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Encoder vs Decoder LLMs: What's the Difference?
Last Updated: December 10, 2025
Ashish Pratap Singh
6 min read
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Encoder vs Decoder LLMs: What's the Difference?...
The Original Transformer Had Both
Encoder Models: Understanding Text
Decoder Models: Generating Text
The Key Difference: Attention Direction
Encoder-Decoder Models: Both Together
When to Use Which
Quick Reference
The Shift to Decoders
Summary
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