diff --git a/packages/components/nodes/chatmodels/ChatOpenAI/ChatOpenAI.ts b/packages/components/nodes/chatmodels/ChatOpenAI/ChatOpenAI.ts
index 955563ff..bd9080c9 100644
--- a/packages/components/nodes/chatmodels/ChatOpenAI/ChatOpenAI.ts
+++ b/packages/components/nodes/chatmodels/ChatOpenAI/ChatOpenAI.ts
@@ -139,7 +139,7 @@ class ChatOpenAI_ChatModels implements INode {
         }
 
         if (maxTokens) obj.maxTokens = parseInt(maxTokens, 10)
-        if (topP) obj.topP = parseInt(topP, 10)
+        if (topP) obj.topP = parseFloat(topP)
         if (frequencyPenalty) obj.frequencyPenalty = parseInt(frequencyPenalty, 10)
         if (presencePenalty) obj.presencePenalty = parseInt(presencePenalty, 10)
         if (timeout) obj.timeout = parseInt(timeout, 10)
diff --git a/packages/components/nodes/llms/OpenAI/OpenAI.ts b/packages/components/nodes/llms/OpenAI/OpenAI.ts
index b0af867d..1bf7486e 100644
--- a/packages/components/nodes/llms/OpenAI/OpenAI.ts
+++ b/packages/components/nodes/llms/OpenAI/OpenAI.ts
@@ -139,7 +139,7 @@ class OpenAI_LLMs implements INode {
         }
 
         if (maxTokens) obj.maxTokens = parseInt(maxTokens, 10)
-        if (topP) obj.topP = parseInt(topP, 10)
+        if (topP) obj.topP = parseFloat(topP)
         if (frequencyPenalty) obj.frequencyPenalty = parseInt(frequencyPenalty, 10)
         if (presencePenalty) obj.presencePenalty = parseInt(presencePenalty, 10)
         if (timeout) obj.timeout = parseInt(timeout, 10)