@@ -65,6 +65,7 @@ func (o *OpenAIV1) GetAssistantModel() string {
 }
 
 func (o *OpenAIV1) Chat(ctx context.Context, stream bool, history []map[string]string, resp chan<- map[string]string) (tokens map[string]int, err error) {
+	defer close(resp)
 	path := "v1/chat/completions"
 
 	data := map[string]interface{}{
@@ -92,17 +93,21 @@ func (o *OpenAIV1) Chat(ctx context.Context, stream bool, history []map[string]s
 		var delta map[string]string
 		if stream {
 			var res ChatStreamResult
-			if !strings.HasPrefix(string(line), "data:") || strings.Contains(string(line), "data: [DONE]") {
-				continue
+			if string(line) == "EOF" {
+				delta = map[string]string{"content": "EOF"}
+			} else {
+				if !strings.HasPrefix(string(line), "data:") || strings.Contains(string(line), "data: [DONE]") {
+					continue
+				}
+				// it should be: data: xxx
+				l := string(line)[6:]
+				err = json.Unmarshal([]byte(l), &res)
+				if err != nil {
+					err = fmt.Errorf("cannot marshal msg: %s, err: %v", line, err)
+					return
+				}
+				delta = res.Choices[0].Delta
 			}
-			// it should be: data: xxx
-			l := string(line)[6:]
-			err = json.Unmarshal([]byte(l), &res)
-			if err != nil {
-				err = fmt.Errorf("cannot marshal msg: %s, err: %v", line, err)
-				return
-			}
-			delta = res.Choices[0].Delta
 		} else {
 			var res ChatResult
 			err = json.Unmarshal(line, &res)