![Screenshot of cdn.openai.com: How Organizations Use AI: Evidence from ChatGPT [pdf]](https://hn.urlbox.com/shots/renders/2026/8/13/30b8119c-c047-4b91-94ab-992dbf272d1b.jpg)
cdn.openai.com on Hacker News
11 stories on the front page, newest first. Scroll down to watch the site change over time.
![Screenshot of cdn.openai.com: GPT-5.6 Sol Ultra produces proof of the Cycle Double Cover Conjecture [pdf]](https://hn.urlbox.com/shots/renders/2026/7/10/91480f3e-526b-426b-95b6-962a0b9ec6cf.jpg)
GPT-5.6 Sol Ultra produces proof of the Cycle Double Cover Conjecture [pdf](cdn.openai.com)
489 points by scrlk | 404 comments
OpenAI PDF paper presenting a proof of the cycle double cover conjecture in graph theory, stated to be produced entirely by GPT-5.6 Sol Ultra.
![Screenshot of cdn.openai.com: Weight-sparse transformers have interpretable circuits [pdf]](https://hn.urlbox.com/shots/renders/2025/11/22/646c15de-c22a-404b-8fd6-3745f518e73c.jpg)
![Screenshot of cdn.openai.com: How People Use ChatGPT [pdf]](https://hn.urlbox.com/shots/renders/2025/9/15/02afa0fd-7fb1-46a8-9f73-49ff1eb3f6cc.jpg)
How People Use ChatGPT [pdf](cdn.openai.com)
148 points by nycdatasci | 81 comments
GPT-5 System Card [pdf](cdn.openai.com)
72 points by 6thbit | 15 comments
![Screenshot of cdn.openai.com: A practical guide to building agents [pdf]](https://hn.urlbox.com/shots/renders/2025/6/4/a283c075-97c2-4a0d-9c75-5725de57c64c.jpg)
O3-mini System Card [pdf](cdn.openai.com)
47 points by synthwave | 16 comments
![Screenshot of cdn.openai.com: OpenAI o1 System Card [pdf]](https://hn.urlbox.com/shots/renders/2024/9/12/412d5e34-fcbb-4a92-b48a-5f357fc49d9f.jpg)
OpenAI o1 System Card [pdf](cdn.openai.com)
31 points by cubefox | 4 comments
![Screenshot of cdn.openai.com: Improving image generation with better captions [pdf]](https://hn.urlbox.com/shots/renders/2023/10/20/51b692ab-c52a-4456-9c92-9040a655cebc.jpg)
![Screenshot of cdn.openai.com: GPT-4V(ision) system card [pdf]](https://hn.urlbox.com/shots/renders/2023/9/25/6d642e0c-4ad9-4d41-9e62-000db7aec205.jpg)
GPT-4V(ision) system card [pdf](cdn.openai.com)
38 points by juunge | 8 comments