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BERT (2018): bidirectional pretraining that unified NLP

Devlin et al. released BERT, popularizing language-model fine-tuning via masked LM and next sentence prediction.

BERT (2018): bidirectional pretraining that unified NLP

In October 2018, Google published BERT: Bidirectional Encoder Representations from Transformers. Masked pretraining enabled rich bidirectional contexts.

Fine-tuning BERT smashed records on GLUE and SQuAD. Industry adopted “download checkpoint + adapt” as the standard flow.

BERT fixed the encoder paradigm; GPT fixed the generative decoder. Tension between them shaped products through the ChatGPT era.