diff --git a/src/apis/trans.js b/src/apis/trans.js
index b31e3d3..abca46e 100644
--- a/src/apis/trans.js
+++ b/src/apis/trans.js
@@ -291,6 +291,8 @@ const genGemini = ({
   systemPrompt,
   userPrompt,
   model,
+  temperature,
+  maxTokens,
 }) => {
   url = url
     .replaceAll(INPUT_PLACE_MODEL, model)
@@ -311,10 +313,17 @@ const genGemini = ({
       },
     },
     contents: {
+      role: "user",
       parts: {
         text: userPrompt,
       },
     },
+    generationConfig: {
+      maxOutputTokens: maxTokens,
+      temperature,
+      // topP: 0.8,
+      // topK: 10,
+    },
   };
 
   const init = {
diff --git a/src/config/index.js b/src/config/index.js
index 33c01d5..b065c26 100644
--- a/src/config/index.js
+++ b/src/config/index.js
@@ -669,9 +669,11 @@ export const DEFAULT_TRANS_APIS = {
   [OPT_TRANS_GEMINI]: {
     url: `https://generativelanguage.googleapis.com/v1/models/${INPUT_PLACE_MODEL}:generateContent?key=${INPUT_PLACE_KEY}`,
     key: "",
-    model: "gemini-pro",
+    model: "gemini-2.5-flash",
     systemPrompt: `You are a professional, authentic machine translation engine.`,
     userPrompt: `Translate the following source text from ${INPUT_PLACE_FROM} to ${INPUT_PLACE_TO}. Output translation directly without any additional text.\n\nSource Text: ${INPUT_PLACE_TEXT}\n\nTranslated Text:`,
+    temperature: 0,
+    maxTokens: 2048,
     fetchLimit: 1,
     fetchInterval: 500,
     apiName: OPT_TRANS_GEMINI,
diff --git a/src/views/Options/Apis.js b/src/views/Options/Apis.js
index 5ae40c1..d20c656 100644
--- a/src/views/Options/Apis.js
+++ b/src/views/Options/Apis.js
@@ -301,7 +301,8 @@ function ApiFields({ translator }) {
       )}
 
       {(translator.startsWith(OPT_TRANS_OPENAI) ||
-        translator === OPT_TRANS_CLAUDE) && (
+        translator === OPT_TRANS_CLAUDE ||
+        translator === OPT_TRANS_GEMINI) && (
         <>
           <TextField
             size="small"