diff --git a/.env b/.env
index 4688642..dcebc6e 100644
--- a/.env
+++ b/.env
@@ -30,6 +30,10 @@ VOLCENGINE_BASE_URL=https://ark.cn-beijing.volces.com/api/v3
 ANTHROPIC_API_KEY=sk-43ccdb29caa7e9ebe0db8ac0958c63f6d3a2d62e59064d3d26d94332055a9bc9
 ANTHROPIC_BASE_URL=https://code.warpdevloper.cloud
 
+# Claude 备用中转（Anthropic 风格）
+ANTHROPIC_ALT_API_KEY=sk-ac5544257dcf843de887fa153c4f4a11fa5007cbae4b8f4eec895a354c89ff7b
+ANTHROPIC_ALT_BASE_URL=http://98.142.250.143:8080
+
 # OpenAI（OpenAI 兼容风格）
 OPENAI_API_KEY=sk-12663c3a1ae5db0bc9aee78ffa64e7a0b95bcf7a15541040dd2bce573130f5c8
 OPENAI_BASE_URL=https://re.94xy.cn/v1
diff --git a/.env.prod b/.env.prod
index 0130cf5..9c361bc 100644
--- a/.env.prod
+++ b/.env.prod
@@ -30,6 +30,10 @@ VOLCENGINE_BASE_URL=https://ark.cn-beijing.volces.com/api/v3
 ANTHROPIC_API_KEY=sk-43ccdb29caa7e9ebe0db8ac0958c63f6d3a2d62e59064d3d26d94332055a9bc9
 ANTHROPIC_BASE_URL=https://code.warpdevloper.cloud
 
+# Claude 备用中转（Anthropic 风格）
+ANTHROPIC_ALT_API_KEY=sk-ac5544257dcf843de887fa153c4f4a11fa5007cbae4b8f4eec895a354c89ff7b
+ANTHROPIC_ALT_BASE_URL=http://98.142.250.143:8080
+
 # OpenAI（OpenAI 兼容风格）
 OPENAI_API_KEY=sk-12663c3a1ae5db0bc9aee78ffa64e7a0b95bcf7a15541040dd2bce573130f5c8
 OPENAI_BASE_URL=https://re.94xy.cn/v1
diff --git a/.env.test b/.env.test
index 46891ea..a023a96 100644
--- a/.env.test
+++ b/.env.test
@@ -26,6 +26,10 @@ DB_POOL_TIMEOUT=30
 VOLCENGINE_API_KEY=fd065993-bee2-4f31-8bf2-56d5d3012c02
 VOLCENGINE_BASE_URL=https://ark.cn-beijing.volces.com/api/v3
 
+# Claude 备用中转（Anthropic 风格）
+ANTHROPIC_ALT_API_KEY=sk-ac5544257dcf843de887fa153c4f4a11fa5007cbae4b8f4eec895a354c89ff7b
+ANTHROPIC_ALT_BASE_URL=http://98.142.250.143:8080
+
 # OpenAI（OpenAI 兼容风格）
 OPENAI_API_KEY=sk-12663c3a1ae5db0bc9aee78ffa64e7a0b95bcf7a15541040dd2bce573130f5c8
 OPENAI_BASE_URL=https://re.94xy.cn/v1
diff --git a/app/ai/model_config.py b/app/ai/model_config.py
index 3601ffb..6c141e6 100644
--- a/app/ai/model_config.py
+++ b/app/ai/model_config.py
@@ -9,14 +9,14 @@ from app.ai.models import LLM
 class JobCleanModel:
     """岗位清洗模块"""
     # 第一次AI：结构化提取岗位信息
-    STRUCTURE = LLM.GPT_5_4_MINI.create(temperature=0)
+    STRUCTURE = LLM.CLAUDE_SONNET_4_5.create(temperature=0)
     # 第二次AI：专业匹配
-    MAJOR_MATCH = LLM.GPT_5_4_MINI.create(temperature=0)
+    MAJOR_MATCH = LLM.CLAUDE_SONNET_4_5.create(temperature=0)
     # 第三次AI：技能提取
-    SKILL_EXTRACT = LLM.GPT_5_4_MINI.create(temperature=0)
+    SKILL_EXTRACT = LLM.CLAUDE_SONNET_4_5.create(temperature=0)
 
 
 class CompanyCleanModel:
     """公司补充模块"""
     # 公司信息补充
-    ENRICH = LLM.GPT_5_4_MINI.create(temperature=0)
+    ENRICH = LLM.CLAUDE_SONNET_4_5.create(temperature=0)
diff --git a/app/ai/models.py b/app/ai/models.py
index 8e55267..ef843c9 100644
--- a/app/ai/models.py
+++ b/app/ai/models.py
@@ -18,6 +18,7 @@ from app.config import settings
 # 供应商连接配置 = (api_key函数, base_url函数)
 _VOLCENGINE = (lambda: settings.volcengine_api_key, lambda: settings.volcengine_base_url)
 _ANTHROPIC = (lambda: settings.anthropic_api_key, lambda: settings.anthropic_base_url)
+_ANTHROPIC_ALT = (lambda: settings.anthropic_alt_api_key, lambda: settings.anthropic_alt_base_url)
 _OPENAI = (lambda: settings.openai_api_key, lambda: settings.openai_base_url)
 
 
@@ -33,6 +34,7 @@ class LLM(Enum):
 
     # Claude（Anthropic 风格）
     CLAUDE_OPUS = ("claude-opus-4-6", ChatAnthropic, *_ANTHROPIC)
+    CLAUDE_SONNET_4_5 = ("claude-sonnet-4-5-20250929", ChatAnthropic, *_ANTHROPIC_ALT)
 
     # OpenAI（OpenAI 兼容）
     GPT_5_4_MINI = ("gpt-5.4-mini", ChatOpenAI, *_OPENAI)
diff --git a/app/config/settings.py b/app/config/settings.py
index 4d5ece6..435e472 100644
--- a/app/config/settings.py
+++ b/app/config/settings.py
@@ -37,6 +37,10 @@ class Settings(BaseSettings):
     anthropic_api_key: str = "sk-43ccdb29caa7e9ebe0db8ac0958c63f6d3a2d62e59064d3d26d94332055a9bc9"
     anthropic_base_url: str = "https://code.warpdevloper.cloud"
 
+    # Claude 备用中转（Anthropic 风格）
+    anthropic_alt_api_key: str = "sk-ac5544257dcf843de887fa153c4f4a11fa5007cbae4b8f4eec895a354c89ff7b"
+    anthropic_alt_base_url: str = "http://98.142.250.143:8080"
+
     # OpenAI（OpenAI 兼容风格）
     openai_api_key: str = "sk-12663c3a1ae5db0bc9aee78ffa64e7a0b95bcf7a15541040dd2bce573130f5c8"
     openai_base_url: str = "https://re.94xy.cn/v1"