add provider sorting

chat.go

@@ -54,6 +54,7 @@ type Metadata struct {
 type Request struct {
 	Prompt      string    `json:"prompt"`
 	Model       string    `json:"model"`
+	Provider    string    `json:"provider"`
 	Temperature float64   `json:"temperature"`
 	Iterations  int64     `json:"iterations"`
 	Tools       Tools     `json:"tools"`
@@ -168,6 +169,21 @@ func (r *Request) Parse() (*openrouter.ChatCompletionRequest, error) {
 		}
 	}
 
+	switch r.Provider {
+	case "throughput":
+		request.Provider = &openrouter.ChatProvider{
+			Sort: openrouter.ProviderSortingThroughput,
+		}
+	case "latency":
+		request.Provider = &openrouter.ChatProvider{
+			Sort: openrouter.ProviderSortingLatency,
+		}
+	case "price":
+		request.Provider = &openrouter.ChatProvider{
+			Sort: openrouter.ProviderSortingPrice,
+		}
+	}
+
 	if model.JSON && r.Tools.JSON {
 		request.ResponseFormat = &openrouter.ChatCompletionResponseFormat{
 			Type: openrouter.ChatCompletionResponseFormatTypeJSONObject,