✨ add: Support GPT4o ratio

common/model-ratio.go

@@ -28,6 +28,7 @@ var DefaultModelRatio = map[string]float64{
 	"gpt-4-vision-preview":      5,    // $0.01 / 1K tokens
 	"gpt-4-1106-vision-preview": 5,    // $0.01 / 1K tokens
 	"gpt-4-turbo":               5,    // $0.01 / 1K tokens
+	"gpt-4o":                    0.25, // $0.0015 / 1K tokens
 	"gpt-4-turbo-2024-04-09":    5,    // $0.01 / 1K tokens
 	"gpt-3.5-turbo":             0.25, // $0.0015 / 1K tokens
 	//"gpt-3.5-turbo-0301":           0.75, //deprecated