提示词缓存

const response = await client.chat.completions.create({
  model: 'gpt-4o',
  messages: [{ role: 'user', content: 'What is 2+2?' }],
  cache: {
    enabled: true,
    ttl: 3600, // cache for 1 hour
  },
});

console.log(response.openmodex?.cache_hit); // true on subsequent requests

const response = await client.chat.completions.create({...});

if (response.openmodex?.cache_hit) {
  console.log('Served from cache!');
}