diff --git a/pages/src/content/docs/en/configuration.md b/pages/src/content/docs/en/configuration.md
index 1f3c19e0..52e01b0d 100644
--- a/pages/src/content/docs/en/configuration.md
+++ b/pages/src/content/docs/en/configuration.md
@@ -84,6 +84,8 @@ ocr config set custom_providers.openai-responses-gateway.model        gpt-5
 ocr config set custom_providers.openai-responses-gateway.api_key      "$OPENAI_API_KEY"
 ```
 
+The `url` can be either the API base URL or the full `/responses` endpoint — OCR normalizes it either way.
+
 A local model served by Ollama is just a custom provider pointing at the
 local OpenAI-compatible endpoint:
 
diff --git a/pages/src/content/docs/ja/configuration.md b/pages/src/content/docs/ja/configuration.md
index 64172888..a4a8b9b4 100644
--- a/pages/src/content/docs/ja/configuration.md
+++ b/pages/src/content/docs/ja/configuration.md
@@ -82,6 +82,8 @@ ocr config set custom_providers.openai-responses-gateway.model        gpt-5
 ocr config set custom_providers.openai-responses-gateway.api_key      "$OPENAI_API_KEY"
 ```
 
+`url` には API の Base URL または完全な `/responses` エンドポイントのどちらを指定してもよく、OCR がどちらの形式も正規化します。
+
 Ollama で動かすローカルモデルは、ローカルの OpenAI 互換エンドポイントを
 指すカスタム provider にすぎません。
 
diff --git a/pages/src/content/docs/zh/configuration.md b/pages/src/content/docs/zh/configuration.md
index ffb0914c..396aaf67 100644
--- a/pages/src/content/docs/zh/configuration.md
+++ b/pages/src/content/docs/zh/configuration.md
@@ -80,6 +80,8 @@ ocr config set custom_providers.openai-responses-gateway.model        gpt-5
 ocr config set custom_providers.openai-responses-gateway.api_key      "$OPENAI_API_KEY"
 ```
 
+`url` 既可以填 API 的 Base URL，也可以填完整的 `/responses` 端点，OCR 会自动归一化处理。
+
 用 Ollama 跑本地模型，就是一个指向本地 OpenAI 兼容端点的自定义 provider：
 
 ```bash