
As GPT-5 launches today, it's hard to forget the first ChatGPT-4 model called 0915-gpt4 internally at 2022. @shengjia_zhao did RM, I did PPO and deployed it that Friday for @johnschulman2 to test. First prompt was tic-tac-toe, and it played surprisingly well. Time flies!
OpenAI@OpenAI
GPT-5 is here. Rolling out to everyone starting today. openai.com/gpt-5/
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