diff --git a/dto/gemini.go b/dto/gemini.go
index 5df67ba0b7af..3f2f3ab0a553 100644
--- a/dto/gemini.go
+++ b/dto/gemini.go
@@ -272,6 +272,7 @@ type GeminiUsageMetadata struct {
 	CandidatesTokenCount int                         `json:"candidatesTokenCount"`
 	TotalTokenCount      int                         `json:"totalTokenCount"`
 	ThoughtsTokenCount   int                         `json:"thoughtsTokenCount"`
+	ToolUsePromptTokenCount int                      `json:"toolUsePromptTokenCount"`
 	PromptTokensDetails  []GeminiPromptTokensDetails `json:"promptTokensDetails"`
 }
 
diff --git a/relay/channel/gemini/relay-gemini-native.go b/relay/channel/gemini/relay-gemini-native.go
index 974a22f50a74..5d1707665743 100644
--- a/relay/channel/gemini/relay-gemini-native.go
+++ b/relay/channel/gemini/relay-gemini-native.go
@@ -39,7 +39,7 @@ func GeminiTextGenerationHandler(c *gin.Context, info *relaycommon.RelayInfo, re
 
 	// 计算使用量（基于 UsageMetadata）
 	usage := dto.Usage{
-		PromptTokens:     geminiResponse.UsageMetadata.PromptTokenCount,
+		PromptTokens:     geminiResponse.UsageMetadata.PromptTokenCount + geminiResponse.UsageMetadata.ToolUsePromptTokenCount,
 		CompletionTokens: geminiResponse.UsageMetadata.CandidatesTokenCount + geminiResponse.UsageMetadata.ThoughtsTokenCount,
 		TotalTokens:      geminiResponse.UsageMetadata.TotalTokenCount,
 	}
@@ -125,7 +125,7 @@ func GeminiTextGenerationStreamHandler(c *gin.Context, info *relaycommon.RelayIn
 
 		// 更新使用量统计
 		if geminiResponse.UsageMetadata.TotalTokenCount != 0 {
-			usage.PromptTokens = geminiResponse.UsageMetadata.PromptTokenCount
+			usage.PromptTokens = geminiResponse.UsageMetadata.PromptTokenCount + geminiResponse.UsageMetadata.ToolUsePromptTokenCount
 			usage.CompletionTokens = geminiResponse.UsageMetadata.CandidatesTokenCount + geminiResponse.UsageMetadata.ThoughtsTokenCount
 			usage.TotalTokens = geminiResponse.UsageMetadata.TotalTokenCount
 			usage.CompletionTokenDetails.ReasoningTokens = geminiResponse.UsageMetadata.ThoughtsTokenCount
diff --git a/relay/channel/gemini/relay-gemini.go b/relay/channel/gemini/relay-gemini.go
index 199c84664be2..a598450c1cbc 100644
--- a/relay/channel/gemini/relay-gemini.go
+++ b/relay/channel/gemini/relay-gemini.go
@@ -934,8 +934,8 @@ func GeminiChatStreamHandler(c *gin.Context, info *relaycommon.RelayInfo, resp *
 		response.Created = createAt
 		response.Model = info.UpstreamModelName
 		if geminiResponse.UsageMetadata.TotalTokenCount != 0 {
-			usage.PromptTokens = geminiResponse.UsageMetadata.PromptTokenCount
-			usage.CompletionTokens = geminiResponse.UsageMetadata.CandidatesTokenCount
+			usage.PromptTokens = geminiResponse.UsageMetadata.PromptTokenCount + geminiResponse.UsageMetadata.ToolUsePromptTokenCount
+			usage.CompletionTokens = geminiResponse.UsageMetadata.CandidatesTokenCount + geminiResponse.UsageMetadata.ThoughtsTokenCount
 			usage.CompletionTokenDetails.ReasoningTokens = geminiResponse.UsageMetadata.ThoughtsTokenCount
 			usage.TotalTokens = geminiResponse.UsageMetadata.TotalTokenCount
 			for _, detail := range geminiResponse.UsageMetadata.PromptTokensDetails {
@@ -994,8 +994,12 @@ func GeminiChatStreamHandler(c *gin.Context, info *relaycommon.RelayInfo, resp *
 		}
 	}
 
-	usage.PromptTokensDetails.TextTokens = usage.PromptTokens
-	usage.CompletionTokens = usage.TotalTokens - usage.PromptTokens
+	if usage.PromptTokensDetails.TextTokens == 0 && usage.PromptTokensDetails.AudioTokens == 0 && usage.PromptTokensDetails.ImageTokens == 0 {
+		usage.PromptTokensDetails.TextTokens = usage.PromptTokens
+	}
+	if usage.TotalTokens > 0 && usage.CompletionTokens == 0 && usage.TotalTokens >= usage.PromptTokens {
+		usage.CompletionTokens = usage.TotalTokens - usage.PromptTokens
+	}
 
 	if usage.CompletionTokens == 0 {
 		str := responseText.String()
@@ -1039,13 +1043,16 @@ func GeminiChatHandler(c *gin.Context, info *relaycommon.RelayInfo, resp *http.R
 	fullTextResponse := responseGeminiChat2OpenAI(c, &geminiResponse)
 	fullTextResponse.Model = info.UpstreamModelName
 	usage := dto.Usage{
-		PromptTokens:     geminiResponse.UsageMetadata.PromptTokenCount,
-		CompletionTokens: geminiResponse.UsageMetadata.CandidatesTokenCount,
+		PromptTokens:     geminiResponse.UsageMetadata.PromptTokenCount + geminiResponse.UsageMetadata.ToolUsePromptTokenCount,
+		CompletionTokens: geminiResponse.UsageMetadata.CandidatesTokenCount + geminiResponse.UsageMetadata.ThoughtsTokenCount,
 		TotalTokens:      geminiResponse.UsageMetadata.TotalTokenCount,
 	}
 
 	usage.CompletionTokenDetails.ReasoningTokens = geminiResponse.UsageMetadata.ThoughtsTokenCount
-	usage.CompletionTokens = usage.TotalTokens - usage.PromptTokens
+	if usage.TotalTokens > 0 && usage.CompletionTokens == 0 && usage.TotalTokens >= usage.PromptTokens {
+		usage.CompletionTokens = usage.TotalTokens - usage.PromptTokens
+	}
+
 
 	for _, detail := range geminiResponse.UsageMetadata.PromptTokensDetails {
 		if detail.Modality == "AUDIO" {