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OpenAI explains the cached copy of the web it uses to train models offline

OpenAI says it built an 'offline world' from cached web content. Its strongest models are trained cut off from the internet, and this world lets them practise browsing, searching for information and using web apps. OpenAI says AI models need computing environments where they can write and run code.

Why it matters: It shows how OpenAI tries to train web-using agents without letting them touch the live internet. It is OpenAI's own description and changes nothing for users today.
Company claimTechmeme / OpenAI