Why was OpenAI surprised by ChatGPT’s success? What does it really mean to “reason” in an AI system? And what’s next for agentic coding and multimodal assistants? OpenAI Head of ChatGPT Nick Turley and Chief Research Officer Mark Chen unpack it all in a conversation that pulls back the curtain on the making of OpenAI’s most iconic product.

00:00 – Intro: Meet Nick Turley and Mark Chen

00:40 – Origin of the name "ChatGPT"

03:50 – ChatGPT’s viral takeoff

07:00 – Internal debate before launch

9:40 – Evolution of OpenAI’s launch approach

11:00 – The sycophancy incident and RLHF

14:45 – Balancing usefulness vs. neutrality in model behavior

20:00 – Memory and the future of personalization

22:50 – ImageGen’s breakthrough moment

29:00– Cultural shifts in safety and the freedom to explore

33:10 – Code, Codex, and the rise of agentic programming

37:45 - Coding with taste

41:45 – Internal adoption of Codex

43:40 – Skills that matter: curiosity, agency, adaptability

46:45 – OpenAI’s “Do Things” culture

51:30 – Adapting to an AI future

55:15 – The opportunities ahead: healthcare, research

01:01:00 – Async workflows and the superassistant

01:05:40 – Favorite ChatGPT tips

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