# 美团LongCat-2.0发布，OpenAI推理成本减半等AI动态

- 来源：Rohan Paul (@rohanpaul_ai)
- 发布时间：2026-07-03 08:42
- AIHOT 分数：44
- AIHOT 链接：https://aihot.virxact.com/items/cmr48jkqb01jysl3gjo27vxoi
- 原文链接：https://x.com/rohanpaul_ai/status/2072843494880891116

## AI 摘要

美团推出LongCat-2.0，声称中国本地训练AI新里程碑。据The Information，OpenAI将部分现有模型推理成本削减过半，注销版ChatGPT仅用几百块NVIDIA GPU。Anthropic推出“Claude Science”面向科研，并发布145页Claude Sonnet-5系统卡。Perplexity CEO称有价值用户已非普通用户。Meta员工30天内消耗超60万亿tokens，单一用户达2800亿。另有论文探讨更大模型的学习优势。

## 正文

Today's edition of my newsletter just went out.

🔗 https://www.rohan-paul.com/p/china-claims-a-new-milestone-in-locally

🗞️ China claims a new milestone in locally trained AI， as Meituan rolls out LongCat-2.0.

🗞️ The Information reports that OpenAI has cut inference costs by more than half on some existing models， while logged-out ChatGPT traffic ran on only a couple hundred Nvidia GPUs.

🗞️ Anthropic unveils 'Claude Science' for scientific research.

🗞️145 page Claude Sonnet-5 System Card

🗞️ Perplexity's CEO Aravind Srinivas is pointing to a quiet shift in AI use： the valuable user is no longer the average user.

🗞️ Meta employees used over 60 trillion tokens in 30 days， with one user alone consumed 280 billion.

🗞️ "Why Larger Models Learn More： Effects of Capacity， Interference， and Rare-Task Retention"