From the Transformer to ChatGPT: The Birth of LLMs (2017–2022)
The steps that made today's LLMs possible, from the 2017 "Attention Is All You Need" paper to the launch of ChatGPT: the Transformer, pre-training with GPT-1 and BERT, GPT-2's staged release, scaling laws and GPT-3, InstructGPT and RLHF. We see which concept in the series each step is the root of and what it changed for developers.
6 Nov 2026
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7 min
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