# BERT vs GPT vs T5 — what's the difference? | Rudrite Research

> Source: <https://research.rudrite.com/compare/bert-vs-gpt-vs-t5>
> Published: 2026-06-14 00:00:00+00:00

# BERT vs GPT vs T5

Three ways to pretrain the same transformer — read both directions, predict the next token, or cast every task as text-to-text.

A clear, side-by-side comparison with examples — part of Rudrite Research.

Three ways to pretrain the same transformer — read both directions, predict the next token, or cast every task as text-to-text.

A clear, side-by-side comparison with examples — part of Rudrite Research.