diff --git a/CHANGELOG.md b/CHANGELOG.md
index 870550b9c..9ae41fe67 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -44,6 +44,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Changed
 
+- `GrokLLMService` now uses `grok-3-beta` as its default model.
+
 - Daily's REST helpers now include an `eject_at_token_exp` param, which ejects
   the user when their token expires. This new parameter defaults to False.
   Also, the default value for `enable_prejoin_ui` changed to False and
diff --git a/src/pipecat/services/grok/llm.py b/src/pipecat/services/grok/llm.py
index 90c8df14f..a57434986 100644
--- a/src/pipecat/services/grok/llm.py
+++ b/src/pipecat/services/grok/llm.py
@@ -42,7 +42,7 @@ class GrokLLMService(OpenAILLMService):
     Args:
         api_key (str): The API key for accessing Grok's API
         base_url (str, optional): The base URL for Grok API. Defaults to "https://api.x.ai/v1"
-        model (str, optional): The model identifier to use. Defaults to "grok-2"
+        model (str, optional): The model identifier to use. Defaults to "grok-3-beta"
         **kwargs: Additional keyword arguments passed to OpenAILLMService
     """
 
@@ -51,7 +51,7 @@ class GrokLLMService(OpenAILLMService):
         *,
         api_key: str,
         base_url: str = "https://api.x.ai/v1",
-        model: str = "grok-2",
+        model: str = "grok-3-beta",
         **kwargs,
     ):
         super().__init__(api_key=api_key, base_url=base_url, model=model, **kwargs)