diff --git a/public/scripts/openai.js b/public/scripts/openai.js
index 39b3970ad..181254c7b 100644
--- a/public/scripts/openai.js
+++ b/public/scripts/openai.js
@@ -1938,12 +1938,15 @@ async function sendOpenAIRequest(type, messages, signal) {
         generate_data['logprobs'] = 5;
     }
 
-    // Remove logit bias, logprobs and stop strings if it's not supported by the model
-    if (isOAI && oai_settings.openai_model.includes('vision') || isOpenRouter && oai_settings.openrouter_model.includes('vision')) {
+    // Remove logit bias/logprobs/stop-strings if not supported by the model
+    if (isOAI && ['gpt','vision'].includes(oai_settings.openai_model) || isOpenRouter && ['gpt','vision'].includes(oai_settings.openrouter_model)) {
         delete generate_data.logit_bias;
         delete generate_data.stop;
         delete generate_data.logprobs;
     }
+    if (isOAI && oai_settings.openai_model.includes('gpt-4.5-preview') || isOpenRouter && oai_settings.openrouter_model.includes('gpt-4.5-preview')) {
+        delete generate_data.logprobs;
+    }
 
     if (isClaude) {
         generate_data['top_k'] = Number(oai_settings.top_k_openai);