OpenAI API vs Anthropic API 比較

// OpenAI API — 構造化出力による製品分析

import OpenAI from 'openai';
import { z } from 'zod';
const client = new OpenAI({ apiKey: process.env.OPENAI_API_KEY });

const ProductSchema = z.object({
  name: z.string(),
  category: z.string(),
  sentiment: z.enum(['positive', 'negative', 'neutral']),
  keyFeatures: z.array(z.string()),
  score: z.number().min(1).max(10)
});

const response = await client.beta.chat.completions.parse({
  model: 'gpt-5-2026-02',
  messages: [
    { role: 'system', content: 'Ürün incele ve analiz et.' },
    { role: 'user', content: 'iPhone 16 Pro Max incelemesi: ...' }
  ],
  response_format: { type: 'json_schema', json_schema: { /* zod schema */ } }
});

const product = ProductSchema.parse(response.choices[0].message.parsed);

// Anthropic API — ドキュメント分析と構造化出力

import Anthropic from '@anthropic-ai/sdk';
const client = new Anthropic({ apiKey: process.env.ANTHROPIC_API_KEY });

// 長文ドキュメント分析(100万トークンコンテキスト - Opus 4.7)
const message = await client.messages.create({
  model: 'claude-opus-4-7',
  max_tokens: 4096,
  system: 'Hukuki belgeleri analiz et ve riskleri belirle.',
  messages: [
    {
      role: 'user',
      content: [
        { type: 'text', text: 'Bu sözleşmedeki riski değerlendir:' },
        { type: 'text', text: contractText } // 10万トークン超のドキュメント
      ]
    }
  ]
});

// ツール利用(関数呼び出し)
const withTools = await client.messages.create({
  model: 'claude-opus-4-7',
  max_tokens: 1024,
  tools: [{ name: 'get_weather', input_schema: { /* ... */ } }],
  messages: [{ role: 'user', content: 'İstanbul hava durumu?' }]
});