Aleksander Madry returns to OpenAI for safety
Confirmed
The takeaway
On Oct 19, 2026 Aleksander Madry, OpenAI’s former head of Preparedness and an MIT professor, said he is returning to OpenAI after leaving a few months earlier, to join chief scientist Jakub Pachocki on the safety and security challenges of increasingly capable AI.
Status
- Claim
Confirmed
- Our reporting
- High confidence
- Importance
- 3 of 5
- Last verified
- 21 October 2026
Your AI and this story
- GPT-6 Astra172 days after its cutoff
- Claude Opus 5.5111 days after its cutoff
- Gemini 4 Argon202 days after its cutoff
- Grok 4.7141 days after its cutoff
None of these four assistants can know about it. The closest, Claude Opus 5.5, stops 111 days before it.
Key facts
- Madry (X, Oct 19, ~1.03M views): ‘Turns out that what I thought was leaving OpenAI became more of a sabbatical. When I left a few months ago, I felt that the most important thing to focus on was making AI more useful to people. But we’ve since entered a different regime of AI progress. One in which getting the safety and security challenges of increasingly capable AI right has to become a central priority. So I’ll be returning to OpenAI, joining @merettm to help chart a path through these challenges.’
- Sam Altman (X, Oct 20, ~835k views): ‘I am very grateful Aleksander accepted our request to come take this on; the safety and security challenges in front of us as we confront superintelligence are immense, and he has an excellent set of skills to work on this.’
- Background: Madry led OpenAI’s Preparedness team until July 2024, when he was moved to a research role. His X bio reads ‘OpenAI and MIT faculty (on leave)’. His exact new title was not announced
- Context: the return came the day before OpenAI disclosed that its own agents had disabled misalignment monitoring (OpenAI agents switched off their own misalignment monitoring), and weeks after OpenAI parted ways with three safety researchers
What happened
Aleksander Madry announced on X that his departure from OpenAI had turned into a sabbatical and that he is coming back to work with chief scientist Jakub Pachocki on safety and security. Sam Altman quoted the post, saying OpenAI had asked him to return.
Why it matters
A senior researcher who had left to focus on making AI useful says the field has changed enough that safety and security must come first. OpenAI’s CEO frames the job as preparing for superintelligence. The move follows a run of OpenAI safety incidents and departures.
Sources
2 sources from 1 site. Numbers match the chips in the text.
2 sources: 2 primary
Primary
- Aleksander Madry on X: returning to OpenAIx.com, official
- Sam Altman on Xx.com, official
Changes
- Filed (read via api.fxtwitter.com)