zlacker

>>convex+(OP)
GPT5 pre-training just ended I believe. Brock, Pachocki, Szymon Sidor, would have likely all been involved.

These are huge losses. Pachocki led pre-training for GPT-4, and probably GPT-5. Brockman is the major engineer responsible for the efficiency improvements that enabled ChatGPT and GPT-4 to be even remotely cost-effective. That is a piece that is often overlooked, but OpenAI's advantage over the competition in compute efficiency is probably even larger than the model itself.

>>aidama+67
Greg Brockman hasn't quit OpenAI. He quit the board[1].

   As a part of this transition, Greg Brockman will be stepping down as chairman   
   of the board and will remain in his role at the company, reporting to the CEO.  

[1] https://openai.com/blog/openai-announces-leadership-transiti...

>>seanhu+3k
he tweeted he's leaving the company a few hours after the press release