John Schulman

@johnschulman2

@thinkymachines. Interested in reinforcement learning, alignment, birds, jazz music

joschu.net

Joined May 2021

John Schulman
@johnschulman2
Aug 6
On the OpenAI agents forming message boards: it's surprising that they developed such a strong "altruistic" drive to help each other. I wonder if this is caused by RL on parallel subagent setups where all agents get rewarded when the team succeeds.
John Schulman
@johnschulman2
Aug 5
Interesting how these models go into a monomaniacal rage on cyber evals. I wonder if we're seeing chunky post-training arxiv.org/abs/2602.05910 in action, where the models pattern-match the situation to a part of the RLVR training distribution where task completion is the only
AI Security Institute (AISI)
@AISecurityInst
Aug 4
On July 28th, we identified an incident during a routine cyber evaluation in which AI agents took sustained, unsanctioned actions directed at real people and organisations. The behaviour came mostly from one model (Anthropic's Mythos 5), with a small number of events from
John Schulman
@johnschulman2
Aug 1
We love open weights and plan to keep releasing open-weight models and fine-tuning tools. But we’re not absolutists; misuse risks are real. Here’s how we’re thinking about a safe path forward, and the research needed to get there. Come work on it with us.
Thinking Machines
@thinkymachines
Jul 31
Releasing weights indiscriminately isn't safe. Neither is keeping capable models inside a few labs. We think there's a path between them. We haven't mapped all of it. Our new post covers the part we can see: how we assessed Inkling, and why access should widen in stages.
John Schulman
@johnschulman2
Jul 23
OpenAI should release a detailed transcript from the Hugging Face hacking incident -- it would be helpful for the field learn from. Did the top-level agent know about the hacking, or was there some "value drift" between it and its subagents? How did it rationalize its behavior?
John Schulman
@johnschulman2
Jul 15
Inkling is out today, with open weights and in Tinker. It's been fun to watch this one come together: pretraining began last winter, and starting in mid-January a small team built up the coding, reasoning, and agentic training from there. We learned a lot building it, and I hope
Thinking Machines
@thinkymachines
Jul 15
Today, we are introducing Inkling. Inkling reasons efficiently across text, image, and audio modalities. We are making the full weights available. thinkingmachines.ai/news/introduci… Available today for fine-tuning on Tinker. Play with it in the Inkling Playground. 🧵