Wednesday, November 4, 2026

OpenAI seems to be silently re-enabling model training on Codex chats

OpenAI seems to be silently re-enabling model training on Codex chats
509 by user052919 | 151 comments on Hacker News.
My company is pretty paranoid about leaking IP to the frontier labs through prompts, so we've all been diligent about disabling data sharing in Codex/Claude Code/etc. But yesterday my coworkers and I noticed that the setting had been silently reenabled in Codex. None of us knowingly opted back in. You can check your settings here: https://ift.tt/XKrvkGH. Look for "Improve the model for everyone". Curious if this is an isolated issue or something more widespread. EDIT: looks like this has been noted before https://ift.tt/F7ofntO EDIT: apparently you can also turn off data sharing here: https://ift.tt/0oQPpRX