diff --git a/relay/adaptor/openai/constants.go b/relay/adaptor/openai/constants.go
index 9885ce68..aacdba1a 100644
--- a/relay/adaptor/openai/constants.go
+++ b/relay/adaptor/openai/constants.go
@@ -9,6 +9,7 @@ var ModelList = []string{
 	"gpt-4-turbo-preview", "gpt-4-turbo", "gpt-4-turbo-2024-04-09",
 	"gpt-4o", "gpt-4o-2024-05-13",
 	"gpt-4o-2024-08-06",
+	"chatgpt-4o-latest",
 	"gpt-4o-mini", "gpt-4o-mini-2024-07-18",
 	"gpt-4-vision-preview",
 	"text-embedding-ada-002", "text-embedding-3-small", "text-embedding-3-large",
diff --git a/relay/billing/ratio/model.go b/relay/billing/ratio/model.go
index 1ee37e8b..029ab60b 100644
--- a/relay/billing/ratio/model.go
+++ b/relay/billing/ratio/model.go
@@ -34,6 +34,7 @@ var ModelRatio = map[string]float64{
 	"gpt-4-turbo":             5,     // $0.01 / 1K tokens
 	"gpt-4-turbo-2024-04-09":  5,     // $0.01 / 1K tokens
 	"gpt-4o":                  2.5,   // $0.005 / 1K tokens
+	"chatgpt-4o-latest":       2.5,   // $0.005 / 1K tokens
 	"gpt-4o-2024-05-13":       2.5,   // $0.005 / 1K tokens
 	"gpt-4o-2024-08-06":       1.25,  // $0.0025 / 1K tokens
 	"gpt-4o-mini":             0.075, // $0.00015 / 1K tokens
@@ -324,6 +325,9 @@ func GetCompletionRatio(name string, channelType int) float64 {
 		}
 		return 2
 	}
+	if name == "chatgpt-4o-latest" {
+		return 3
+	}
 	if strings.HasPrefix(name, "claude-3") {
 		return 5
 	}