diff --git a/README.md b/README.md
index e9164cd..23b576b 100644
--- a/README.md
+++ b/README.md
@@ -23,6 +23,18 @@ openai_api_key: # OpenAI API Key
 openai_model: # OpenAI Model
 # Default Value is "gpt-4o-mini"
 
+openai_temperature: # OpenAI Temperature
+# Default Value is 0.5
+
+openai_top_p: # OpenAI Top P
+# Default not set
+
+openai_frequency_penalty: # OpenAI Frequency Penalty
+# Default Value is 0
+
+openai_presence_penalty: # OpenAI Presence Penalty
+# Default Value is 0
+
 system_prompt: # System Prompt for the assistant
 
 user_input: # User Input for the assistant
diff --git a/action.yml b/action.yml
index cdbecbf..a64de68 100644
--- a/action.yml
+++ b/action.yml
@@ -18,6 +18,21 @@ inputs:
     description: "OpenAI Model"
     required: false
     default: "gpt-4o-mini"
+  openai_temperature:
+    description: "OpenAI Temperature"
+    required: false
+    default: "0.5"
+  openai_top_p:
+    description: "OpenAI Top P"
+    required: false
+  openai_frequency_penalty:
+    description: "OpenAI Frequency Penalty"
+    required: false
+    default: "0"
+  openai_presence_penalty:
+    description: "OpenAI Presence Penalty"
+    required: false
+    default: "0"
   system_prompt:
     description: "System Prompt for the assistant"
     required: true
diff --git a/src/index.ts b/src/index.ts
index eee78ae..da33157 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -7,6 +7,10 @@ import { RunnableToolFunctionWithParse } from "openai/lib/RunnableFunction";
 export let openai_base_url: string;
 export let openai_api_key: string;
 export let openai_model: string;
+export let openai_temperature: number | undefined;
+export let openai_top_p: number | undefined;
+export let openai_frequency_penalty: number | undefined;
+export let openai_presence_penalty: number | undefined;
 export let system_prompt: string;
 export let user_input: string;
 export let github_token: string;
@@ -24,6 +28,18 @@ async function checkInput() {
   if (!openai_model) {
     openai_model = "gpt-4o-mini";
   }
+  if (isNaN(openai_temperature || NaN)) {
+    openai_temperature = undefined;
+  }
+  if (isNaN(openai_top_p || NaN)) {
+    openai_top_p = undefined;
+  }
+  if (isNaN(openai_frequency_penalty || NaN)) {
+    openai_frequency_penalty = undefined;
+  }
+  if (isNaN(openai_presence_penalty || NaN)) {
+    openai_presence_penalty = undefined;
+  }
   if (!system_prompt) {
     throw new Error("system_prompt is required");
   }
@@ -49,6 +65,14 @@ async function main() {
   openai_base_url = core.getInput("openai_base_url");
   openai_api_key = core.getInput("openai_api_key");
   openai_model = core.getInput("openai_model");
+  openai_temperature = parseFloat(core.getInput("openai_temperature"));
+  openai_top_p = parseFloat(core.getInput("openai_top_p"));
+  openai_frequency_penalty = parseFloat(
+    core.getInput("openai_frequency_penalty")
+  );
+  openai_presence_penalty = parseFloat(
+    core.getInput("openai_presence_penalty")
+  );
   system_prompt = core.getInput("system_prompt");
   user_input = core.getInput("user_input");
   github_token = core.getInput("github_token");
@@ -61,6 +85,10 @@ async function main() {
   });
   const runner = openai.beta.chat.completions.runTools({
     model: openai_model,
+    temperature: openai_temperature,
+    frequency_penalty: openai_frequency_penalty,
+    top_p: openai_top_p,
+    presence_penalty: openai_presence_penalty,
     messages: [
       {
         role: "system",