From 867d8acfc3cb001cc560869bd52b9c1c21cff99a Mon Sep 17 00:00:00 2001
From: Benson Yan <bensonfx@outlook.com>
Date: Wed, 10 Jun 2026 17:19:57 +0800
Subject: [PATCH] fix: normalize kimi k2.6 temperature (#5390)

---
 relay/channel/moonshot/adaptor.go      | 16 ++++++
 relay/channel/moonshot/adaptor_test.go | 68 ++++++++++++++++++++++++++
 2 files changed, 84 insertions(+)
 create mode 100644 relay/channel/moonshot/adaptor_test.go

diff --git a/relay/channel/moonshot/adaptor.go b/relay/channel/moonshot/adaptor.go
index c2f6ee4a..c90ae073 100644
--- a/relay/channel/moonshot/adaptor.go
+++ b/relay/channel/moonshot/adaptor.go
@@ -5,7 +5,9 @@ import (
 	"fmt"
 	"io"
 	"net/http"
+	"strings"
 
+	"github.com/QuantumNous/new-api/common"
 	channelconstant "github.com/QuantumNous/new-api/constant"
 	"github.com/QuantumNous/new-api/dto"
 	"github.com/QuantumNous/new-api/relay/channel"
@@ -79,9 +81,23 @@ func (a *Adaptor) SetupRequestHeader(c *gin.Context, req *http.Header, info *rel
 }
 
 func (a *Adaptor) ConvertOpenAIRequest(c *gin.Context, info *relaycommon.RelayInfo, request *dto.GeneralOpenAIRequest) (any, error) {
+	if request.Temperature != nil && isTemperatureOneOnlyModel(getUpstreamModelName(info, request.Model)) && *request.Temperature != 1.0 {
+		request.Temperature = common.GetPointer[float64](1.0)
+	}
 	return request, nil
 }
 
+func getUpstreamModelName(info *relaycommon.RelayInfo, fallback string) string {
+	if info != nil && info.ChannelMeta != nil && info.UpstreamModelName != "" {
+		return info.UpstreamModelName
+	}
+	return fallback
+}
+
+func isTemperatureOneOnlyModel(model string) bool {
+	return strings.EqualFold(model, "kimi-k2.6")
+}
+
 func (a *Adaptor) ConvertOpenAIResponsesRequest(c *gin.Context, info *relaycommon.RelayInfo, request dto.OpenAIResponsesRequest) (any, error) {
 	// TODO implement me
 	return nil, errors.New("not implemented")
diff --git a/relay/channel/moonshot/adaptor_test.go b/relay/channel/moonshot/adaptor_test.go
new file mode 100644
index 00000000..cfa1cb49
--- /dev/null
+++ b/relay/channel/moonshot/adaptor_test.go
@@ -0,0 +1,68 @@
+package moonshot
+
+import (
+	"testing"
+
+	"github.com/QuantumNous/new-api/common"
+	"github.com/QuantumNous/new-api/dto"
+	relaycommon "github.com/QuantumNous/new-api/relay/common"
+	"github.com/stretchr/testify/require"
+)
+
+func TestConvertOpenAIRequestKimiK26UsesOnlyAllowedTemperature(t *testing.T) {
+	request := &dto.GeneralOpenAIRequest{
+		Model:       "kimi-k2.6",
+		Temperature: common.GetPointer[float64](0.7),
+	}
+	info := &relaycommon.RelayInfo{
+		ChannelMeta: &relaycommon.ChannelMeta{
+			UpstreamModelName: "kimi-k2.6",
+		},
+	}
+
+	converted, err := (&Adaptor{}).ConvertOpenAIRequest(nil, info, request)
+
+	require.NoError(t, err)
+	convertedRequest, ok := converted.(*dto.GeneralOpenAIRequest)
+	require.True(t, ok)
+	require.NotNil(t, convertedRequest.Temperature)
+	require.Equal(t, 1.0, *convertedRequest.Temperature)
+}
+
+func TestConvertOpenAIRequestKimiK26KeepsOmittedTemperatureOmitted(t *testing.T) {
+	request := &dto.GeneralOpenAIRequest{
+		Model: "kimi-k2.6",
+	}
+	info := &relaycommon.RelayInfo{
+		ChannelMeta: &relaycommon.ChannelMeta{
+			UpstreamModelName: "kimi-k2.6",
+		},
+	}
+
+	converted, err := (&Adaptor{}).ConvertOpenAIRequest(nil, info, request)
+
+	require.NoError(t, err)
+	convertedRequest, ok := converted.(*dto.GeneralOpenAIRequest)
+	require.True(t, ok)
+	require.Nil(t, convertedRequest.Temperature)
+}
+
+func TestConvertOpenAIRequestOtherMoonshotModelKeepsTemperature(t *testing.T) {
+	request := &dto.GeneralOpenAIRequest{
+		Model:       "kimi-k2.5",
+		Temperature: common.GetPointer[float64](0.7),
+	}
+	info := &relaycommon.RelayInfo{
+		ChannelMeta: &relaycommon.ChannelMeta{
+			UpstreamModelName: "kimi-k2.5",
+		},
+	}
+
+	converted, err := (&Adaptor{}).ConvertOpenAIRequest(nil, info, request)
+
+	require.NoError(t, err)
+	convertedRequest, ok := converted.(*dto.GeneralOpenAIRequest)
+	require.True(t, ok)
+	require.NotNil(t, convertedRequest.Temperature)
+	require.Equal(t, 0.7, *convertedRequest.Temperature)
+}