diff --git a/api/openai.js b/api/openai.js
index 583899d..b14f97b 100644
--- a/api/openai.js
+++ b/api/openai.js
@@ -1,4 +1,5 @@
 const token = process.env.OPENAI_TOKEN;
+const DEFAULT_MODEL = 'gpt-3.5-turbo';
 
 export const config = {
     runtime: 'edge',
@@ -73,7 +74,7 @@ export default async (request) => {
                     'content-type': 'application/json'
                 },
                 body: JSON.stringify({
-                    model: 'gpt-3.5-turbo',
+                    model: input.model || DEFAULT_MODEL,
                     messages: input.messages
                 })
             }).then(r => r.json());
diff --git a/api/openaistream.js b/api/openaistream.js
index a08ae1d..3f4b612 100644
--- a/api/openaistream.js
+++ b/api/openaistream.js
@@ -1,4 +1,5 @@
 const token = process.env.OPENAI_TOKEN;
+const DEFAULT_MODEL = 'gpt-3.5-turbo';
 
 export const config = {
     runtime: 'edge',
@@ -76,7 +77,7 @@ export default async (request) => {
                             'content-type': 'application/json'
                         },
                         body: JSON.stringify({
-                            model: 'gpt-3.5-turbo',
+                            model: input.model || DEFAULT_MODEL,
                             temperature: 0.5,
                             stream: true,
                             messages: input.messages
diff --git a/client/nearopenaiclient.js b/client/nearopenaiclient.js
index 95047aa..dc2c623 100644
--- a/client/nearopenaiclient.js
+++ b/client/nearopenaiclient.js
@@ -13,7 +13,7 @@ const config = {
     explorerUrl: `https://explorer.${networkId}.near.org`
 };
 
-export async function create_ask_ai_request_body(messages) {
+export async function create_ask_ai_request_body(messages, model) {
     const near = await connect(config);
 
     const account = await near.account(process.env.NEAR_ACCOUNT_ID);
@@ -52,13 +52,14 @@ export async function create_ask_ai_request_body(messages) {
         signed_transaction: Buffer.from(signedTx.encode()).toString('base64'),
         transaction_hash: nearApi.utils.serialize.base_encode(txHash),
         sender_account_id: accountId,
-        messages: messages
+        messages: messages,
+        model: model
     });
 }
 
-export async function ask_ai(messages) {
+export async function ask_ai(messages, model) {
     try {
-        const requestbody =  await create_ask_ai_request_body(messages);
+        const requestbody =  await create_ask_ai_request_body(messages, model);
         const airesponse = await fetch('https://near-openai.vercel.app/api/openai', {
             method: 'POST',
             body: requestbody