本期汇总 2026-01-25 当周来自 OpenAI News 的 3 条更新。内容为信源标题与摘要的客观转述，完整信息请点原文链接。
1. Unrolling the Codex agent loop
- 来源：OpenAI News（原文日期 2026-01-23）
- 分类：产品发布
- 原文：https://openai.com/index/unrolling-the-codex-agent-loop
A technical deep dive into the Codex agent loop, explaining how Codex CLI orchestrates models, tools, prompts, and performance using the Responses API.
2. Think Bigger: How Small Teams Win with ChatGPT
- 来源：OpenAI News（原文日期 2026-01-23）
- 分类：产品发布
- 原文：https://openai.com/business/guides-and-resources/chatgpt-business-smb-guide
A practical guide showing how small teams use ChatGPT to analyze data, create marketing materials, manage budgets, run meetings, and make better decisions.
3. Scaling PostgreSQL to power 800 million ChatGPT users
- 来源：OpenAI News（原文日期 2026-01-22）
- 分类：产品发布
- 原文：https://openai.com/index/scaling-postgresql
An inside look at how OpenAI scaled PostgreSQL to millions of queries per second using replicas, caching, rate limiting, and workload isolation.