diff --git a/backend/internal/ai/tts/openai.go b/backend/internal/ai/tts/openai.go
index ba7f788..a066e68 100644
--- a/backend/internal/ai/tts/openai.go
+++ b/backend/internal/ai/tts/openai.go
@@ -9,6 +9,7 @@ import (
 	"net/http"
 	"time"
 
+	"github.com/hhs/camtalk/internal/util"
 	"go.uber.org/zap"
 )
 
@@ -81,7 +82,10 @@ func (o *OpenAIService) SynthesizeStream(ctx context.Context, textStream <-chan
 
 			audio, err := o.synthesize(ctx, text, voice, speed)
 			if err != nil {
-				o.logger.Warnw("tts: synthesize failed", "error", err, "text", text)
+				o.logger.Warnw("tts: synthesize failed",
+					"error", err,
+					"text_len", len(text),
+					"text_preview", util.Truncate(text, 100))
 				// 静默跳过，不中断整个流
 				continue
 			}