diff --git a/frontend-nextjs/app/api/session/route.ts b/frontend-nextjs/app/api/session/route.ts
index a6ddae5..ad66457 100644
--- a/frontend-nextjs/app/api/session/route.ts
+++ b/frontend-nextjs/app/api/session/route.ts
@@ -161,7 +161,7 @@ export async function GET(request: NextRequest) {
           "Content-Type": "application/json",
         },
         body: JSON.stringify({
-          model: "gpt-4o-mini-realtime-preview-2024-12-17",
+          model: "gpt-realtime-1.5",
           instructions: systemPrompt,
           voice: dbUser.personality?.oai_voice ?? "ballad",
         }),
diff --git a/frontend-nextjs/app/components/Realtime/lib/realtimeConnection.ts b/frontend-nextjs/app/components/Realtime/lib/realtimeConnection.ts
index df0a5e2..0fb3b09 100644
--- a/frontend-nextjs/app/components/Realtime/lib/realtimeConnection.ts
+++ b/frontend-nextjs/app/components/Realtime/lib/realtimeConnection.ts
@@ -21,7 +21,7 @@ export async function createRealtimeConnection(
   await pc.setLocalDescription(offer);
 
   const baseUrl = "https://api.openai.com/v1/realtime";
-  const model = "gpt-4o-realtime-preview-2024-12-17";
+  const model = "gpt-realtime-1.5";
 
   const sdpResponse = await fetch(`${baseUrl}?model=${model}`, {
     method: "POST",
diff --git a/server-deno/models/openai.ts b/server-deno/models/openai.ts
index 3a557c8..1ddca7a 100644
--- a/server-deno/models/openai.ts
+++ b/server-deno/models/openai.ts
@@ -308,7 +308,7 @@ export const connectToOpenAI = async ({
     try {
         console.log(`Connecting to OpenAI...`);
         const sessionOptions = {
-            model: "gpt-4o-mini-realtime-preview-2024-12-17",
+            model: "gpt-realtime-1.5",
             turn_detection: {
                 type: "server_vad",
                 threshold: 0.4,
diff --git a/server-deno/realtime/api.js b/server-deno/realtime/api.js
index a99c54f..e2617e3 100644
--- a/server-deno/realtime/api.js
+++ b/server-deno/realtime/api.js
@@ -56,7 +56,7 @@ export class RealtimeAPI extends RealtimeEventHandler {
      * @param {{model?: string}} [settings]
      * @returns {Promise<true>}
      */
-    async connect({ model } = { model: 'gpt-4o-realtime-preview-2024-10-01' }) {
+    async connect({ model } = { model: 'gpt-realtime-1.5' }) {
         if (!this.apiKey && this.url === this.defaultUrl) {
             console.warn(`No apiKey provided for connection to "${this.url}"`);
         }
@@ -113,7 +113,7 @@ export class RealtimeAPI extends RealtimeEventHandler {
             const wsModule = await import(/* webpackIgnore: true */ moduleName);
             const WebSocket = wsModule.default;
             const ws = new WebSocket(
-                'wss://api.openai.com/v1/realtime?model=gpt-4o-realtime-preview-2024-10-01',
+                'wss://api.openai.com/v1/realtime?model=gpt-realtime-1.5',
                 [],
                 {
                     finishRequest: (request) => {
diff --git a/server-deno/realtime/client.js b/server-deno/realtime/client.js
index 23ae754..12759c8 100644
--- a/server-deno/realtime/client.js
+++ b/server-deno/realtime/client.js
@@ -391,7 +391,7 @@ export class RealtimeClient extends RealtimeEventHandler {
      * @returns {Promise<true>}
      */
     async connect({
-        model = 'gpt-4o-mini-realtime-preview-2024-12-17',
+        model = 'gpt-realtime-1.5',
         turn_detection = null,
         voice,
         instructions,