From ca0d7bbbed02c192a897d41c71c483401c39b2c7 Mon Sep 17 00:00:00 2001
From: Mark Backman <mark@daily.co>
Date: Thu, 22 May 2025 15:13:33 -0400
Subject: [PATCH] Update default model for Anthropic to Claude Sonnet 4

---
 CHANGELOG.md                          | 3 +++
 src/pipecat/services/anthropic/llm.py | 2 +-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9386e280e..2c2dab9d4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -73,6 +73,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Changed
 
+- Updated the default model for `AnthropicLLMService` to
+  `claude-sonnet-4-20250514`.
+
 - `BaseTextFilter` methods `filter()`, `update_settings()`,
   `handle_interruption()` and `reset_interruption()` are now async.
 
diff --git a/src/pipecat/services/anthropic/llm.py b/src/pipecat/services/anthropic/llm.py
index 5e0ea0ad2..2c4e9078d 100644
--- a/src/pipecat/services/anthropic/llm.py
+++ b/src/pipecat/services/anthropic/llm.py
@@ -90,7 +90,7 @@ class AnthropicLLMService(LLMService):
         self,
         *,
         api_key: str,
-        model: str = "claude-3-7-sonnet-20250219",
+        model: str = "claude-sonnet-4-20250514",
         params: Optional[InputParams] = None,
         client=None,
         **kwargs,