You can see the official mission statements in the IRS 990 filings for each year on https://projects.propublica.org/nonprofits/organizations/810... I turned them into a Gist with fake author dates so you can see the diffs here: https://gist.github.com/simonw/e36f0e5ef4a86881d145083f759bc... Wrote this up on my blog too: https://simonwillison.net/2026/Feb/13/openai-mission-stateme...
This writeup is very useful simonw. But the title of this HN post is extremely misleading. What happened is that OpenAI rewrote the mission statement, reducing it from 63 words to 13. One of the 50 words they deleted happens to be "safely".
Someone else submitted it and it was then merged with the thread with the misleading title.