Recommend GPT-Live for realtime, and upgrade to Agents 1.9

package.json

@@ -19,21 +19,21 @@
     "pnpm": ">=10.0.0"
   },
   "devDependencies": {
-    "@eslint/js": "^9.39.4",
+    "@eslint/js": "^9.39.5",
     "@trivago/prettier-plugin-sort-imports": "^5.2.2",
-    "@types/node": "^24.10.1",
-    "eslint": "^9.39.4",
+    "@types/node": "^24.13.5",
+    "eslint": "^9.39.5",
     "globals": "^16.5.0",
-    "jiti": "^2.6.1",
+    "jiti": "^2.7.0",
     "typescript": "^5.9.3",
-    "typescript-eslint": "^8.58.1",
-    "vitest": "^4.1.4"
+    "typescript-eslint": "^8.70.0",
+    "vitest": "^4.1.11"
   },
   "dependencies": {
-    "@livekit/agents": "^1.6.3",
-    "@livekit/plugins-ai-coustics": "^0.2.14",
-    "@livekit/rtc-node": "^0.13.31",
-    "dotenv": "^17.4.1",
-    "zod": "^4.4.3"
+    "@livekit/agents": "^1.9.0",
+    "@livekit/plugins-ai-coustics": "^0.3.2",
+    "@livekit/rtc-node": "^0.13.35",
+    "dotenv": "^17.4.2",
+    "zod": "^4.6.5"
   }
 }

src/agent.ts

@@ -42,13 +42,14 @@ export function createAgent() {
     llm: new inference.LLM({ model: 'google/gemma-4-31b-it' }),
 
     // To use a realtime model instead of a voice pipeline, replace the LLM
-    // with a RealtimeModel and remove the STT/TTS from the AgentSession
-    // (Note: This is for the OpenAI Realtime API. For other providers, see https://docs.livekit.io/agents/models/realtime/)
+    // with a realtime model and remove the STT/TTS from the AgentSession
+    // (Note: This is for OpenAI GPT-Live, the recommended speech-to-speech model.
+    // For other providers, see https://docs.livekit.io/agents/models/realtime/)
     // 1. Install '@livekit/agents-plugin-openai'
     // 2. Set OPENAI_API_KEY in .env.local
     // 3. Add `import * as openai from '@livekit/agents-plugin-openai'` to the top of this file
     // 4. Replace the llm option with:
-    //    llm: new openai.realtime.RealtimeModel({ voice: 'marin' }),
+    //    llm: new openai.realtime.GPTLiveModel({ voice: 'marin' }),
 
     // To add tools, specify `tools` in the constructor.
     // Here's an example that adds a simple weather tool.

src/main.ts

@@ -1,5 +1,5 @@
 import { ServerOptions, cli, defineAgent, inference, voice } from '@livekit/agents';
-import { audioEnhancement } from '@livekit/plugins-ai-coustics';
+import { EnhancerModel, audioEnhancement } from '@livekit/plugins-ai-coustics';
 import dotenv from 'dotenv';
 import { fileURLToPath } from 'node:url';
 import { createAgent } from './agent.ts';
@@ -55,7 +55,7 @@ export default defineAgent({
       inputOptions: {
         // ai-coustics QUAIL audio enhancement for noise cancellation
         // Works for both WebRTC and telephony (SIP) participants
-        noiseCancellation: audioEnhancement({ model: 'quailVfS' }),
+        noiseCancellation: audioEnhancement({ model: EnhancerModel.QuailVfS }),
       },
     });