YUNOVA · Natural Language Processing · Module 9: Advanced transformers

Sequence-to-sequence models: T5 and BART

Notes for offline study · 3 November 2026

Sequence-to-sequence models: T5 and BART

Key points

  • Seq2seq models have an encoder that reads input and a decoder that writes output.
  • T5 frames every task as text-to-text, using a prefix like "summarize:".
  • BART is pre-trained by reconstructing corrupted text.