OpenAI vs. Anthropic for Voice Agent: 2025 Technical Comparison & Guide

1// Example: Agentic workflow with OpenAI voice agent (Node.js)
2const { OpenAI } = require("openai");
3const ai = new OpenAI({ apiKey: process.env.OPENAI_API_KEY });
4
5async function scheduleMeeting(request) {
6  const response = await ai.agenticVoiceAction({
7    prompt: `Schedule a meeting with ${request.participant} on ${request.date}`,
8    integration: "google_calendar"
9  });
10  return response;
11}
12

1import openai
2openai.api_key = "sk-xxxx"
3response = openai.ChatCompletion.create(
4  model="gpt-4-voice",
5  messages=[{"role": "user", "content": "Call Alice at 3pm"}],
6  voice={"output": "audio"}
7)
8with open("output.wav", "wb") as f:
9    f.write(response["audio"])
10

1const axios = require("axios");
2const response = await axios.post(
3  "https://api.anthropic.com/claude/voice",
4  {
5    prompt: "Remind me to submit the quarterly report",
6    voice: "Buttery"
7  },
8  {
9    headers: { "Authorization": `Bearer ${process.env.ANTHROPIC_KEY}` }
10  }
11);
12// Save audio from response.data.audio
13