diff --git a/types/chat.go b/types/chat.go
index 8c414ffd..68cdca49 100644
--- a/types/chat.go
+++ b/types/chat.go
@@ -245,7 +245,7 @@ func (c *ChatCompletionChoice) CheckChoice(request *ChatCompletionRequest) {
 type ChatCompletionResponse struct {
 	ID                  string                 `json:"id"`
 	Object              string                 `json:"object"`
-	Created             int64                  `json:"created"`
+	Created             any                    `json:"created"`
 	Model               string                 `json:"model"`
 	Choices             []ChatCompletionChoice `json:"choices"`
 	Usage               *Usage                 `json:"usage,omitempty"`
@@ -368,7 +368,7 @@ func (c *ChatCompletionStreamChoice) CheckChoice(request *ChatCompletionRequest)
 type ChatCompletionStreamResponse struct {
 	ID                string                       `json:"id"`
 	Object            string                       `json:"object"`
-	Created           int64                        `json:"created"`
+	Created           any                          `json:"created"`
 	Model             string                       `json:"model"`
 	Choices           []ChatCompletionStreamChoice `json:"choices"`
 	PromptAnnotations any                          `json:"prompt_annotations,omitempty"`
diff --git a/types/completion.go b/types/completion.go
index 3a8fad47..698bd15d 100644
--- a/types/completion.go
+++ b/types/completion.go
@@ -29,7 +29,7 @@ type CompletionChoice struct {
 type CompletionResponse struct {
 	ID      string             `json:"id"`
 	Object  string             `json:"object"`
-	Created int64              `json:"created"`
+	Created any                `json:"created"`
 	Model   string             `json:"model"`
 	Choices []CompletionChoice `json:"choices"`
 	Usage   *Usage             `json:"usage,omitempty"`
diff --git a/types/image.go b/types/image.go
index 53559532..bf8531c2 100644
--- a/types/image.go
+++ b/types/image.go
@@ -14,7 +14,7 @@ type ImageRequest struct {
 }
 
 type ImageResponse struct {
-	Created int64                    `json:"created,omitempty"`
+	Created any                      `json:"created,omitempty"`
 	Data    []ImageResponseDataInner `json:"data,omitempty"`
 }