feat: convert gemini format to openai chat completions

relay/channel/gemini/dto.go → dto/gemini.go

-package gemini
+package dto
 
 import (
 	"encoding/json"
@@ -56,7 +56,7 @@ type FunctionCall struct {
 	Arguments    any    `json:"args"`
 }
 
-type FunctionResponse struct {
+type GeminiFunctionResponse struct {
 	Name     string                 `json:"name"`
 	Response map[string]interface{} `json:"response"`
 }
@@ -81,7 +81,7 @@ type GeminiPart struct {
 	Thought             bool                           `json:"thought,omitempty"`
 	InlineData          *GeminiInlineData              `json:"inlineData,omitempty"`
 	FunctionCall        *FunctionCall                  `json:"functionCall,omitempty"`
-	FunctionResponse    *FunctionResponse              `json:"functionResponse,omitempty"`
+	FunctionResponse    *GeminiFunctionResponse        `json:"functionResponse,omitempty"`
 	FileData            *GeminiFileData                `json:"fileData,omitempty"`
 	ExecutableCode      *GeminiPartExecutableCode      `json:"executableCode,omitempty"`
 	CodeExecutionResult *GeminiPartCodeExecutionResult `json:"codeExecutionResult,omitempty"`

relay/channel/adapter.go

@@ -26,6 +26,7 @@ type Adaptor interface {
 	GetModelList() []string
 	GetChannelName() string
 	ConvertClaudeRequest(c *gin.Context, info *relaycommon.RelayInfo, request *dto.ClaudeRequest) (any, error)
+	ConvertGeminiRequest(c *gin.Context, info *relaycommon.RelayInfo, request *dto.GeminiChatRequest) (any, error)
 }
 
 type TaskAdaptor interface {

relay/channel/ali/adaptor.go

@@ -18,6 +18,11 @@ import (
 type Adaptor struct {
 }
 
+func (a *Adaptor) ConvertGeminiRequest(*gin.Context, *relaycommon.RelayInfo, *dto.GeminiChatRequest) (any, error) {
+	//TODO implement me
+	return nil, errors.New("not implemented")
+}
+
 func (a *Adaptor) ConvertClaudeRequest(*gin.Context, *relaycommon.RelayInfo, *dto.ClaudeRequest) (any, error) {
 	//TODO implement me
 	panic("implement me")

relay/channel/aws/adaptor.go

@@ -22,6 +22,11 @@ type Adaptor struct {
 	RequestMode int
 }
 
+func (a *Adaptor) ConvertGeminiRequest(*gin.Context, *relaycommon.RelayInfo, *dto.GeminiChatRequest) (any, error) {
+	//TODO implement me
+	return nil, errors.New("not implemented")
+}
+
 func (a *Adaptor) ConvertClaudeRequest(c *gin.Context, info *relaycommon.RelayInfo, request *dto.ClaudeRequest) (any, error) {
 	c.Set("request_model", request.Model)
 	c.Set("converted_request", request)

relay/channel/baidu/adaptor.go

@@ -18,6 +18,11 @@ import (
 type Adaptor struct {
 }
 
+func (a *Adaptor) ConvertGeminiRequest(*gin.Context, *relaycommon.RelayInfo, *dto.GeminiChatRequest) (any, error) {
+	//TODO implement me
+	return nil, errors.New("not implemented")
+}
+
 func (a *Adaptor) ConvertClaudeRequest(*gin.Context, *relaycommon.RelayInfo, *dto.ClaudeRequest) (any, error) {
 	//TODO implement me
 	panic("implement me")

relay/channel/baidu_v2/adaptor.go

@@ -18,6 +18,11 @@ import (
 type Adaptor struct {
 }
 
+func (a *Adaptor) ConvertGeminiRequest(*gin.Context, *relaycommon.RelayInfo, *dto.GeminiChatRequest) (any, error) {
+	//TODO implement me
+	return nil, errors.New("not implemented")
+}
+
 func (a *Adaptor) ConvertClaudeRequest(*gin.Context, *relaycommon.RelayInfo, *dto.ClaudeRequest) (any, error) {
 	//TODO implement me
 	panic("implement me")
@@ -43,15 +48,15 @@ func (a *Adaptor) GetRequestURL(info *relaycommon.RelayInfo) (string, error) {
 
 func (a *Adaptor) SetupRequestHeader(c *gin.Context, req *http.Header, info *relaycommon.RelayInfo) error {
 	channel.SetupApiRequestHeader(info, c, req)
-        keyParts := strings.Split(info.ApiKey, "|")
+	keyParts := strings.Split(info.ApiKey, "|")
 	if len(keyParts) == 0 || keyParts[0] == "" {
-        	return errors.New("invalid API key: authorization token is required")
-        }
-	 if len(keyParts) > 1 {
-               if keyParts[1] != "" {
-                       req.Set("appid", keyParts[1])
-               }
-        }
+		return errors.New("invalid API key: authorization token is required")
+	}
+	if len(keyParts) > 1 {
+		if keyParts[1] != "" {
+			req.Set("appid", keyParts[1])
+		}
+	}
 	req.Set("Authorization", "Bearer "+keyParts[0])
 	return nil
 }

relay/channel/claude/adaptor.go

@@ -24,6 +24,11 @@ type Adaptor struct {
 	RequestMode int
 }
 
+func (a *Adaptor) ConvertGeminiRequest(*gin.Context, *relaycommon.RelayInfo, *dto.GeminiChatRequest) (any, error) {
+	//TODO implement me
+	return nil, errors.New("not implemented")
+}
+
 func (a *Adaptor) ConvertClaudeRequest(c *gin.Context, info *relaycommon.RelayInfo, request *dto.ClaudeRequest) (any, error) {
 	return request, nil
 }

relay/channel/claude_code/adaptor.go

@@ -25,6 +25,11 @@ type Adaptor struct {
 	RequestMode int
 }
 
+func (a *Adaptor) ConvertGeminiRequest(*gin.Context, *relaycommon.RelayInfo, *dto.GeminiChatRequest) (any, error) {
+	//TODO implement me
+	return nil, errors.New("not implemented")
+}
+
 func (a *Adaptor) ConvertClaudeRequest(c *gin.Context, info *relaycommon.RelayInfo, request *dto.ClaudeRequest) (any, error) {
 	// Use configured system prompt if available, otherwise use default
 	if info.ChannelSetting.SystemPrompt != "" {

relay/channel/cloudflare/adaptor.go

@@ -18,6 +18,11 @@ import (
 type Adaptor struct {
 }
 
+func (a *Adaptor) ConvertGeminiRequest(*gin.Context, *relaycommon.RelayInfo, *dto.GeminiChatRequest) (any, error) {
+	//TODO implement me
+	return nil, errors.New("not implemented")
+}
+
 func (a *Adaptor) ConvertClaudeRequest(*gin.Context, *relaycommon.RelayInfo, *dto.ClaudeRequest) (any, error) {
 	//TODO implement me
 	panic("implement me")

relay/channel/cohere/adaptor.go

@@ -17,6 +17,11 @@ import (
 type Adaptor struct {
 }
 
+func (a *Adaptor) ConvertGeminiRequest(*gin.Context, *relaycommon.RelayInfo, *dto.GeminiChatRequest) (any, error) {
+	//TODO implement me
+	return nil, errors.New("not implemented")
+}
+
 func (a *Adaptor) ConvertClaudeRequest(*gin.Context, *relaycommon.RelayInfo, *dto.ClaudeRequest) (any, error) {
 	//TODO implement me
 	panic("implement me")

relay/channel/coze/adaptor.go

@@ -18,6 +18,11 @@ import (
 type Adaptor struct {
 }
 
+func (a *Adaptor) ConvertGeminiRequest(*gin.Context, *common.RelayInfo, *dto.GeminiChatRequest) (any, error) {
+	//TODO implement me
+	return nil, errors.New("not implemented")
+}
+
 // ConvertAudioRequest implements channel.Adaptor.
 func (a *Adaptor) ConvertAudioRequest(c *gin.Context, info *common.RelayInfo, request dto.AudioRequest) (io.Reader, error) {
 	return nil, errors.New("not implemented")

relay/channel/deepseek/adaptor.go

@@ -19,6 +19,11 @@ import (
 type Adaptor struct {
 }
 
+func (a *Adaptor) ConvertGeminiRequest(*gin.Context, *relaycommon.RelayInfo, *dto.GeminiChatRequest) (any, error) {
+	//TODO implement me
+	return nil, errors.New("not implemented")
+}
+
 func (a *Adaptor) ConvertClaudeRequest(*gin.Context, *relaycommon.RelayInfo, *dto.ClaudeRequest) (any, error) {
 	//TODO implement me
 	panic("implement me")

relay/channel/dify/adaptor.go

@@ -24,6 +24,11 @@ type Adaptor struct {
 	BotType int
 }
 
+func (a *Adaptor) ConvertGeminiRequest(*gin.Context, *relaycommon.RelayInfo, *dto.GeminiChatRequest) (any, error) {
+	//TODO implement me
+	return nil, errors.New("not implemented")
+}
+
 func (a *Adaptor) ConvertClaudeRequest(*gin.Context, *relaycommon.RelayInfo, *dto.ClaudeRequest) (any, error) {
 	//TODO implement me
 	panic("implement me")

relay/channel/gemini/adaptor.go

@@ -20,6 +20,10 @@ import (
 type Adaptor struct {
 }
 
+func (a *Adaptor) ConvertGeminiRequest(c *gin.Context, info *relaycommon.RelayInfo, request *dto.GeminiChatRequest) (any, error) {
+	return request, nil
+}
+
 func (a *Adaptor) ConvertClaudeRequest(c *gin.Context, info *relaycommon.RelayInfo, req *dto.ClaudeRequest) (any, error) {
 	adaptor := openai.Adaptor{}
 	oaiReq, err := adaptor.ConvertClaudeRequest(c, info, req)
@@ -51,13 +55,13 @@ func (a *Adaptor) ConvertImageRequest(c *gin.Context, info *relaycommon.RelayInf
 	}
 
 	// build gemini imagen request
-	geminiRequest := GeminiImageRequest{
-		Instances: []GeminiImageInstance{
+	geminiRequest := dto.GeminiImageRequest{
+		Instances: []dto.GeminiImageInstance{
 			{
 				Prompt: request.Prompt,
 			},
 		},
-		Parameters: GeminiImageParameters{
+		Parameters: dto.GeminiImageParameters{
 			SampleCount:      request.N,
 			AspectRatio:      aspectRatio,
 			PersonGeneration: "allow_adult", // default allow adult
@@ -138,9 +142,9 @@ func (a *Adaptor) ConvertEmbeddingRequest(c *gin.Context, info *relaycommon.Rela
 	}
 
 	// only process the first input
-	geminiRequest := GeminiEmbeddingRequest{
-		Content: GeminiChatContent{
-			Parts: []GeminiPart{
+	geminiRequest := dto.GeminiEmbeddingRequest{
+		Content: dto.GeminiChatContent{
+			Parts: []dto.GeminiPart{
 				{
 					Text: inputs[0],
 				},

relay/channel/gemini/relay-gemini-native.go

@@ -28,7 +28,7 @@ func GeminiTextGenerationHandler(c *gin.Context, info *relaycommon.RelayInfo, re
 	}
 
 	// 解析为 Gemini 原生响应格式
-	var geminiResponse GeminiChatResponse
+	var geminiResponse dto.GeminiChatResponse
 	err = common.Unmarshal(responseBody, &geminiResponse)
 	if err != nil {
 		return nil, types.NewOpenAIError(err, types.ErrorCodeBadResponseBody, http.StatusInternalServerError)
@@ -71,7 +71,7 @@ func GeminiTextGenerationStreamHandler(c *gin.Context, info *relaycommon.RelayIn
 	responseText := strings.Builder{}
 
 	helper.StreamScannerHandler(c, resp, info, func(data string) bool {
-		var geminiResponse GeminiChatResponse
+		var geminiResponse dto.GeminiChatResponse
 		err := common.UnmarshalJsonStr(data, &geminiResponse)
 		if err != nil {
 			common.LogError(c, "error unmarshalling stream response: "+err.Error())

relay/channel/jimeng/adaptor.go

@@ -4,7 +4,6 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
-	"github.com/gin-gonic/gin"
 	"io"
 	"net/http"
 	"one-api/dto"
@@ -13,11 +12,18 @@ import (
 	relaycommon "one-api/relay/common"
 	relayconstant "one-api/relay/constant"
 	"one-api/types"
+
+	"github.com/gin-gonic/gin"
 )
 
 type Adaptor struct {
 }
 
+func (a *Adaptor) ConvertGeminiRequest(*gin.Context, *relaycommon.RelayInfo, *dto.GeminiChatRequest) (any, error) {
+	//TODO implement me
+	return nil, errors.New("not implemented")
+}
+
 func (a *Adaptor) ConvertClaudeRequest(*gin.Context, *relaycommon.RelayInfo, *dto.ClaudeRequest) (any, error) {
 	return nil, errors.New("not implemented")
 }

relay/channel/jina/adaptor.go

@@ -19,6 +19,11 @@ import (
 type Adaptor struct {
 }
 
+func (a *Adaptor) ConvertGeminiRequest(*gin.Context, *relaycommon.RelayInfo, *dto.GeminiChatRequest) (any, error) {
+	//TODO implement me
+	return nil, errors.New("not implemented")
+}
+
 func (a *Adaptor) ConvertClaudeRequest(*gin.Context, *relaycommon.RelayInfo, *dto.ClaudeRequest) (any, error) {
 	//TODO implement me
 	panic("implement me")

relay/channel/mistral/adaptor.go

@@ -16,6 +16,11 @@ import (
 type Adaptor struct {
 }
 
+func (a *Adaptor) ConvertGeminiRequest(*gin.Context, *relaycommon.RelayInfo, *dto.GeminiChatRequest) (any, error) {
+	//TODO implement me
+	return nil, errors.New("not implemented")
+}
+
 func (a *Adaptor) ConvertClaudeRequest(*gin.Context, *relaycommon.RelayInfo, *dto.ClaudeRequest) (any, error) {
 	//TODO implement me
 	panic("implement me")

relay/channel/mokaai/adaptor.go

@@ -18,6 +18,11 @@ import (
 type Adaptor struct {
 }
 
+func (a *Adaptor) ConvertGeminiRequest(*gin.Context, *relaycommon.RelayInfo, *dto.GeminiChatRequest) (any, error) {
+	//TODO implement me
+	return nil, errors.New("not implemented")
+}
+
 func (a *Adaptor) ConvertClaudeRequest(*gin.Context, *relaycommon.RelayInfo, *dto.ClaudeRequest) (any, error) {
 	//TODO implement me
 	panic("implement me")

relay/channel/ollama/adaptor.go

@@ -17,6 +17,11 @@ import (
 type Adaptor struct {
 }
 
+func (a *Adaptor) ConvertGeminiRequest(*gin.Context, *relaycommon.RelayInfo, *dto.GeminiChatRequest) (any, error) {
+	//TODO implement me
+	return nil, errors.New("not implemented")
+}
+
 func (a *Adaptor) ConvertClaudeRequest(c *gin.Context, info *relaycommon.RelayInfo, request *dto.ClaudeRequest) (any, error) {
 	openaiAdaptor := openai.Adaptor{}
 	openaiRequest, err := openaiAdaptor.ConvertClaudeRequest(c, info, request)

relay/channel/openai/adaptor.go

@@ -34,6 +34,15 @@ type Adaptor struct {
 	ResponseFormat string
 }
 
+func (a *Adaptor) ConvertGeminiRequest(c *gin.Context, info *relaycommon.RelayInfo, request *dto.GeminiChatRequest) (any, error) {
+	// 使用 service.GeminiToOpenAIRequest 转换请求格式
+	openaiRequest, err := service.GeminiToOpenAIRequest(request, info)
+	if err != nil {
+		return nil, err
+	}
+	return a.ConvertOpenAIRequest(c, info, openaiRequest)
+}
+
 func (a *Adaptor) ConvertClaudeRequest(c *gin.Context, info *relaycommon.RelayInfo, request *dto.ClaudeRequest) (any, error) {
 	//if !strings.Contains(request.Model, "claude") {
 	//	return nil, fmt.Errorf("you are using openai channel type with path /v1/messages, only claude model supported convert, but got %s", request.Model)
@@ -64,7 +73,7 @@ func (a *Adaptor) Init(info *relaycommon.RelayInfo) {
 }
 
 func (a *Adaptor) GetRequestURL(info *relaycommon.RelayInfo) (string, error) {
-	if info.RelayFormat == relaycommon.RelayFormatClaude {
+	if info.RelayFormat == relaycommon.RelayFormatClaude || info.RelayFormat == relaycommon.RelayFormatGemini {
 		return fmt.Sprintf("%s/v1/chat/completions", info.BaseUrl), nil
 	}
 	if info.RelayMode == relayconstant.RelayModeRealtime {

relay/channel/openai/helper.go

@@ -2,6 +2,8 @@ package openai
 
 import (
 	"encoding/json"
+	"errors"
+	"net/http"
 	"one-api/common"
 	"one-api/dto"
 	relaycommon "one-api/relay/common"
@@ -16,11 +18,14 @@ import (
 // 辅助函数
 func HandleStreamFormat(c *gin.Context, info *relaycommon.RelayInfo, data string, forceFormat bool, thinkToContent bool) error {
 	info.SendResponseCount++
+
 	switch info.RelayFormat {
 	case relaycommon.RelayFormatOpenAI:
 		return sendStreamData(c, info, data, forceFormat, thinkToContent)
 	case relaycommon.RelayFormatClaude:
 		return handleClaudeFormat(c, data, info)
+	case relaycommon.RelayFormatGemini:
+		return handleGeminiFormat(c, data, info)
 	}
 	return nil
 }
@@ -41,6 +46,46 @@ func handleClaudeFormat(c *gin.Context, data string, info *relaycommon.RelayInfo
 	return nil
 }
 
+func handleGeminiFormat(c *gin.Context, data string, info *relaycommon.RelayInfo) error {
+	// 截取前50个字符用于调试
+	debugData := data
+	if len(data) > 50 {
+		debugData = data[:50] + "..."
+	}
+	common.LogInfo(c, "handleGeminiFormat called with data: "+debugData)
+
+	var streamResponse dto.ChatCompletionsStreamResponse
+	if err := common.Unmarshal(common.StringToByteSlice(data), &streamResponse); err != nil {
+		common.LogError(c, "failed to unmarshal stream response: "+err.Error())
+		return err
+	}
+
+	common.LogInfo(c, "successfully unmarshaled stream response")
+	geminiResponse := service.StreamResponseOpenAI2Gemini(&streamResponse, info)
+
+	// 如果返回 nil，表示没有实际内容，跳过发送
+	if geminiResponse == nil {
+		common.LogInfo(c, "handleGeminiFormat: no content to send, skipping")
+		return nil
+	}
+
+	geminiResponseStr, err := common.Marshal(geminiResponse)
+	if err != nil {
+		common.LogError(c, "failed to marshal gemini response: "+err.Error())
+		return err
+	}
+
+	common.LogInfo(c, "sending gemini format response")
+	// send gemini format response
+	c.Render(-1, common.CustomEvent{Data: "data: " + string(geminiResponseStr)})
+	if flusher, ok := c.Writer.(http.Flusher); ok {
+		flusher.Flush()
+	} else {
+		return errors.New("streaming error: flusher not found")
+	}
+	return nil
+}
+
 func ProcessStreamResponse(streamResponse dto.ChatCompletionsStreamResponse, responseTextBuilder *strings.Builder, toolCount *int) error {
 	for _, choice := range streamResponse.Choices {
 		responseTextBuilder.WriteString(choice.Delta.GetContentString())
@@ -185,6 +230,37 @@ func HandleFinalResponse(c *gin.Context, info *relaycommon.RelayInfo, lastStream
 		for _, resp := range claudeResponses {
 			_ = helper.ClaudeData(c, *resp)
 		}
+
+	case relaycommon.RelayFormatGemini:
+		var streamResponse dto.ChatCompletionsStreamResponse
+		if err := common.Unmarshal(common.StringToByteSlice(lastStreamData), &streamResponse); err != nil {
+			common.SysError("error unmarshalling stream response: " + err.Error())
+			return
+		}
+
+		// 这里处理的是 openai 最后一个流响应，其 delta 为空，有 finish_reason 字段
+		// 因此相比较于 google 官方的流响应，由 openai 转换而来会多一个 parts 为空，finishReason 为 STOP 的响应
+		// 而包含最后一段文本输出的响应（倒数第二个）的 finishReason 为 null
+		// 暂不知是否有程序会不兼容。
+
+		geminiResponse := service.StreamResponseOpenAI2Gemini(&streamResponse, info)
+
+		// openai 流响应开头的空数据
+		if geminiResponse == nil {
+			return
+		}
+
+		geminiResponseStr, err := common.Marshal(geminiResponse)
+		if err != nil {
+			common.SysError("error marshalling gemini response: " + err.Error())
+			return
+		}
+
+		// 发送最终的 Gemini 响应
+		c.Render(-1, common.CustomEvent{Data: "data: " + string(geminiResponseStr)})
+		if flusher, ok := c.Writer.(http.Flusher); ok {
+			flusher.Flush()
+		}
 	}
 }
 

relay/channel/openai/relay-openai.go

@@ -223,6 +223,13 @@ func OpenaiHandler(c *gin.Context, info *relaycommon.RelayInfo, resp *http.Respo
 			return nil, types.NewError(err, types.ErrorCodeBadResponseBody)
 		}
 		responseBody = claudeRespStr
+	case relaycommon.RelayFormatGemini:
+		geminiResp := service.ResponseOpenAI2Gemini(&simpleResponse, info)
+		geminiRespStr, err := common.Marshal(geminiResp)
+		if err != nil {
+			return nil, types.NewError(err, types.ErrorCodeBadResponseBody)
+		}
+		responseBody = geminiRespStr
 	}
 
 	common.IOCopyBytesGracefully(c, resp, responseBody)

relay/channel/palm/adaptor.go

@@ -17,6 +17,11 @@ import (
 type Adaptor struct {
 }
 
+func (a *Adaptor) ConvertGeminiRequest(*gin.Context, *relaycommon.RelayInfo, *dto.GeminiChatRequest) (any, error) {
+	//TODO implement me
+	return nil, errors.New("not implemented")
+}
+
 func (a *Adaptor) ConvertClaudeRequest(*gin.Context, *relaycommon.RelayInfo, *dto.ClaudeRequest) (any, error) {
 	//TODO implement me
 	panic("implement me")

relay/channel/perplexity/adaptor.go

@@ -17,6 +17,11 @@ import (
 type Adaptor struct {
 }
 
+func (a *Adaptor) ConvertGeminiRequest(*gin.Context, *relaycommon.RelayInfo, *dto.GeminiChatRequest) (any, error) {
+	//TODO implement me
+	return nil, errors.New("not implemented")
+}
+
 func (a *Adaptor) ConvertClaudeRequest(*gin.Context, *relaycommon.RelayInfo, *dto.ClaudeRequest) (any, error) {
 	//TODO implement me
 	panic("implement me")

relay/channel/siliconflow/adaptor.go

@@ -18,6 +18,11 @@ import (
 type Adaptor struct {
 }
 
+func (a *Adaptor) ConvertGeminiRequest(*gin.Context, *relaycommon.RelayInfo, *dto.GeminiChatRequest) (any, error) {
+	//TODO implement me
+	return nil, errors.New("not implemented")
+}
+
 func (a *Adaptor) ConvertClaudeRequest(c *gin.Context, info *relaycommon.RelayInfo, req *dto.ClaudeRequest) (any, error) {
 	adaptor := openai.Adaptor{}
 	return adaptor.ConvertClaudeRequest(c, info, req)

relay/channel/tencent/adaptor.go

@@ -25,6 +25,11 @@ type Adaptor struct {
 	Timestamp int64
 }
 
+func (a *Adaptor) ConvertGeminiRequest(*gin.Context, *relaycommon.RelayInfo, *dto.GeminiChatRequest) (any, error) {
+	//TODO implement me
+	return nil, errors.New("not implemented")
+}
+
 func (a *Adaptor) ConvertClaudeRequest(*gin.Context, *relaycommon.RelayInfo, *dto.ClaudeRequest) (any, error) {
 	//TODO implement me
 	panic("implement me")

relay/channel/vertex/adaptor.go

@@ -44,6 +44,10 @@ type Adaptor struct {
 	AccountCredentials Credentials
 }
 
+func (a *Adaptor) ConvertGeminiRequest(c *gin.Context, info *relaycommon.RelayInfo, request *dto.GeminiChatRequest) (any, error) {
+	return request, nil
+}
+
 func (a *Adaptor) ConvertClaudeRequest(c *gin.Context, info *relaycommon.RelayInfo, request *dto.ClaudeRequest) (any, error) {
 	if v, ok := claudeModelMap[info.UpstreamModelName]; ok {
 		c.Set("request_model", v)

relay/channel/volcengine/adaptor.go

@@ -23,6 +23,11 @@ import (
 type Adaptor struct {
 }
 
+func (a *Adaptor) ConvertGeminiRequest(*gin.Context, *relaycommon.RelayInfo, *dto.GeminiChatRequest) (any, error) {
+	//TODO implement me
+	return nil, errors.New("not implemented")
+}
+
 func (a *Adaptor) ConvertClaudeRequest(*gin.Context, *relaycommon.RelayInfo, *dto.ClaudeRequest) (any, error) {
 	//TODO implement me
 	panic("implement me")

relay/channel/xai/adaptor.go

@@ -19,6 +19,11 @@ import (
 type Adaptor struct {
 }
 
+func (a *Adaptor) ConvertGeminiRequest(*gin.Context, *relaycommon.RelayInfo, *dto.GeminiChatRequest) (any, error) {
+	//TODO implement me
+	return nil, errors.New("not implemented")
+}
+
 func (a *Adaptor) ConvertClaudeRequest(*gin.Context, *relaycommon.RelayInfo, *dto.ClaudeRequest) (any, error) {
 	//TODO implement me
 	//panic("implement me")

relay/channel/xunfei/adaptor.go

@@ -17,6 +17,11 @@ type Adaptor struct {
 	request *dto.GeneralOpenAIRequest
 }
 
+func (a *Adaptor) ConvertGeminiRequest(*gin.Context, *relaycommon.RelayInfo, *dto.GeminiChatRequest) (any, error) {
+	//TODO implement me
+	return nil, errors.New("not implemented")
+}
+
 func (a *Adaptor) ConvertClaudeRequest(*gin.Context, *relaycommon.RelayInfo, *dto.ClaudeRequest) (any, error) {
 	//TODO implement me
 	panic("implement me")

relay/channel/zhipu/adaptor.go

@@ -16,6 +16,11 @@ import (
 type Adaptor struct {
 }
 
+func (a *Adaptor) ConvertGeminiRequest(*gin.Context, *relaycommon.RelayInfo, *dto.GeminiChatRequest) (any, error) {
+	//TODO implement me
+	return nil, errors.New("not implemented")
+}
+
 func (a *Adaptor) ConvertClaudeRequest(*gin.Context, *relaycommon.RelayInfo, *dto.ClaudeRequest) (any, error) {
 	//TODO implement me
 	panic("implement me")

relay/channel/zhipu_4v/adaptor.go

@@ -18,6 +18,11 @@ import (
 type Adaptor struct {
 }
 
+func (a *Adaptor) ConvertGeminiRequest(*gin.Context, *relaycommon.RelayInfo, *dto.GeminiChatRequest) (any, error) {
+	//TODO implement me
+	return nil, errors.New("not implemented")
+}
+
 func (a *Adaptor) ConvertClaudeRequest(*gin.Context, *relaycommon.RelayInfo, *dto.ClaudeRequest) (any, error) {
 	//TODO implement me
 	panic("implement me")

relay/gemini_handler.go

@@ -20,8 +20,8 @@ import (
 	"github.com/gin-gonic/gin"
 )
 
-func getAndValidateGeminiRequest(c *gin.Context) (*gemini.GeminiChatRequest, error) {
-	request := &gemini.GeminiChatRequest{}
+func getAndValidateGeminiRequest(c *gin.Context) (*dto.GeminiChatRequest, error) {
+	request := &dto.GeminiChatRequest{}
 	err := common.UnmarshalBodyReusable(c, request)
 	if err != nil {
 		return nil, err
@@ -44,7 +44,7 @@ func checkGeminiStreamMode(c *gin.Context, relayInfo *relaycommon.RelayInfo) {
 	// }
 }
 
-func checkGeminiInputSensitive(textRequest *gemini.GeminiChatRequest) ([]string, error) {
+func checkGeminiInputSensitive(textRequest *dto.GeminiChatRequest) ([]string, error) {
 	var inputTexts []string
 	for _, content := range textRequest.Contents {
 		for _, part := range content.Parts {
@@ -61,7 +61,7 @@ func checkGeminiInputSensitive(textRequest *gemini.GeminiChatRequest) ([]string,
 	return sensitiveWords, err
 }
 
-func getGeminiInputTokens(req *gemini.GeminiChatRequest, info *relaycommon.RelayInfo) int {
+func getGeminiInputTokens(req *dto.GeminiChatRequest, info *relaycommon.RelayInfo) int {
 	// 计算输入 token 数量
 	var inputTexts []string
 	for _, content := range req.Contents {
@@ -78,7 +78,7 @@ func getGeminiInputTokens(req *gemini.GeminiChatRequest, info *relaycommon.Relay
 	return inputTokens
 }
 
-func isNoThinkingRequest(req *gemini.GeminiChatRequest) bool {
+func isNoThinkingRequest(req *dto.GeminiChatRequest) bool {
 	if req.GenerationConfig.ThinkingConfig != nil && req.GenerationConfig.ThinkingConfig.ThinkingBudget != nil {
 		return *req.GenerationConfig.ThinkingConfig.ThinkingBudget == 0
 	}
@@ -202,7 +202,12 @@ func GeminiHelper(c *gin.Context) (newAPIError *types.NewAPIError) {
 		}
 		requestBody = bytes.NewReader(body)
 	} else {
-		jsonData, err := common.Marshal(req)
+		// 使用 ConvertGeminiRequest 转换请求格式
+		convertedRequest, err := adaptor.ConvertGeminiRequest(c, relayInfo, req)
+		if err != nil {
+			return types.NewError(err, types.ErrorCodeConvertRequestFailed, types.ErrOptionWithSkipRetry())
+		}
+		jsonData, err := common.Marshal(convertedRequest)
 		if err != nil {
 			return types.NewError(err, types.ErrorCodeConvertRequestFailed, types.ErrOptionWithSkipRetry())
 		}