diff --git a/README.md b/README.md
index 50fc68f..334e426 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@ Derived from [OpenAI Conversation](https://www.home-assistant.io/integrations/op
 ## How it works
 Extended OpenAI Conversation uses OpenAI API's feature of [function calling](https://platform.openai.com/docs/guides/function-calling) to call service of Home Assistant.
 
-Since "gpt-3.5-turbo" model already knows how to call service of Home Assistant in general, you just have to let model know what devices you have by [exposing entities](https://github.com/jekalmin/extended_openai_conversation#preparation)
+Since OpenAI models already know how to call service of Home Assistant in general, you just have to let model know what devices you have by [exposing entities](https://github.com/jekalmin/extended_openai_conversation#preparation)
 
 ## Installation
 1. Install via registering as a custom repository of HACS or by copying `extended_openai_conversation` folder into `<config directory>/custom_components`
@@ -515,7 +515,7 @@ When using [ytube_music_player](https://github.com/KoljaWindeler/ytube_music_pla
 #### 7-1. Let model generate a query
 - Without examples, a query tries to fetch data only from "states" table like below
   > Question: When did bedroom light turn on? <br/>
-    Query(generated by gpt-3.5): SELECT * FROM states WHERE entity_id = 'input_boolean.livingroom_light_2' AND state = 'on' ORDER BY last_changed DESC LIMIT 1
+    Query(generated by gpt): SELECT * FROM states WHERE entity_id = 'input_boolean.livingroom_light_2' AND state = 'on' ORDER BY last_changed DESC LIMIT 1
 - Since "entity_id" is stored in "states_meta" table, we need to give examples of question and query.
 - Not secured, but flexible way
 
diff --git a/custom_components/extended_openai_conversation/const.py b/custom_components/extended_openai_conversation/const.py
index 45b6b5f..68405d1 100644
--- a/custom_components/extended_openai_conversation/const.py
+++ b/custom_components/extended_openai_conversation/const.py
@@ -32,7 +32,7 @@
 Do not restate or appreciate what user says, rather make a quick inquiry.
 """
 CONF_CHAT_MODEL = "chat_model"
-DEFAULT_CHAT_MODEL = "gpt-3.5-turbo-1106"
+DEFAULT_CHAT_MODEL = "gpt-4o-mini"
 CONF_MAX_TOKENS = "max_tokens"
 DEFAULT_MAX_TOKENS = 150
 CONF_TOP_P = "top_p"