A new kind of AI model from a ChatGPT inventor is thrilling developers
September 19, 2026
ChatGPT broke Diogo Almeida’s heart.
Almeida was an OpenAI researcher who helped build the chatbot and then invent reinforcement learning from human feedback (RLHF), the model-training technique perhaps most responsible for our current age of AI. But despite its capabilities, he was disappointed.
“We have lightning in a bottle, and yet it is not useful,” Almeida told…