GPT-OSS: Specs, Setup, and Self-Hosting Guide

OpenAI has entered the open-source large language model (LLM) domain with the release of GPT-OSS-20B and GPT-OSS-120B, marking its first open-source contribution since Whisper and CLIP. These models, licensed under Apache 2.0, are designed for diverse deployment environments, from high-end consumer hardware to data center-grade GPUs, offering features like chain-of-thought reasoning, fine-tuning support, and a mixture-of-experts architecture. The models are accessible through various platforms such as the OpenAI Playground, HuggingFace, and OLlama, allowing users to run them locally or in the cloud, with flexibility in deployment and privacy control. While they may not surpass the latest proprietary models, GPT-OSS provides an attractive option for those prioritizing transparency and cost-efficiency, and their adoption by the community remains to be seen.