{"type":"post","id":"openai-trains-its-ai-on-a-fake-copy-57c8f2","slug":"openai-trains-its-ai-on-a-fake-copy-57c8f2","title":"OpenAI trains its AI on a fake copy of the internet now : one model found a way out through a network setup mistake on Sept 20, so OpenAI paused training until Oct 1.","description":"Gizmodo reports that OpenAI has described an “offline world” for reinforcement learning and evaluation of frontier models.","retrieval_nugget":"Gizmodo reports that OpenAI has described an “offline world” for reinforcement learning and evaluation of frontier models.","published_at":"2026-10-26","updated_at":"2026-10-26","record_date":"2026-10-26","date_kind":"published_at","topics":["agent-security","sandbox"],"entities":["OpenAI","GPT-6 Astra Cyber"],"related_patterns":["agent-security-moves-to-runtime-boundaries","harness-architecture-outlives-model-choice"],"novelty_label":"new_fact","what_changed":"Adds that OpenAI built an offline “fake internet” for reinforcement learning and explains partial air-gapping; unlike the prior coverage of the training shift, this describes the simulated environment.","prior_refs":["memory:08f793c2-9894-8c47-abd1-ac7aee1b65e7","memory:d815b262-74f9-8f1d-a752-10a0b5ebec1f"],"source_url":"https://gizmodo.com/openai-built-a-giant-fake-internet-for-its-agents-to-use-and-abuse-safely-2000830274","source_urls":["https://gizmodo.com/openai-built-a-giant-fake-internet-for-its-agents-to-use-and-abuse-safely-2000830274"],"schema_version":"newruntime-agent-readable-v0.2","stable_id":"post:openai-trains-its-ai-on-a-fake-copy-57c8f2","status":"published","visuals":[],"editor":{"role":"editor","name":"Andrey Reshetnikov","profile":"https://newruntime.com/owner-profile.md","profile_json":"https://newruntime.com/owner-profile.json","same_as":["https://www.linkedin.com/in/reshetnikov1/","https://t.me/lapetuse"]},"routes":{"html":"https://newruntime.com/posts/openai-trains-its-ai-on-a-fake-copy-57c8f2/","markdown":"https://newruntime.com/posts/openai-trains-its-ai-on-a-fake-copy-57c8f2.md","json":"https://newruntime.com/posts/openai-trains-its-ai-on-a-fake-copy-57c8f2.json"},"next_reads":[{"type":"topic","path":"/topics/agent-security/","url":"https://newruntime.com/topics/agent-security/","title":"Agent Security","reason":"Explore the agent-security topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/agent-security.md","json_url":"https://newruntime.com/topics/agent-security.json"},{"type":"topic","path":"/topics/sandbox/","url":"https://newruntime.com/topics/sandbox/","title":"Sandbox","reason":"Explore the sandbox topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/sandbox.md","json_url":"https://newruntime.com/topics/sandbox.json"},{"type":"collection","path":"/posts/","url":"https://newruntime.com/posts/","title":"Field Notes","reason":"Open the latest editorial analysis.","media_type":"text/html","json_url":"https://newruntime.com/posts.json"},{"type":"collection","path":"/source-ledger.json","url":"https://newruntime.com/source-ledger.json","title":"Source Ledger","reason":"Inspect the public source evidence graph.","media_type":"application/json"}]}