diff --git a/README.ja.md b/README.ja.md
index 88008a9..ee40618 100644
--- a/README.ja.md
+++ b/README.ja.md
@@ -120,7 +120,7 @@ zeroclaw daemon
 ```toml
 api_key = "sk-..."
 default_provider = "openrouter"
-default_model = "anthropic/claude-sonnet-4"
+default_model = "anthropic/claude-sonnet-4-6"
 default_temperature = 0.7
 
 [memory]
diff --git a/README.md b/README.md
index ce2cce9..d43b74f 100644
--- a/README.md
+++ b/README.md
@@ -476,7 +476,7 @@ Config: `~/.zeroclaw/config.toml` (created by `onboard`)
 ```toml
 api_key = "sk-..."
 default_provider = "openrouter"
-default_model = "anthropic/claude-sonnet-4"
+default_model = "anthropic/claude-sonnet-4-6"
 default_temperature = 0.7
 
 # Custom OpenAI-compatible endpoint
diff --git a/README.ru.md b/README.ru.md
index d51e5fa..e0dde0b 100644
--- a/README.ru.md
+++ b/README.ru.md
@@ -120,7 +120,7 @@ zeroclaw daemon
 ```toml
 api_key = "sk-..."
 default_provider = "openrouter"
-default_model = "anthropic/claude-sonnet-4"
+default_model = "anthropic/claude-sonnet-4-6"
 default_temperature = 0.7
 
 [memory]
diff --git a/README.zh-CN.md b/README.zh-CN.md
index 33232e1..e633df2 100644
--- a/README.zh-CN.md
+++ b/README.zh-CN.md
@@ -5,7 +5,7 @@
 <h1 align="center">ZeroClaw 🦀（简体中文）</h1>
 
 <p align="center">
-  <strong>Zero overhead. Zero compromise. 100% Rust. 100% Agnostic.</strong>
+  <strong>零开销、零妥协；随处部署、万物可换。</strong>
 </p>
 
 <p align="center">
@@ -125,7 +125,7 @@ zeroclaw daemon
 ```toml
 api_key = "sk-..."
 default_provider = "openrouter"
-default_model = "anthropic/claude-sonnet-4"
+default_model = "anthropic/claude-sonnet-4-6"
 default_temperature = 0.7
 
 [memory]