diff --git a/default/content/presets/openai/Default.json b/default/content/presets/openai/Default.json
index e32590a32..e2345c687 100644
--- a/default/content/presets/openai/Default.json
+++ b/default/content/presets/openai/Default.json
@@ -22,7 +22,7 @@
     "count_penalty": 0,
     "top_p": 1,
     "top_k": 0,
-    "top_a": 1,
+    "top_a": 0,
     "min_p": 0,
     "repetition_penalty": 1,
     "openai_max_context": 4095,
diff --git a/public/scripts/openai.js b/public/scripts/openai.js
index ea5c685da..b8c0efd8d 100644
--- a/public/scripts/openai.js
+++ b/public/scripts/openai.js
@@ -238,7 +238,7 @@ const default_settings = {
     top_p_openai: 1.0,
     top_k_openai: 0,
     min_p_openai: 0,
-    top_a_openai: 1,
+    top_a_openai: 0,
     repetition_penalty_openai: 1,
     stream_openai: false,
     websearch_cohere: false,
@@ -318,7 +318,7 @@ const oai_settings = {
     top_p_openai: 1.0,
     top_k_openai: 0,
     min_p_openai: 0,
-    top_a_openai: 1,
+    top_a_openai: 0,
     repetition_penalty_openai: 1,
     stream_openai: false,
     websearch_cohere: false,