diff --git a/common/model-ratio.go b/common/model-ratio.go
index 664cd1d..4916449 100644
--- a/common/model-ratio.go
+++ b/common/model-ratio.go
@@ -106,8 +106,10 @@ var defaultModelRatio = map[string]float64{
 	"gemini-pro-vision":              1, // $0.00025 / 1k characters -> $0.001 / 1k tokens
 	"gemini-1.0-pro-vision-001":      1,
 	"gemini-1.0-pro-001":             1,
-	"gemini-1.5-pro-latest":          1,
+	"gemini-1.5-pro-latest":          1.75, // $3.5 / 1M tokens
+	"gemini-1.5-pro-exp-0827":        1.75, // $3.5 / 1M tokens
 	"gemini-1.5-flash-latest":        1,
+	"gemini-1.5-flash-exp-0827":      1,
 	"gemini-1.0-pro-latest":          1,
 	"gemini-1.0-pro-vision-latest":   1,
 	"gemini-ultra":                   1,
diff --git a/constant/env.go b/constant/env.go
index dd3ae65..c5d498d 100644
--- a/constant/env.go
+++ b/constant/env.go
@@ -20,14 +20,16 @@ var GetMediaTokenNotStream = common.GetEnvOrDefaultBool("GET_MEDIA_TOKEN_NOT_STR
 var UpdateTask = common.GetEnvOrDefaultBool("UPDATE_TASK", true)
 
 var GeminiModelMap = map[string]string{
-	"gemini-1.5-pro-latest":   "v1beta",
-	"gemini-1.5-pro-001":      "v1beta",
-	"gemini-1.5-pro":          "v1beta",
-	"gemini-1.5-pro-exp-0801": "v1beta",
-	"gemini-1.5-flash-latest": "v1beta",
-	"gemini-1.5-flash-001":    "v1beta",
-	"gemini-1.5-flash":        "v1beta",
-	"gemini-ultra":            "v1beta",
+	"gemini-1.5-pro-latest":     "v1beta",
+	"gemini-1.5-pro-001":        "v1beta",
+	"gemini-1.5-pro":            "v1beta",
+	"gemini-1.5-pro-exp-0801":   "v1beta",
+	"gemini-1.5-pro-exp-0827":   "v1beta",
+	"gemini-1.5-flash-latest":   "v1beta",
+	"gemini-1.5-flash-exp-0827": "v1beta",
+	"gemini-1.5-flash-001":      "v1beta",
+	"gemini-1.5-flash":          "v1beta",
+	"gemini-ultra":              "v1beta",
 }
 
 func InitEnv() {
diff --git a/relay/channel/gemini/constant.go b/relay/channel/gemini/constant.go
index 621336b..4a2e4dd 100644
--- a/relay/channel/gemini/constant.go
+++ b/relay/channel/gemini/constant.go
@@ -6,7 +6,7 @@ const (
 
 var ModelList = []string{
 	"gemini-1.0-pro-latest", "gemini-1.0-pro-001", "gemini-1.5-pro-latest", "gemini-1.5-flash-latest", "gemini-ultra",
-	"gemini-1.0-pro-vision-latest", "gemini-1.0-pro-vision-001",
+	"gemini-1.0-pro-vision-latest", "gemini-1.0-pro-vision-001", "gemini-1.5-pro-exp-0827", "gemini-1.5-flash-exp-0827",
 }
 
 var ChannelName = "google gemini"