OpenAI has released two permissively licensed (Apache 2.0) models for public use. Designed for agentic tasks and deeply customizable, these models offer access to the full chain of thought, which is valuable not only for debugging but also for learning. gpt-oss-120b and gpt-oss-20b are now available on Hugging Face and Github.
OpenAI - Open Models
OpenAI just dropped two open models under Apache 2.0 — including a 120B parameter model designed for agentic tasks. They’re built to be transparent, customizable, and ready for real-world use.