diff --git a/src/components/providers/forms/ClaudeFormFields.tsx b/src/components/providers/forms/ClaudeFormFields.tsx
index 351f11b41..e3e1d5311 100644
--- a/src/components/providers/forms/ClaudeFormFields.tsx
+++ b/src/components/providers/forms/ClaudeFormFields.tsx
@@ -222,9 +222,7 @@ export function ClaudeFormFields({
             {/* 推理模型 */}
             <div className="space-y-2">
               <FormLabel htmlFor="reasoningModel">
-                {t("providerForm.anthropicReasoningModel", {
-                  defaultValue: "推理模型 (Thinking)",
-                })}
+                {t("providerForm.anthropicReasoningModel")}
               </FormLabel>
               <Input
                 id="reasoningModel"
@@ -233,9 +231,6 @@ export function ClaudeFormFields({
                 onChange={(e) =>
                   onModelChange("ANTHROPIC_REASONING_MODEL", e.target.value)
                 }
-                placeholder={t("providerForm.reasoningModelPlaceholder", {
-                  defaultValue: "",
-                })}
                 autoComplete="off"
               />
             </div>
diff --git a/src/i18n/locales/en.json b/src/i18n/locales/en.json
index a67f8225d..c10a86f68 100644
--- a/src/i18n/locales/en.json
+++ b/src/i18n/locales/en.json
@@ -343,7 +343,6 @@
     "anthropicModel": "Main Model",
     "anthropicSmallFastModel": "Fast Model",
     "anthropicReasoningModel": "Reasoning Model (Thinking)",
-    "reasoningModelPlaceholder": "e.g. claude-sonnet-4-20250514",
     "openrouterCompatMode": "OpenRouter Compatibility Mode",
     "openrouterCompatModeHint": "Use OpenAI Chat Completions interface and convert to Anthropic SSE.",
     "anthropicDefaultHaikuModel": "Default Haiku Model",
diff --git a/src/i18n/locales/ja.json b/src/i18n/locales/ja.json
index 4ee529b38..73746946d 100644
--- a/src/i18n/locales/ja.json
+++ b/src/i18n/locales/ja.json
@@ -343,7 +343,6 @@
     "anthropicModel": "メインモデル",
     "anthropicSmallFastModel": "高速モデル",
     "anthropicReasoningModel": "推論モデル（Thinking）",
-    "reasoningModelPlaceholder": "例: claude-sonnet-4-20250514",
     "openrouterCompatMode": "OpenRouter 互換モード",
     "openrouterCompatModeHint": "OpenAI Chat Completions インターフェースを使用し、Anthropic SSE に変換します。",
     "anthropicDefaultHaikuModel": "既定 Haiku モデル",
diff --git a/src/i18n/locales/zh.json b/src/i18n/locales/zh.json
index b0d9ac1e4..2f4bec1c6 100644
--- a/src/i18n/locales/zh.json
+++ b/src/i18n/locales/zh.json
@@ -343,7 +343,6 @@
     "anthropicModel": "主模型",
     "anthropicSmallFastModel": "快速模型",
     "anthropicReasoningModel": "推理模型 (Thinking)",
-    "reasoningModelPlaceholder": "如 claude-sonnet-4-20250514",
     "openrouterCompatMode": "OpenRouter 兼容模式",
     "openrouterCompatModeHint": "使用 OpenAI Chat Completions 接口并转换为 Anthropic SSE。",
     "anthropicDefaultHaikuModel": "Haiku 默认模型",