diff --git a/dto/openai_request.go b/dto/openai_request.go
index 299171ba..42c290ca 100644
--- a/dto/openai_request.go
+++ b/dto/openai_request.go
@@ -53,6 +53,7 @@ type GeneralOpenAIRequest struct {
 	Modalities          json.RawMessage   `json:"modalities,omitempty"`
 	Audio               json.RawMessage   `json:"audio,omitempty"`
 	EnableThinking      any               `json:"enable_thinking,omitempty"` // ali
+	THINKING            json.RawMessage   `json:"thinking,omitempty"`        // doubao
 	ExtraBody           json.RawMessage   `json:"extra_body,omitempty"`
 	WebSearchOptions    *WebSearchOptions `json:"web_search_options,omitempty"`
 	// OpenRouter Params