Tag: FFN layers

Feedforward Networks in Transformers: Why Two Layers Boost Large Language Models

Feedforward Networks in Transformers: Why Two Layers Boost Large Language Models

Feedforward networks in transformers are the hidden force behind large language models. Despite their simplicity, the two-layer design powers GPT-3, Llama, and Gemini by balancing depth, efficiency, and stability. Here’s why no one has replaced it.