OpenAI提速狂飙16倍！GPT-5.6多智能体V2上线，741轮怪物对话1秒打开

TL;DR - OpenAI reportedly rolled out Codex Multi-Agent v2 alongside major ChatGPT front-end optimizations. The updates automate model delegation and make very long agent sessions substantially faster and less resource-intensive.

• A main agent can delegate subtasks across supported models, with separate reasoning-effort settings for each sub-agent.
• Automatic routing lets difficult steps use stronger models while cheaper, faster models handle routine work.
• In a 741-turn, 231 MB test conversation, load time reportedly fell from 27.62 seconds to 1.66 seconds.
• The same test showed network requests dropping from 894 to 16 and memory growth from 1030.7 MiB to 606 MiB through selective history loading.