Sebastian Raschka • 8/9/2025

From GPT-2 to gpt-oss: Analyzing the Architectural Advances

This technical article provides an in-depth analysis of OpenAI's new open-weight gpt-oss models, comparing their architecture to GPT-2 and examining key improvements including RoPE embeddings, SwiGLU activations, Mixture-of-Experts, and MXFP4 optimization for single-GPU deployment. It also includes comparisons with other architectures like Qwen3 and discusses performance benchmarks.

0 comments

#Mixture Of Experts #Transformer Architecture #LLM Optimization