Add temperature override option in config

- Add temperature field to Config struct (optional override)\n- Pass tempOverride to ConvertOpenAIRequest\n- Use override temperature if set, otherwise use client's temperature\n- Document option in config.yaml with example\n- Update README with temperature override documentation

README.md

@@ -28,6 +28,7 @@ upstream_url: "https://api.z.ai/api/anthropic"
 
 - `port`: Port to listen on (default: 8080)
 - `upstream_url`: Base URL for the Anthropic-compatible upstream API
+- `temperature` (optional): Override temperature for all requests. If set, this value is used instead of client-specified temperatures. Remove this line to respect client temperatures.
 
 ## Building
 

config.yaml

@@ -1,6 +1,11 @@
 port: 8080
 upstream_url: "https://api.z.ai/api/anthropic"
 
+# Temperature override for all requests (optional)
+# If set, this temperature will be used instead of what clients request
+# Remove this line or set to null to use client-specified temperatures
+# temperature: 0.7
+
 models:
   - id: "glm-4.7"
     owned_by: "zhipu"

converter.go

@@ -7,7 +7,8 @@ import (
 )
 
 // ConvertOpenAIRequest converts an OpenAI ChatCompletionRequest to Anthropic format
-func ConvertOpenAIRequest(req *ChatCompletionRequest) *AnthropicRequest {
+// tempOverride, if provided, overrides any temperature from the request
+func ConvertOpenAIRequest(req *ChatCompletionRequest, tempOverride *float64) *AnthropicRequest {
 	system, remainingMessages := extractSystemMessage(req.Messages)
 
 	anthropicReq := &AnthropicRequest{
@@ -27,7 +28,10 @@ func ConvertOpenAIRequest(req *ChatCompletionRequest) *AnthropicRequest {
 	if req.Stream != nil {
 		anthropicReq.Stream = *req.Stream
 	}
-	if req.Temperature != nil {
+	// Use temperature override if configured, otherwise use request temperature
+	if tempOverride != nil {
+		anthropicReq.Temperature = tempOverride
+	} else if req.Temperature != nil {
 		anthropicReq.Temperature = req.Temperature
 	}
 	if req.TopP != nil {

handler.go

@@ -21,6 +21,7 @@ type Config struct {
 	Port        int          `yaml:"port"`
 	UpstreamURL string       `yaml:"upstream_url"`
 	Models      []ModelConfig `yaml:"models"`
+	Temperature *float64     `yaml:"temperature,omitempty"`
 }
 
 var config *Config
@@ -124,7 +125,7 @@ func handleChatCompletions(w http.ResponseWriter, r *http.Request) {
 
 	// Convert to Anthropic format — always non-streaming to upstream
 	// (ZAI's streaming returns empty for GLM models)
-	anthropicReq := ConvertOpenAIRequest(&req)
+	anthropicReq := ConvertOpenAIRequest(&req, config.Temperature)
 	anthropicReq.Stream = false
 
 	reqBody, _ := json.Marshal(anthropicReq)