diff --git a/conf/llm_factories.json b/conf/llm_factories.json
index a6f69dc3f..1ce9adb44 100644
--- a/conf/llm_factories.json
+++ b/conf/llm_factories.json
@@ -2371,8 +2371,8 @@
                     "model_type": "chat"
                 },
                 {
-                    "llm_name": "claude-instant-1.2",
-                    "tags": "LLM,CHAT,100k",
+                    "llm_name": "claude-3-5-sonnet-20241022",
+                    "tags": "LLM,CHAT,200k",
                     "max_tokens": 102400,
                     "model_type": "chat"
                 }
diff --git a/rag/llm/chat_model.py b/rag/llm/chat_model.py
index 9060fd450..716d020ae 100644
--- a/rag/llm/chat_model.py
+++ b/rag/llm/chat_model.py
@@ -1260,7 +1260,7 @@ class AnthropicChat(Base):
                 system=self.system,
                 stream=False,
                 **gen_conf,
-            ).json()
+            ).to_dict()
             ans = response["content"][0]["text"]
             if response["stop_reason"] == "max_tokens":
                 ans += (