diff --git a/assistant.go b/assistant.go
index 081e5bc..7ce9ea8 100644
--- a/assistant.go
+++ b/assistant.go
@@ -234,7 +234,7 @@ func handleAssistantConversation(c tele.Context, thread []*tele.Message) error {
 	}
 
 	req := openai.ChatRequest{
-		Model:       openai.ModelGpt4O,
+		Model:       openai.ModelGpt45,
 		Messages:    chatReqMsgs,
 		Temperature: lo.ToPtr(0.42),
 		User:        assistantHashUserId(lastMsg.Sender.ID),
diff --git a/openai/models.go b/openai/models.go
index 0307fcc..8657a11 100644
--- a/openai/models.go
+++ b/openai/models.go
@@ -1,8 +1,9 @@
 package openai
 
 const (
-	ModelGpt4O     = "gpt-4o"     // Safe default
-	ModelO1Preview = "o1-preview" // Expensive reasoning model
-	ModelO1Mini    = "o1-mini"    // Cheaper reasoning model
-	ModelO3Mini    = "o3-mini"    // Cheaper yet powerful reasoning model
+	ModelGpt4O     = "gpt-4o"          // Safe default
+	ModelO1Preview = "o1-preview"      // Expensive reasoning model
+	ModelO1Mini    = "o1-mini"         // Cheaper reasoning model
+	ModelO3Mini    = "o3-mini"         // Cheaper yet powerful reasoning model
+	ModelGpt45     = "gpt-4.5-preview" // Bleeding edge (and expensive)
 )