openai: don't scale temperature or frequency_penalty (#6514)

openai/openai.go

@@ -513,7 +513,7 @@ func fromCompleteRequest(r CompletionRequest) (api.GenerateRequest, error) {
 	}
 
 	if r.Temperature != nil {
-		options["temperature"] = *r.Temperature * 2.0
+		options["temperature"] = *r.Temperature
 	} else {
 		options["temperature"] = 1.0
 	}
@@ -522,9 +522,9 @@ func fromCompleteRequest(r CompletionRequest) (api.GenerateRequest, error) {
 		options["seed"] = *r.Seed
 	}
 
-	options["frequency_penalty"] = r.FrequencyPenalty * 2.0
+	options["frequency_penalty"] = r.FrequencyPenalty
 
-	options["presence_penalty"] = r.PresencePenalty * 2.0
+	options["presence_penalty"] = r.PresencePenalty
 
 	if r.TopP != 0.0 {
 		options["top_p"] = r.TopP

openai/openai_test.go

@@ -275,7 +275,7 @@ func TestCompletionsMiddleware(t *testing.T) {
 				Options: map[string]any{
 					"frequency_penalty": 0.0,
 					"presence_penalty":  0.0,
-					"temperature":       1.6,
+					"temperature":       0.8,
 					"top_p":             1.0,
 					"stop":              []any{"\n", "stop"},
 				},